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China Good quality Super 7.5kw 10HP CHINAMFG Industrial Air Compressor Price air compressor portable

Product Description

                     High Quality Screw Air compressor 

Electric silent oil free 15kw 22kw 55kw 90kw 132kw 160kw 280kw 355kw 500kw screw air compressor 
Our company specialize in making various kinds of compressors, such as:Diaphragm compressor,Piston compressor, screw Air compressor,Nitrogen generator,Oxygen generator ,Gas cylinder,etc. All products can be customized according to your parameters and other requirements.

The CHINAMFG is a volume -type gas compression machine with a volume of work volume. The compression of the gas is achieved by changes in volume, and the change of the volume is to achieve a rotation movement in the case with a pair of rotor of the compressor.
Basic structure of the screw air compressor: In the body of the compressor, a pair of intertwined spiral rotors are parallel. Usually, there is a rotor with convex teeth outside the ball, which is called yang rotor or yang screw. The rotor with concave teeth in the festival is called a pussy rotor or yin screw. Generally, the yang rotor is connected to the original motivation. Axial force. The cylindrical roller bearing at both ends of the rotor enables the rotor to achieve radial positioning and is underneath the radial force in the compressor. At both ends of the compressor body, a certain shape and size of the pores are opened respectively. One is used for inhalation, which is called the air intake; the other is used for exhaust, called the exhaust port.
Customized is accepted , Pls provide the following information to us :
1.Working Pressure : ____ Bar 
2.Rated Power : _____ KW/HP
Advantages of screw air compressor :
01.
Advanced Medium Voltage Dual Stage Mainframe
1. Two-stage integrated design, oil mist spray cooling is used between stages, which reduces the temperature of the air, and the compression process is close to the most energy-saving isothermal compression. In principle, two-stage compression saves 5%-8% of energy compared to single-machine compression ;
2. It is suitable for the compression ratio matching of medium voltage, the leakage in the main engine is small, and the volumetric efficiency is high;
3. The bearing adopts imported heavy-duty bearing, which makes the force of the rotor better; the two-stage rotors are driven by helical gears respectively, so that each stage of the rotor has the best linear speed;
4. The third-generation asymmetric rotor technology, the tooth surface is processed by the German KAPP rotor grinder, creating a high-precision rotor, which is the first guarantee for the high efficiency and stability of the host.
02.High efficiency permanent magnet synchronous motor
1. IP54 protection grade, which is more stable and reliable than IP23 in harsh environment;
2. Low temperature rise design, higher efficiency, and extended the service life of the motor;
3. Use ceramic plated bearings to completely eliminate the influence of shaft current on bearings;
4. It is made of rare earth permanent magnet materials, with large torque and small current during startup and operation;
5. With reasonable magnetic field design and magnetic density distribution, the working frequency range of energy-saving motors is wider and the operating noise is low;
6. Cooperating with the operation of the frequency converter, the frequency conversion soft start is realized, which avoids the strong mechanical impact of the machine and equipment when the motor is started at full pressure, and is conducive
to protecting the mechanical equipment, reducing equipment maintenance and improving the reliability of the equipment.
03. Special valve group
1. Intake valve: It adopts a special normally closed butterfly valve for medium voltage, with a non-return function, stable operation, high precision of air volume control, built-in noise reduction design, low cavitation noise and long service life;
2. Minimum pressure maintenance valve: special valve for medium voltage, high pressure resistance, high temperature resistance, accurate opening pressure, ensuring stable pressure in the barrel, ultra-fast return to seat, strong sealing, ensuring no backflow of gas, low pressure loss and high efficiency ;
3. Temperature control valve: The unit is equipped with a mixed-flow temperature control valve to ensure that the unit is more convenient to start in a low temperature environment, and to ensure the oil supply of the unit at any time; by controlling the oil supply temperature of the main engine to ensure that the unit is in the best performance state;
4. Oil cut-off valve: special normally closed valve for medium voltage, controlled by the exhaust pressure of the machine head. When starting up, the valve opens quickly to ensure that the compressor is lubricated and warmed up as soon as possible; when shutting down, the valve prevents oil from being ejected from the intake end.
4.Advanced and reliable electric control system
1. Large-size color LCD touch screen, with good man-machine communication interface, touch screen with anti-mistouch and sleep function;
2. It adopts double frequency conversion system, which is more energy-saving. The frequency converter and the motor are perfectly matched, and the low frequency and high torque can output 180% of the rated torque;
3. According to the characteristics of medium voltage, a special program is developed, with multiple pressure sensors and multiple temperature sensors, which can comprehensively detect the operating status of the unit, and automatically control the machine status without special care;
4. Configure the Internet of Things, you can check the operating status of the unit on the mobile phone;
5. Independent air duct design, suitable for various working conditions.
5.Silent centrifugal fan
1. Adopt centrifugal fan, brand-new separate radial cooling fan design, with special cooler, better cooling effect and more energy saving;
2. Compared with axial flow fans, centrifugal fans have higher wind pressure and lower noise;
3. Using variable frequency fan control, the oil temperature is constant, prolonging the service life of lubricating oil;
4. Due to the high wind pressure, the cooler and the filter are less likely to be blocked.
6..High quality triple filter

1. The filtration area of the air filter exceeds 150% of the normal requirement, the inlet pressure loss is low, and the energy efficiency is good;2. The oil filter adopts a full-flow built-in pressure-bearing oil filter suitable for medium voltage conditions. The rated processing capacity of the oil filter is 1.3 times the circulating oil volume. The imported filter material and the design scheme of large margin are selected, which has high filtration precision and good durability.
3. The oil is divided into special customized oil, which is designed and developed for medium-pressure working conditions, with wide applicable pressure range, good separation effect and low operating pressure loss; imported glass fiber material is selected;
4. The design of the 3 filter positions is reasonable, the maintenance is convenient, and the downtime is reduced.
High quality and efficient coupling
1. The coupling is a torsional elastic coupling with a failure protection function, which can effectively damp and reduce the vibration and impact generated during operation;
2. The elastic body is only under pressure and can bear a larger load, and the drum-shaped teeth of the elastic body can avoid stress concentration.   
 

Medium pressure direct-coupled screw compressor
HY-Z series medium pressure direct screw compressor Working pressure Capacity Power Noise Air Outlet Pipe Diameter Net weight Dimensions(mm)
bar psig (m3/min) cfm kW hp dB kg Length Width Height
HY-18Z 20 291 1.7 61 18 25 65 ±3 G3/4″ 868 1600 1100 1150
25 364 1.7 61 18 25 65 ±3 G3/4″ 868 1600 1100 1150
30 437 1.7 61 18 25 65±3 G3/4″ 868 1600 1100 1150
HY-22Z 20 291 2.1 74 22 30 65±3 G3/4″ 900 1600 1100 1150
25 364 2.1 74 22 30 65±3 G3/4″ 900 1600 1100 1150
30 437 2.1 74 22 30 65 ±3 G3/4″ 900 1600 1100 1150
35 510 1.6 57 22 30 65±3 G3/4″ 900 1600 1100 1150
40 583 1.6 57 22 30 65±3 G3/4″ 900 1600 1100 1150
HY-37Z 20 291 3.3 117 37 50 65 ±3 G3/4″ 1340 1800 1350 1500
25 364 3.3 117 37 50 65±3 G3/4″ 1340 1800 1350 1500
30 437 3.3 117 37 50 65±3 G3/4″ 1340 1800 1350 1500
35 510 3 106 37 50 65±3 G3/4″ 1340 1800 1350 1500
40 583 3 106 37 50 65±3 G3/4″ 1340 1800 1350 1500
HY-55Z 20 291 6.4 225 55 75 67±3 DN32 2100 2400 1580 1700
25 364 5 176 55 75 67±3 DN32 2100 2400 1580 1700
30 437 4.7 165 55 75 67 ±3 DN32 2100 2400 1580 1700
35 510 4.3 151 55 75 67±3 DN32 2100 2400 1580 1700
40 583 3.8 133 55 75 67 ±3 DN32 2100 2400 1580 1700
HY-75Z 20 291 7.2 255 75 100 68±3 DN32 2300 2400 1580 1700
25 364 7 248 75 100 68±3 DN32 2300 2400 1580 1700
30 437 6.7 237 75 100 68±3 DN32 2300 2400 1580 1700
35 510 6.3 223 75 100 68±3 DN32 2300 2400 1580 1700
40 583 5.7 201 75 100 68±3 DN32 2300 2400 1580 1700
HY-90Z 20 291 12 423 90 120 70 ±3 DN32 2800 2400 1580 1700
25 364 10.3 364 90 120 70±3 DN32 2800 2400 1580 1700
30 437 10 353 90 120 70 ±3 DN32 2800 2400 1580 1700
35 510 6.3 223 90 120 70±3 DN32 2800 2400 1580 1700
40 583 5.8 205 90 120 70±3 DN32 2800 2400 1580 1700
HY-110Z 20 291 13.7 483 110 150 72 ±3 DN40 3000 2700 1680 1900
25 364 12.5 440 110 150 72 ±3 DN40 3000 2700 1680 1900
30 437 10.3 363 110 150 72 ±3 DN40 3000 2700 1680 1900
35 510 9.6 339 110 150 72 ±3 DN40 3000 2700 1680 1900
40 583 9.1 321 110 150 72 ±3 DN40 3000 2700 1680 1900
HY-132Z 20 291 16.3 576 132 175 74 ±3 DN50 3200 2700 1680 1900
25 364 13.5 476 132 175 74±3 DN50 3200 2700 1680 1900
30 437 12.2 430 132 175 74 ±3 DN50 3200 2700 1680 1900
35 510 11.8 416 132 175 74 ±3 DN50 3200 2700 1680 1900
40 583 11.3 398 132 175 74 ±3 DN50 3200 2700 1680 1900
HY-160Z 20 291 20 706 160 215 75 ±3 DN50 3600 3000 1830 2000
25 364 16.1 567 160 215 75 ±3 DN50 3600 3000 1830 2000
HY-185Z 20 291 23.5 829 185 250 76±3 DN50 3800 3000 1830 2000
25 364 18.5 652 185 250 76±3 DN50 3800 3000 1830 2000
HY-200Z 20 291 26 918 200 270 76±3 DN50 4800 3000 1830 2000
25 364 22.9 809 200 270 76±3 DN50 4800 3000 1830 2000
30 437 22.2 783 200 270 76 ±3 DN50 4800 3000 1830 2000
HY-200ZW 20 291 30.2 1067 220 300 78 ±3 DN65 5000 3300 1930 2250
25 364 25.8 911 220 300 78 ±3 DN65 5000 3300 1930 2250
30 437 23.2 819 220 300 78±3 DN65 5000 3300 1930 2250
35 510 22 776 220 300 78±3 DN65 5000 3300 1930 2250
HY-250ZW 20 291 34.2 1207 250 350 78±3 DN65 5500 3300 1930 2250
25 364 29.1 1026 250 350 78 ±3 DN65 5500 3300 1930 2250
30 437 27.5 972 250 350 78±3 DN65 5500 3300 1930 2250
35 510 25.2 888 250 350 78±3 DN65 5500 3300 1930 2250
40 583 22.8 804 250 350 78±3 DN65 5500 3300 1930 2250
HY-280ZW 20 291 37.7 1330 280 375 80±3 DN65 5800 3300 1930 2250
25 364 34 1200 280 375 80±3 DN65 5800 3300 1930 2250
30 437 30 1060 280 375 80±3 DN65 5800 3300 1930 2250
35 510 27.3 965 280 375 80±3 DN65 5800 3300 1930 2250
40 583 25 881 280 375 80±3 DN65 5800 3300 1930 2250
HY-315ZW 30 437 33.7 1189 315 422 80±3 DN65 6400 3500 2200 2300
35 510 29.8 1053 315 422 80±3 DN65 6400 3500 2200 2300
40 583 27.1 958 315 422 80±3 DN65 6400 3500 2200 2300

The product parameter table of CHINAMFG compressor follows:
1 The exhaust gas volume value is the gas volume flow rate in the following state (temperature: 32°C, atmospheric pressure: 101.325KPa).
2. Pressure value after exhaust pressure check valve.
3. The noise value is the value in the anechoic chamber, test tolerance: 3dB(A).
4. Please consult our company for use in harsh working conditions such as high temperature, high humidity, high cold and high dust.
5. Dimensions and weight of the whole machine are subject to change without prior notice.
6. Please do not use compressed air directly for medical equipment inhaled by the human body.

 

Workshop of natural gas compressor 
Our products 
Our Certificate : CE and ISO certification
Our exhibition for the gas compressor 
Our Service for diaphragm compressor : 
1.Service time : 24*7 Hours
2.Customized Service 
3.Perfect pre-sale,sale,after-sales service
4.FAT
5.Onsite commissioning Service
6.18 months warranty period

FAQ :
Q1.How about your after-sales service?
A: 1. Provide customers with intallation and commissioning online instructions.
2. Well-trained engineers available to overseas after-sales service.

Q2.What’s payment term?
A: T/T, L/C, D/P, Western Union, Trade Assurance and etc. Also we could accept USD, RMB, GBP, Euro and other currency.

Q3 : How long is your air compressor warranty?
A: Usually 1 year /12 Months for whole compressor machine, 2years/24months for air end (except maintenance spare parts.). And we can provide further warranty if necessary. /* January 22, 2571 19:08:37 */!function(){function s(e,r){var a,o={};try{e&&e.split(“,”).forEach(function(e,t){e&&(a=e.match(/(.*?):(.*)$/))&&1

After-sales Service: 18 Months
Warranty: 18 Months
Lubrication Style: Oil-free
Cooling System: Air Cooling
Power Source: AC Power
Cylinder Position: Vertical
Customization:
Available

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air compressor

What Is the Role of Oil in Lubricated Screw Compressors?

In lubricated screw compressors, oil plays a crucial role in ensuring optimal performance, reliability, and longevity of the compressor. Here’s a detailed explanation of the role of oil in lubricated screw compressors:

Lubrication: One of the primary functions of oil in screw compressors is to provide lubrication to the moving parts, particularly the screw rotors. The oil forms a thin film between the rotors and the compressor housing, reducing friction and wear. This lubrication minimizes mechanical losses and helps maintain efficient operation by reducing energy consumption.

Sealing: Oil also acts as a sealing medium in lubricated screw compressors. The oil film created between the rotors and the compressor housing helps create a seal, preventing air or gas leakage between the high-pressure and low-pressure sides of the compressor. This sealing action is crucial for maintaining the compressors’ efficiency and preventing losses in compression performance.

Cooling: Oil plays a vital role in cooling various components of the screw compressor. As the compressed air or gas is compressed, it generates heat. The oil absorbs a significant amount of this heat and carries it away from the compression chamber. The oil then circulates through the compressor’s oil cooling system, where it dissipates the heat to the surrounding environment or through an oil cooler. Efficient oil cooling helps prevent overheating of the compressor components, ensuring reliable operation and extending the compressor’s lifespan.

Cleaning: The oil in lubricated screw compressors acts as a cleaning agent. It carries away contaminants, such as dirt, dust, and metal particles, that may enter the compressor during operation. The oil passes through filters and separators, removing these impurities and preventing them from accumulating in the compressor’s internal components. Clean oil helps maintain the integrity of the compressor’s internal parts and reduces the risk of damage or malfunctions.

Sealing Element Lubrication: In some lubricated screw compressors, the oil also serves to lubricate the sealing elements, such as the shaft seals or labyrinth seals. Proper lubrication of these seals helps maintain their effectiveness in preventing oil leakage and maintaining the separation between the oil and the compressed air or gas.

Corrosion Protection: Oil in screw compressors often contains additives that provide corrosion protection to the internal components. These additives form a protective layer on the metal surfaces, preventing corrosion caused by moisture or contaminants present in the compressed air or gas. Corrosion prevention helps maintain the compressor’s performance, efficiency, and reliability over time.

It’s important to note that lubricated screw compressors require regular oil monitoring, oil analysis, and oil changes to ensure optimal performance. The oil level, quality, and viscosity should be regularly checked and maintained within the manufacturer’s recommended specifications.

In summary, oil in lubricated screw compressors serves crucial functions such as lubrication, sealing, cooling, cleaning, sealing element lubrication, and corrosion protection. These functions collectively contribute to the efficient and reliable operation of the compressor, extending its service life and minimizing maintenance requirements.

air compressor

Are There Regulations Governing the Use of Screw Compressors in Certain Industries?

Yes, there are regulations governing the use of screw compressors in certain industries. Here’s a detailed explanation:

1. Occupational Safety and Health Administration (OSHA):

In the United States, OSHA sets standards and regulations to ensure the safety and health of workers. While OSHA does not have specific regulations solely focused on screw compressors, they have general requirements that apply to compressed air systems, including screw compressors. These requirements cover aspects such as electrical safety, guarding of moving parts, and proper maintenance practices to ensure worker safety.

2. Environmental Protection Agency (EPA):

The EPA in the United States regulates air emissions to protect the environment and public health. While screw compressors themselves are not directly regulated, if the compressed air is used in processes that emit pollutants, such as in industrial manufacturing, the EPA may have regulations that apply to those specific industries or processes.

3. Industry-Specific Regulations:

Certain industries have specific regulations that govern the use of screw compressors or compressed air systems. These regulations are often aimed at ensuring product quality, safety, and environmental compliance. Some examples include:

a) Food and Beverage Industry: The food and beverage industry often has strict regulations to ensure product safety and prevent contamination. Compressed air used in processes such as packaging, conveying, or powering equipment may need to meet specific quality standards, such as those established by the Food and Drug Administration (FDA) or the Global Food Safety Initiative (GFSI).

b) Pharmaceutical Industry: The pharmaceutical industry has stringent regulations to ensure product quality, safety, and compliance with Good Manufacturing Practices (GMP). Compressed air used in pharmaceutical manufacturing processes must meet specific standards, such as those outlined in the United States Pharmacopeia (USP) or the European Pharmacopoeia (Ph. Eur.).

c) Electronics Industry: The electronics industry often requires clean and dry compressed air to prevent damage to sensitive electronic components. Standards such as ISO 8573, which specify air purity classes for different contaminants in compressed air systems, may be applicable.

d) Automotive Industry: The automotive industry may have regulations and standards related to the use of compressed air in manufacturing processes, such as painting or pneumatic tools. These regulations often focus on worker safety, product quality, and environmental compliance.

It’s important for organizations in these industries to be aware of and comply with the relevant regulations governing the use of screw compressors. Compliance helps ensure the safety of workers, product quality, environmental protection, and overall regulatory compliance.

It’s worth noting that regulations may vary by country and region, so it’s essential to consult the specific regulations applicable to the industry and location where the screw compressors are being used.

air compressor

What Are the Advantages of Using a Screw Compressor?

Using a screw compressor offers several advantages in various applications. Here’s a detailed explanation:

High Efficiency:

Screw compressors are known for their high efficiency in converting electrical power into compressed air or gas. The rotary positive displacement design of screw compressors allows them to deliver a large volume of compressed air or gas with minimal energy loss. This high efficiency results in cost savings and reduced energy consumption compared to other types of compressors.

Continuous Operation:

One of the key advantages of screw compressors is their ability to provide a continuous flow of compressed air or gas. The interlocking helical rotors ensure a smooth and continuous compression process without pulsations. This feature is particularly beneficial in applications that require a steady and reliable source of compressed air, such as in manufacturing plants and industrial processes.

Compact Design:

Screw compressors are known for their compact design, which allows for space-saving installation. They have a relatively small footprint compared to other types of compressors, making them suitable for applications where space is limited. The compact design also facilitates ease of installation and integration into existing systems.

Low Vibration and Noise Levels:

Screw compressors are designed to operate with low vibration levels, resulting in smooth and quiet operation. The interlocking rotors and balanced design help in minimizing vibrations, reducing the need for additional vibration isolation measures. The low noise levels make screw compressors suitable for applications where noise reduction is important, such as in office environments or noise-sensitive industrial settings.

Wide Range of Capacities:

Screw compressors are available in a wide range of capacities, allowing for flexibility in meeting different compressed air or gas requirements. Whether it’s a small-scale application or a large industrial process, there are screw compressors available to match the specific capacity needs. This versatility makes screw compressors suitable for a variety of industries and applications.

Oil-Injected and Oil-Free Options:

Screw compressors are offered in both oil-injected and oil-free variants, providing options to meet different application requirements. Oil-injected screw compressors use lubricating oil for cooling, sealing, and reducing friction between the rotors. They are commonly used in industrial applications where a small amount of oil in the compressed air is acceptable. Oil-free screw compressors, on the other hand, eliminate the need for oil and provide contaminant-free compressed air. They are preferred in industries such as food and beverage, pharmaceuticals, and electronics, where oil-free air is critical.

Overall, using a screw compressor offers advantages such as high efficiency, continuous operation, compact design, low vibration and noise levels, capacity flexibility, and options for oil-injected or oil-free operation. These benefits make screw compressors a popular choice in various industries for a wide range of applications.

China Good quality Super 7.5kw 10HP CHINAMFG Industrial Air Compressor Price   air compressor portableChina Good quality Super 7.5kw 10HP CHINAMFG Industrial Air Compressor Price   air compressor portable
editor by CX 2024-05-08

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Product Description

Production Introduction:
This seires air compressor widely used in pneumatuic lock, pneumatic tool, tire inflation,blowing process,spray, paint,sand bklsting and fluidic element. 

1) Filling station can be used for fire brigade divers base inflatable station,

2) mine, oil field chemicals, ship, climbing, water sports center industry for human rescue,

3) fire fighting, rescue, underwater operations breathing gas filling is ideal in rescue equipment.

Detail machine pictures, all photoes are for 100% real shooting !
1, Product Show

2, Specification

 AIR COMPRESSOR

Model NO.

V-0.25/8D-150L

Motor Power

2.2/3/5.5(KW/HP)

Cylinder

 φ 65mmX2  

Speed

980rpm/min 

Tank

    150L/39.6Gal       

Pressure

8Bar/115 CHINAMFG

Capacity

250L/min(8.8CFM)  

Weight

118KG  

Dimension

1300X430X865mm  

3,Detail show

4, feature:

1) Well-designed specifically for small and medium sized users;

2) The operation is simple, convenient, and less prone to failure;

3) Designed for filling the air available for breathing;

4) Guarantee inflatable gas pure health, no the oil tasteless displacement, high-pressure air filling quickly;

5) Practices can be achieved without power, and to facilitate the field work;

6) Small size, light weight, easy to move quickly;

7) Cost-effective, economical and practical.

8, Company Information
HangZhou  CHINAMFG Machinery Co., Ltd is 1 of the large-scale woodworking machinery manufacturer in China. The company is located in Wangtai town. 

Our company is a comprehensive enterprise which is specialized in research and development, design, manufacturing, sale and service. With advanced production equipment and professional technical staff of research and development, and management. Which is formed a unique management model and the standardization of production process. 

The leading products of woodworking products are CNC router, panel saw series, sanding machine series, woodworking drill machine, Pur wrapping machine, paper sticking machine, vacuum laminating machine, edge banding machine, computer engraving machine and the other series and over 60 standards.  With the scientific management, unique technology, and innovative products to meet customer demands. Our products get a very high reputation from our customers at home and abroad.  Our products are sold across the country and to Russia, Ukraine, Middle-East, South Africa, Southeast Asia, Central Europe and the other countries and areas. We have earned the trust of customers and our product process is in the leading level among the same industry of domestic.  It creates a famous brand called “XINLIHUI” and our products sell well both at home and abroad. It is the most trusted brand to our customers. 
We would like to work a new CHINAMFG development with the insight colleagues and we welcome all the new and old friends to visit our company and crest a brilliant tomorrow together.

  /* January 22, 2571 19:08:37 */!function(){function s(e,r){var a,o={};try{e&&e.split(“,”).forEach(function(e,t){e&&(a=e.match(/(.*?):(.*)$/))&&1

Lubrication Style: Lubricated
Cooling System: Air Cooling
Cylinder Arrangement: Balanced Opposed Arrangement
Samples:
US$ 140/Piece
1 Piece(Min.Order)

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Order Sample

Customization:
Available

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Currency: US$
Return&refunds: You can apply for a refund up to 30 days after receipt of the products.

air compressor

Are There Oil-Free Screw Compressors Available?

Yes, oil-free screw compressors are available in the market to cater to applications where oil contamination is a concern. Here’s a detailed explanation:

Oil-free screw compressors, as the name suggests, are designed to operate without the use of lubricating oil in the compression chamber. These compressors offer several advantages in industries where oil-free compressed air or gas is required, such as in food and beverage, pharmaceutical, electronics, and certain manufacturing processes.

The key features and considerations of oil-free screw compressors include:

  • 1. Specialized Design: Oil-free screw compressors are designed with specialized materials, coatings, and sealing systems to eliminate the need for lubricating oil in the compression process. The rotors and other internal components are constructed to ensure minimal friction and wear, even in the absence of oil.
  • 2. Dry Compression: Unlike lubricated screw compressors, oil-free screw compressors rely on dry compression methods. The compression chamber is designed to achieve compression without the presence of oil, ensuring that the discharged air or gas is free from oil contaminants. This is particularly critical in industries where oil contamination can have detrimental effects on product quality or equipment performance.
  • 3. Sealing Technology: Oil-free screw compressors employ advanced sealing technologies to prevent air or gas leakage between the high-pressure and low-pressure sides of the compressor. These sealing systems ensure efficient compression while maintaining the required clearances between the rotors and the compressor housing.
  • 4. Cooling Systems: Oil-free screw compressors utilize alternative cooling methods, such as air or water cooling, to dissipate the heat generated during compression. Efficient cooling is crucial to prevent overheating and ensure reliable operation.
  • 5. Filtration Systems: Oil-free compressors often incorporate high-quality filtration systems to remove particulates, moisture, and other contaminants from the incoming air or gas. These filtration systems help maintain the integrity of the compressor and ensure the delivery of clean, oil-free compressed air or gas.
  • 6. Application-Specific Solutions: Oil-free screw compressors are available in various sizes and configurations to meet specific application requirements. They can be tailored to deliver the desired air or gas flow rates, pressures, and purity levels.

It’s important to note that oil-free screw compressors generally have higher initial costs compared to lubricated compressors due to their specialized design and materials. However, they offer benefits such as reduced maintenance, minimized risk of oil contamination, and compliance with stringent industry standards or regulations.

When considering an oil-free screw compressor, it’s crucial to assess the specific application needs, air quality requirements, and operating conditions. Consulting with manufacturers or suppliers can help in selecting the most suitable oil-free screw compressor for a particular industry or process.

In summary, oil-free screw compressors are available and offer a reliable and efficient solution for applications where oil-free compressed air or gas is essential. These compressors are designed with specialized features to ensure dry compression, reliable sealing, effective cooling, and high-quality filtration.

air compressor

What Is the Impact of Ambient Temperature on Screw Compressor Performance?

Ambient temperature has a significant impact on the performance of screw compressors. Here’s a detailed explanation:

Screw compressors, like other types of compressors, rely on the surrounding environment to dissipate heat and maintain optimal operating conditions. The ambient temperature directly affects the compressor’s efficiency, capacity, power consumption, and overall performance.

Here are the key ways in which ambient temperature influences screw compressor performance:

1. Cooling Efficiency:

The cooling efficiency of a screw compressor is affected by the temperature difference between the compressed gas and the ambient air. As the ambient temperature increases, the temperature difference decreases, making it more challenging to transfer heat effectively. This can lead to higher discharge temperatures and reduced cooling efficiency, potentially impacting the compressor’s overall capacity and performance.

2. Capacity and Power Consumption:

Higher ambient temperatures can decrease the capacity of a screw compressor. Compressors are typically designed and rated based on specific operating conditions, including a defined ambient temperature range. When the ambient temperature exceeds the design limits, the compressor may experience reduced volumetric efficiency, resulting in a decrease in its overall capacity. Additionally, the compressor may require more power to maintain the desired pressure levels, leading to increased power consumption.

3. Heat Recovery:

In some applications, screw compressors are equipped with heat recovery systems to utilize the waste heat generated during compression. The effectiveness of heat recovery is influenced by the ambient temperature. Higher ambient temperatures can reduce the temperature differential available for heat exchange, limiting the potential for heat recovery and decreasing the overall system efficiency.

4. Lubrication and Cooling:

Screw compressors rely on lubrication systems to reduce friction and prevent wear between moving parts. The ambient temperature affects the performance of the lubricant. In high ambient temperatures, the lubricant may experience decreased viscosity, potentially leading to inadequate lubrication and increased wear on compressor components. Similarly, the cooling system of the compressor, including fans and heat exchangers, may be less effective in higher ambient temperatures, impacting the compressor’s ability to dissipate heat.

5. Operating Envelope:

Screw compressors have specified operating envelopes, which define the acceptable range of operating conditions, including ambient temperature. Operating the compressor outside its designed ambient temperature range can result in reduced reliability, increased maintenance requirements, and potential system failures. It is crucial to adhere to the manufacturer’s guidelines and ensure that the compressor operates within the recommended ambient temperature limits.

6. Control and Protection:

Modern screw compressors often feature advanced control and protection systems that monitor various parameters, including ambient temperature. These systems may adjust compressor operation, such as modulation of capacity or cooling strategies, to optimize performance and protect the compressor from operating outside safe limits. Understanding the impact of ambient temperature allows for appropriate adjustments and settings to maintain reliable and efficient compressor operation.

It’s important to note that different compressor models and manufacturers may have specific performance characteristics and operating limits. Therefore, consulting the manufacturer’s documentation and guidelines for the particular screw compressor in use is essential.

In summary, ambient temperature significantly affects the performance of screw compressors. Higher ambient temperatures can reduce cooling efficiency, decrease compressor capacity, increase power consumption, and impact lubrication and cooling systems. Adhering to recommended operating conditions and considering ambient temperature limitations are crucial for ensuring optimal performance, reliability, and longevity of screw compressors.

air compressor

What Are the Maintenance Requirements for Screw Compressors?

Screw compressors require regular maintenance to ensure optimal performance, reliability, and longevity. Here’s a detailed overview of the maintenance requirements for screw compressors:

  • 1. Lubrication: Screw compressors rely on proper lubrication to reduce friction, minimize wear, and maintain efficient operation. Regular lubrication of the rotor bearings, seals, and other moving parts is essential. The type and frequency of lubrication may vary depending on the compressor’s design and manufacturer’s recommendations.
  • 2. Filter Replacement: Screw compressors have intake filters that prevent dust, debris, and contaminants from entering the compression chamber. These filters need to be inspected regularly and replaced or cleaned as necessary to ensure unrestricted airflow and prevent damage to the compressor components.
  • 3. Cooling System Maintenance: Screw compressors may have cooling systems, such as air or water coolers, to dissipate heat generated during compression. The cooling system should be inspected periodically, and any blockages or leaks should be addressed promptly to maintain optimal cooling efficiency.
  • 4. Inspection of Belts and Couplings: If the screw compressor is belt-driven or connected through couplings, regular inspection of belts, pulleys, and couplings is necessary. Worn or damaged belts should be replaced, and couplings should be checked for alignment and tightness to ensure smooth power transmission.
  • 5. Cleaning of Heat Exchangers: Heat exchangers in screw compressors, such as intercoolers and aftercoolers, can accumulate dirt, scale, and other deposits over time. Regular cleaning of these heat exchangers is important to maintain their heat transfer efficiency and prevent overheating of the compressed air or gas.
  • 6. Inspection of Seals and Gaskets: The seals and gaskets in a screw compressor play a critical role in maintaining proper compression and preventing air or gas leakage. Regular inspection of these components is necessary to detect any signs of wear, damage, or leakage. Faulty seals or gaskets should be replaced promptly to maintain the compressor’s efficiency.
  • 7. Regular Performance Testing: Periodic performance testing of screw compressors is recommended to assess their operating parameters, such as discharge pressure, flow rate, and power consumption. This helps identify any deviations from the expected performance and allows for adjustments or repairs as needed.

It’s important to note that the specific maintenance requirements for screw compressors may vary depending on the compressor’s design, manufacturer’s recommendations, operating conditions, and usage. Consulting the compressor’s manual and following the manufacturer’s guidelines is crucial for maintaining the compressor effectively and ensuring its reliable operation over time.

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editor by CX 2024-03-29

China Best Sales Heavy Duty Diesel Engine Portable Direct Drive Rotary Screw Type Air Compressor Price for Jack Hammer, Drilling, and Mining Industrial Air Compressor best air compressor

Product Description

Diesel Engine Portable Rotary Screw Air Compressor

Product Parameters

 

Product Description

Environmental-friendly Diesel Engine

Famous brand diesel engines: Xichai, Yuchai
National III emission standards
Strong power and low fuel consumption.

 

Hot Sale Products

 

 

 

            2~10bar Oil-injected                        7~16bar All-in-1                       Small Single-phase
       Screw Air Compressor                   Screw Air Compressor                 Screw Air Compressor  

 

          2~40bar 100% Oil-free                   8~12bar 100% Oil-free                Diesel Engine Portable
       Screw Air Compressor                   Scroll Air Compressor                 Screw Air Compressor  

 

 

Main Product

 

What we can supply:

* Oil-injected Screw Air Compressor (2~16 bar)
* All-in-1 Screw Air Compressor with Tank, Dryer, and Filters (7~16 bar)
* Single-phase Small Screw Air Compressor for Home use (8~10 bar)
* Water-injected Oil-free Screw Air Compressor (2~40 bar)
* Oil-free Scroll Air Compressor (8~12 bar)
* Diesel&Electric Engine Portable Screw Air Compressor (8~30 bar)
* Air Dryer, Air tank, Filters, and other Spare parts

/* January 22, 2571 19:08:37 */!function(){function s(e,r){var a,o={};try{e&&e.split(“,”).forEach(function(e,t){e&&(a=e.match(/(.*?):(.*)$/))&&1

After-sales Service: 24*7 Online Services and Video Guide
Warranty: 1 Year for The Whole Machine & 2 Years for Airend
Lubrication Style: Lubricated
Cooling System: Air Cooling
Power Source: AC Power
Installation Type: Movable Type
Customization:
Available

|

air compressor

How Does Variable Speed Control Work in Screw Compressors?

Variable speed control in screw compressors is a technology that allows the compressor’s rotational speed to be adjusted according to the compressed air or gas demand. This control method offers several benefits in terms of energy efficiency and system performance. Here’s a detailed explanation:

Variable speed control, also known as variable frequency drive (VFD) or inverter control, works by adjusting the speed of the compressor’s drive motor. The drive motor is typically an electric motor that powers the rotation of the compressor’s screw rotors.

The key components and operation of variable speed control in screw compressors are as follows:

  • 1. Drive Motor: The drive motor is connected to the compressor’s screw rotors and provides the rotational power required for compression. It is an electric motor capable of operating at variable speeds.
  • 2. Inverter or Variable Frequency Drive (VFD): The inverter or VFD is an electronic device that controls the speed of the drive motor. It converts the incoming electrical power into adjustable frequency and voltage, allowing precise control of the motor’s rotational speed.
  • 3. Control System: The control system of the screw compressor monitors and adjusts the speed of the drive motor based on the compressed air or gas demand. It receives input signals from sensors that measure parameters such as pressure, flow rate, or system demand, and sends corresponding signals to the inverter or VFD to regulate the motor speed.
  • 4. Speed Adjustment: When the demand for compressed air or gas decreases, the control system reduces the motor speed by decreasing the frequency and voltage supplied by the inverter or VFD. This results in a lower rotational speed of the screw rotors, reducing the compression capacity and power consumption of the compressor.
  • 5. Energy Efficiency: Variable speed control allows the compressor to match the output to the actual demand, avoiding energy wastage associated with constant-speed compressors. By operating at lower speeds during periods of lower demand, energy consumption can be significantly reduced. This energy-saving capability is particularly advantageous in applications with varying air or gas requirements.
  • 6. Smooth Operation: Variable speed control enables smooth and gradual motor acceleration and deceleration, minimizing mechanical stress on the compressor components and reducing the likelihood of sudden pressure surges or system shutdowns.
  • 7. System Stability: By adjusting the compressor’s speed to match the demand, variable speed control helps maintain stable system pressure and prevents excessive cycling of the compressor. This contributes to improved system performance and longevity.

It’s worth noting that variable speed control is more commonly found in larger screw compressors used in industrial and commercial applications. Smaller screw compressors may utilize fixed-speed motors due to cost considerations or simpler system requirements.

Overall, variable speed control in screw compressors offers precise capacity modulation, improved energy efficiency, enhanced system stability, and reduced maintenance requirements, making it a preferred choice in many applications where compressed air or gas demand fluctuates.

air compressor

Are There Regulations Governing the Use of Screw Compressors in Certain Industries?

Yes, there are regulations governing the use of screw compressors in certain industries. Here’s a detailed explanation:

1. Occupational Safety and Health Administration (OSHA):

In the United States, OSHA sets standards and regulations to ensure the safety and health of workers. While OSHA does not have specific regulations solely focused on screw compressors, they have general requirements that apply to compressed air systems, including screw compressors. These requirements cover aspects such as electrical safety, guarding of moving parts, and proper maintenance practices to ensure worker safety.

2. Environmental Protection Agency (EPA):

The EPA in the United States regulates air emissions to protect the environment and public health. While screw compressors themselves are not directly regulated, if the compressed air is used in processes that emit pollutants, such as in industrial manufacturing, the EPA may have regulations that apply to those specific industries or processes.

3. Industry-Specific Regulations:

Certain industries have specific regulations that govern the use of screw compressors or compressed air systems. These regulations are often aimed at ensuring product quality, safety, and environmental compliance. Some examples include:

a) Food and Beverage Industry: The food and beverage industry often has strict regulations to ensure product safety and prevent contamination. Compressed air used in processes such as packaging, conveying, or powering equipment may need to meet specific quality standards, such as those established by the Food and Drug Administration (FDA) or the Global Food Safety Initiative (GFSI).

b) Pharmaceutical Industry: The pharmaceutical industry has stringent regulations to ensure product quality, safety, and compliance with Good Manufacturing Practices (GMP). Compressed air used in pharmaceutical manufacturing processes must meet specific standards, such as those outlined in the United States Pharmacopeia (USP) or the European Pharmacopoeia (Ph. Eur.).

c) Electronics Industry: The electronics industry often requires clean and dry compressed air to prevent damage to sensitive electronic components. Standards such as ISO 8573, which specify air purity classes for different contaminants in compressed air systems, may be applicable.

d) Automotive Industry: The automotive industry may have regulations and standards related to the use of compressed air in manufacturing processes, such as painting or pneumatic tools. These regulations often focus on worker safety, product quality, and environmental compliance.

It’s important for organizations in these industries to be aware of and comply with the relevant regulations governing the use of screw compressors. Compliance helps ensure the safety of workers, product quality, environmental protection, and overall regulatory compliance.

It’s worth noting that regulations may vary by country and region, so it’s essential to consult the specific regulations applicable to the industry and location where the screw compressors are being used.

air compressor

How Do Screw Compressors Compare to Piston Compressors?

Screw compressors and piston compressors are two common types of compressors used for various applications. Here’s a detailed comparison between these two types:

1. Working Principle:

Screw Compressors: Screw compressors use intermeshing rotors (usually a male and female rotor) to compress air or gas. The rotors rotate in opposite directions, creating compression chambers that gradually reduce in volume, compressing the air or gas. Piston Compressors: Piston compressors, also known as reciprocating compressors, use a piston and cylinder arrangement to compress air or gas. The piston moves back and forth within the cylinder, creating compression by reducing the volume of the chamber.

2. Continuous vs. Intermittent Compression:

Screw Compressors: Screw compressors provide continuous compression, which means they can deliver a steady flow of compressed air or gas without pulsations. The compression process is smooth and continuous, resulting in less vibration and noise. Piston Compressors: Piston compressors provide intermittent compression due to the reciprocating motion of the piston. The compression process is characterized by pulsations, resulting in pressure fluctuations and higher vibration levels compared to screw compressors.

3. Efficiency:

Screw Compressors: Screw compressors are known for their relatively high efficiency. They can achieve higher isothermal and adiabatic efficiency compared to piston compressors. The smooth and continuous compression process in screw compressors minimizes energy losses and heat generation, resulting in improved efficiency. Piston Compressors: Piston compressors have lower overall efficiency compared to screw compressors. The reciprocating motion of the piston leads to energy losses due to friction, heat generation, and pressure pulsations. These factors can reduce the efficiency of piston compressors, especially at higher compression ratios.

4. Size and Portability:

Screw Compressors: Screw compressors are generally more compact and require less space compared to piston compressors of similar capacity. They have a simpler design with fewer moving parts, making them relatively lightweight and easier to install. Screw compressors are often mounted on a skid or integrated into compact packages, offering convenient portability. Piston Compressors: Piston compressors are typically larger and bulkier compared to screw compressors of similar capacity. They have more complex designs with multiple moving parts, including pistons, connecting rods, and valves. The larger size and weight of piston compressors make them less portable and require more installation space.

5. Maintenance and Service:

Screw Compressors: Screw compressors generally require less maintenance compared to piston compressors. They have fewer moving parts, reducing the chances of wear and tear. Screw compressors often have longer service intervals and lower maintenance costs. However, proper lubrication and regular inspections are still necessary to ensure optimal performance and efficiency. Piston Compressors: Piston compressors require regular maintenance due to the higher number of moving parts. Components such as pistons, rings, valves, and bearings may require more frequent inspections, lubrication, and replacements. Maintenance costs and service intervals for piston compressors are typically higher compared to screw compressors.

6. Noise and Vibration:

Screw Compressors: Screw compressors operate with lower noise and vibration levels compared to piston compressors. The continuous and smooth compression process in screw compressors results in reduced vibrations and quieter operation, making them suitable for noise-sensitive environments. Piston Compressors: Piston compressors can generate higher noise levels and vibrations due to the reciprocating motion of the piston and the pulsations during compression. Additional measures, such as sound insulation and vibration dampening, may be required to minimize noise and vibration in piston compressors.

Both screw compressors and piston compressors have their advantages and disadvantages depending on specific application requirements. Screw compressors are favored in applications that demand continuous and efficient compression with minimal pulsations and lower noise levels. Piston compressors are suitable for applications that require intermittent compression, lower initial investment, and simplicity. Factors such as desired flow rate, pressure range, operating conditions, and cost considerations play a crucial role in selecting the appropriate compressor type for a given application.

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editor by CX 2024-03-27

China factory Factory Custom Cheap China Factory Price Totally Oil-Free Hydrogen Compressor air compressor portable

Product Description

Product Name Oil-Free Booster Compressor
Model No BW-3/5/10/15/20/30…
Inlet Pressure 0.4Mpa( G )
Exhaust Pressure 150/200Mpa( G )
Type High Pressure Oil Free
Accessories Filling Manifold, Piston ring, Etc

Oilless High Pressure O2 Compressor Specification
NO Volume Inlet pressure Outlet pressure Type Cooling type
1 1-3m³ 0.3-0.4MPa 15MPa 2 lines 4 stages vertical type Wind
2 4-12m³ 0.3-0.4MPa 15MPa 2 lines 4 stages vertical type Wind
3 13-40m³ 0.3-0.4MPa 15MPa 3 lines 3 stages W type Water
4 13-60m³ 0.2-0.4MPa 15MPa 2 lines 4 stages vertical type Water
5 40-80m³ 0.2-0.4MPa 15MPa 4 lines 4 stages S type Water
6 80-120m³ 0.2-0.4MPa 15MPa 4 lines 4 stages S type Water

If you have compressor inquiry please tell us follows information when you send inquiry:

*Compressor working medium: If single gas ,how many purity ? if mixed gas , what’s gas content lit ?

*Suction pressure(gauge pressure):_____bar

*Exhaust pressure(gauge pressure):_____bar

*Flow rate per hour for compressor: _____Nm³/h

Compressor gas suction temperature:_____ºC

Compressor working hours per day :_____hours

Compressor working site altitude :_____m

Environment temperature : _____ºC

Has cooling water in the site or not ?______

Voltage and frequency for 3 phase :____________

Do not has water vapor or H2S in the gas ?______

Application for compressor?__________

/* March 10, 2571 17:59:20 */!function(){function s(e,r){var a,o={};try{e&&e.split(“,”).forEach(function(e,t){e&&(a=e.match(/(.*?):(.*)$/))&&1

After-sales Service: 1 Year
Warranty: 1 Year
Product Name: Oxygen,Nitrogen Compressor
Gas Type: Oxygen,Nitrogen,Special Gas
Cooling Method: Air Cooling Water Cooling
Application: Filling Cylinder
Customization:
Available

|

air compressor

Can Gas Air Compressors Be Used in Cold Weather Conditions?

Gas air compressors are generally designed to operate in a wide range of environmental conditions, including cold weather. However, there are certain considerations and precautions to keep in mind when using gas air compressors in cold weather conditions. Here’s a detailed explanation:

1. Cold Start-Up:

In cold weather, starting a gas air compressor can be more challenging due to the low temperatures affecting the engine’s performance. It is important to follow the manufacturer’s recommendations for cold start procedures, which may include preheating the engine, using a cold weather starting aid, or ensuring the proper fuel mixture. These measures help facilitate smooth start-up and prevent potential damage to the engine.

2. Fuel Type:

Consider the type of fuel used in the gas air compressor. Some fuels, such as gasoline, can be more susceptible to cold weather issues like vapor lock or fuel line freezing. In extremely cold conditions, it may be necessary to use a fuel additive or switch to a fuel type that is better suited for cold weather operation, such as winter-grade gasoline or propane.

3. Lubrication:

Cold temperatures can affect the viscosity of the oil used in the compressor’s engine. It is important to use the recommended oil grade suitable for cold weather conditions. Thicker oil can become sluggish and impede proper lubrication, while oil that is too thin may not provide adequate protection. Consult the manufacturer’s guidelines for the appropriate oil viscosity range for cold weather operation.

4. Moisture Management:

In cold weather, moisture can condense more readily in the compressed air system. It is crucial to properly drain the moisture from the compressor tank and ensure the air lines are free from any accumulated moisture. Failure to manage moisture can lead to corrosion, freezing of air lines, and decreased performance.

5. Protection from Freezing:

In extremely cold conditions, it is important to protect the gas air compressor from freezing. This may involve using insulated covers or enclosures, providing heat sources in the compressor area, or storing the compressor in a temperature-controlled environment when not in use. Taking measures to prevent freezing helps maintain proper operation and prevents potential damage to the compressor components.

6. Monitoring Performance:

Regularly monitor the performance of the gas air compressor in cold weather conditions. Pay attention to any changes in operation, such as reduced air pressure, increased noise, or difficulties in starting. Promptly address any issues and consult the manufacturer or a qualified technician if necessary.

By considering these factors and taking appropriate precautions, gas air compressors can be effectively used in cold weather conditions. However, it is important to consult the specific guidelines provided by the manufacturer for your compressor model, as they may have additional recommendations or specifications for cold weather operation.

air compressor

Can Gas Air Compressors Be Used in Agriculture?

Yes, gas air compressors can be used in various agricultural applications. Here’s a detailed explanation:

1. Pneumatic Tools and Equipment:

Gas air compressors can power a wide range of pneumatic tools and equipment used in agriculture. These tools include pneumatic drills, impact wrenches, nail guns, staplers, and pneumatic pumps. Gas air compressors provide the necessary compressed air to operate these tools, making various tasks more efficient and convenient on the farm.

2. Irrigation Systems:

Gas air compressors can be used to power irrigation systems in agriculture. They can supply compressed air to operate pneumatic valves, which control the flow of water in irrigation networks. Gas air compressors ensure reliable and efficient operation of irrigation systems, facilitating the distribution of water to crops in a controlled manner.

3. Grain Handling and Storage:

Air compressors play a vital role in grain handling and storage facilities. They are used to power aeration systems that provide airflow to grains stored in silos or bins. Aeration helps control the temperature and moisture levels, preventing spoilage and maintaining grain quality. Gas air compressors provide the airflow necessary for effective aeration in grain storage operations.

4. Cleaning and Maintenance:

In agriculture, gas air compressors are commonly used for cleaning and maintenance tasks. They can power air blowers or air guns to remove dust, debris, or chaff from machinery, equipment, or storage areas. Gas air compressors provide a high-pressure stream of compressed air, facilitating efficient cleaning and maintenance operations.

5. Livestock Operations:

Gas air compressors find applications in livestock operations as well. They can power pneumatic equipment used for animal care, such as pneumatic nail guns for building or repairing livestock enclosures, pneumatic pumps for water distribution, or pneumatic tools for general maintenance tasks.

6. Portable and Versatile:

Gas air compressors are often portable and can be easily transported around the farm, allowing flexibility in agricultural operations. Their versatility makes them suitable for various tasks, from powering tools and equipment in the field to providing compressed air for maintenance or cleaning in different farm locations.

7. Remote Locations:

In agricultural settings where access to electricity may be limited, gas air compressors offer a reliable alternative. They can be powered by gasoline or diesel engines, providing compressed air even in remote areas without electrical infrastructure.

8. Considerations:

When using gas air compressors in agriculture, it is essential to consider factors such as compressor size, capacity, and maintenance requirements. Selecting the right compressor based on the specific needs of the agricultural applications ensures optimal performance and efficiency.

In summary, gas air compressors have various applications in agriculture. They can power pneumatic tools and equipment, operate irrigation systems, facilitate grain handling and storage, assist in cleaning and maintenance tasks, support livestock operations, and offer portability and versatility. Gas air compressors contribute to increased efficiency, convenience, and productivity in agricultural operations.

air compressor

What Safety Precautions Should Be Taken When Operating Gas Air Compressors?

Operating gas air compressors safely is essential to prevent accidents, injuries, and equipment damage. It’s important to follow proper safety precautions to ensure a safe working environment. Here’s a detailed explanation of the safety precautions that should be taken when operating gas air compressors:

1. Read and Follow the Manufacturer’s Instructions:

Before operating a gas air compressor, carefully read and understand the manufacturer’s instructions, user manual, and safety guidelines. Follow the recommended procedures, maintenance schedules, and any specific instructions provided by the manufacturer.

2. Provide Adequate Ventilation:

Gas air compressors generate exhaust fumes and heat during operation. Ensure that the operating area is well-ventilated to prevent the accumulation of exhaust gases, which can be harmful or even fatal in high concentrations. If operating indoors, use ventilation systems or open windows and doors to allow fresh air circulation.

3. Wear Personal Protective Equipment (PPE):

Wear appropriate personal protective equipment (PPE) when operating a gas air compressor. This may include safety glasses, hearing protection, gloves, and sturdy footwear. PPE helps protect against potential hazards such as flying debris, noise exposure, and hand injuries.

4. Perform Regular Maintenance:

Maintain the gas air compressor according to the manufacturer’s recommendations. Regularly inspect the compressor for any signs of wear, damage, or leaks. Keep the compressor clean and free from debris. Replace worn-out parts and components as needed to ensure safe and efficient operation.

5. Preventive Measures for Fuel Handling:

If the gas air compressor is powered by fuels such as gasoline, diesel, or propane, take appropriate precautions for fuel handling:

  • Store fuel in approved containers and in well-ventilated areas away from ignition sources.
  • Refuel the compressor in a well-ventilated outdoor area, following proper refueling procedures and avoiding spills.
  • Handle fuel with caution, ensuring that there are no fuel leaks or spills near the compressor.
  • Never smoke or use open flames near the compressor or fuel storage areas.

6. Use Proper Electrical Connections:

If the gas air compressor requires electrical power, follow these electrical safety precautions:

  • Ensure that the electrical connections and wiring are properly grounded and in compliance with local electrical codes.
  • Avoid using extension cords unless recommended by the manufacturer.
  • Inspect electrical cords and plugs for damage before use.
  • Do not overload electrical circuits or use improper voltage sources.

7. Secure the Compressor:

Ensure that the gas air compressor is securely positioned and stable during operation. Use appropriate mounting or anchoring methods, especially for portable compressors. This helps prevent tipping, vibrations, and movement that could lead to accidents or injuries.

8. Familiarize Yourself with Emergency Procedures:

Be familiar with emergency procedures and know how to shut off the compressor quickly in case of an emergency or malfunction. Have fire extinguishers readily available and know how to use them effectively. Develop an emergency action plan and communicate it to all personnel working with or around the compressor.

It’s crucial to prioritize safety when operating gas air compressors. By following these safety precautions and using common sense, you can minimize the risks associated with compressor operation and create a safer work environment for yourself and others.

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editor by CX 2024-02-21

China Hot selling 10HP 15HP Cheap Price Pm VSD Direct Driven Electric Kompressor Machine Industrial Screw Type Air Compressor portable air compressor

Product Description

High Pressure 30 Bar-40 Bar Pm VSD Two-Stage Rotary Screw Air Compressor for Pet Bottle Blowing Industry

  Our company is a comprehensive screw air compressor manufacturer that engaged in R & D, design, production and sales. It has a plant of 20,000 square meters, including a large production workshop, a comprehensive first-class exhibition hall and a testing laboratory. We have 9 series of products with multiple models. Including Fixed speed air compressor, PM VSD air compressor, PM VSD two-stage air compressor , 4-in-1 air compressor, Oil free water lubrcating air compressor , Diesel portable screw air compressor, Electric portable screw air compressor, Air dryer, Adsorption machine and the matching spare parts. CHINAMFG adheres to the business philosophy of cooperation and mutual benefit to provide a one-stop service for every customer!

Product Parameters&Advantage

                                               

                                              Two Stage PM VSD Screw Air Compressor 

Advantages of Two Stage PM VSD air compressor:

1.Two-stage PM VSD air compressor mainframe is more efficient and more energy-saving. It can save up to 40% energy compared with ordinary industrial frequency machines

2.Two-stage PM VSD replaces single-stage compression, and the displacement is increased by nearly 15%, which can achieve an additional 15% energy saving effect.

3.Two-stage compression reduces the compression ratio of each stage, reduces internal leakage, improves volumetric efficiency,reduces bearing oad, and increases the life of the host.

4.The rotor adopts the latest patented rotor UV profile, which has been refined by more than 20 procedures to ensure the accuracy,reliability, and effectiveness of the rotor profile.

 

Type

Two Stage/Screw/PM VSD
Working Pressure

7 bar, 8 bar, 13 bar, 10 bar

Configuration Stationary
Lubrication Style Lubricated
Voltage 220V/380V/440V/525V
Weight 730-3590kg
Air capacity 3.2M³/Min-39.6M³/Min
Motor power 22KW-185KW
Outlet Diameter DN40/DN65/DN80

OEM/ODM

Accept customization,Voltage/power/horsepower/working pressure can be customized

If you are interested in our products, please feel free to contact us !

Parameters:

Product Description

Company Profile

  ZheJiang CHINAMFG Machinery Manufacturing Co. , Ltd. is located in HangZhou, ZheJiang .CHINAMFG is a comprehensive screw air compressor

manufacturer that engaged in R & D, design, production and sales. It has a plant of 20,000 square meters, including a large production workshop,

a comprehensive first-class exhibition hall and a testing laboratory.

  CHINAMFG has excellent mechanical engineering designers, an experienced staff team and a professional management team. The production

concept focuses on energy-saving and is committed to perfecting and improving the technological process in order to get the core technology

of super frequency energy-saving, achieving the characteristics of mute, durability, power saving and safety.

  The company has 9 series of products with multiple models. Including Fixed speed air compressor, PM VSD air compressor, PM VSD

two-stage air compressor, 4-in-1 air compressor, Oil free water lubrcating air compressor, Diesel portable screw air compressor, Electric

portable screw air compressor, Air dryer, Adsorption machine and the matching spare parts. CHINAMFG adheres to the business philosophy of

cooperation and mutual benefit to provide a one-stop service for every customer!

  CHINAMFG air compressors not only cover the domestic market but also are exported to more than 20 countries and regions such as South

Africa, Australia, Thailand, Russia, Argentina, Canada and so on. CHINAMFG products have won a good reputation from users for their excellent

quality and style. The company has always adhered to the concept of quality first, service first and dedication to providing every customer with

excellent products and meticulous after-sales service!

  CHINAMFG warmly welcome customers to visit our factory and establish a wide range of cooperation!

Certifications

Exhibition

Packaging & Shipping

Customized package

FAQ

Q1: Are you factory or trade company?  

A1: We are factory.

Q2: What the exactly address of your factory? 
A2: Our Factory is Located in Xihu (West Lake) Dis. County, HangZhou CityZheJiang  Province, China.

Q3: Will you provide spare parts of your products? 
A3: Yes, We provide all parts to customer, so you can do repair or maintenance without trouble.

Q4: Can you accept OEM orders? 
A4: Yes, with professional design team, OEM orders are highly welcome.

Q5: How long will you take to arrange production?
A5: Immediate delivery for stock products.380V 50HZ we can delivery the goods within 3-15 days. Other voltage or other color we will delivery within 25-30 days.

Q6: Warranty terms of your machine?
A6: Two years warranty for the machine and technical support always according to your needs.

Q7: Can you provide the best price?
A7:According to your order, we will provide you the best price.

  /* March 10, 2571 17:59:20 */!function(){function s(e,r){var a,o={};try{e&&e.split(“,”).forEach(function(e,t){e&&(a=e.match(/(.*?):(.*)$/))&&1

After-sales Service: 24 Hours
Warranty: 2 Years
Lubrication Style: Lubricated
Cooling System: Air Cooling
Power Source: AC Power
Cylinder Position: Vertical
Customization:
Available

|

air compressor

How Does Variable Speed Control Work in Screw Compressors?

Variable speed control in screw compressors is a technology that allows the compressor’s rotational speed to be adjusted according to the compressed air or gas demand. This control method offers several benefits in terms of energy efficiency and system performance. Here’s a detailed explanation:

Variable speed control, also known as variable frequency drive (VFD) or inverter control, works by adjusting the speed of the compressor’s drive motor. The drive motor is typically an electric motor that powers the rotation of the compressor’s screw rotors.

The key components and operation of variable speed control in screw compressors are as follows:

  • 1. Drive Motor: The drive motor is connected to the compressor’s screw rotors and provides the rotational power required for compression. It is an electric motor capable of operating at variable speeds.
  • 2. Inverter or Variable Frequency Drive (VFD): The inverter or VFD is an electronic device that controls the speed of the drive motor. It converts the incoming electrical power into adjustable frequency and voltage, allowing precise control of the motor’s rotational speed.
  • 3. Control System: The control system of the screw compressor monitors and adjusts the speed of the drive motor based on the compressed air or gas demand. It receives input signals from sensors that measure parameters such as pressure, flow rate, or system demand, and sends corresponding signals to the inverter or VFD to regulate the motor speed.
  • 4. Speed Adjustment: When the demand for compressed air or gas decreases, the control system reduces the motor speed by decreasing the frequency and voltage supplied by the inverter or VFD. This results in a lower rotational speed of the screw rotors, reducing the compression capacity and power consumption of the compressor.
  • 5. Energy Efficiency: Variable speed control allows the compressor to match the output to the actual demand, avoiding energy wastage associated with constant-speed compressors. By operating at lower speeds during periods of lower demand, energy consumption can be significantly reduced. This energy-saving capability is particularly advantageous in applications with varying air or gas requirements.
  • 6. Smooth Operation: Variable speed control enables smooth and gradual motor acceleration and deceleration, minimizing mechanical stress on the compressor components and reducing the likelihood of sudden pressure surges or system shutdowns.
  • 7. System Stability: By adjusting the compressor’s speed to match the demand, variable speed control helps maintain stable system pressure and prevents excessive cycling of the compressor. This contributes to improved system performance and longevity.

It’s worth noting that variable speed control is more commonly found in larger screw compressors used in industrial and commercial applications. Smaller screw compressors may utilize fixed-speed motors due to cost considerations or simpler system requirements.

Overall, variable speed control in screw compressors offers precise capacity modulation, improved energy efficiency, enhanced system stability, and reduced maintenance requirements, making it a preferred choice in many applications where compressed air or gas demand fluctuates.

air compressor

What Is the Role of Air Dryers in Screw Compressor Systems?

Air dryers play a crucial role in screw compressor systems by removing moisture from the compressed air. Here’s a detailed explanation:

Air contains moisture in the form of water vapor, which can be problematic when compressed. As air is compressed, its temperature rises, causing the moisture to condense into liquid water. This moisture can cause various issues within the compressed air system, including equipment corrosion, decreased efficiency, and compromised air quality.

The role of air dryers in screw compressor systems is to remove this moisture from the compressed air, ensuring dry and clean air for reliable and efficient operation. Here are the key functions and benefits of air dryers:

1. Moisture Removal:

Air dryers extract moisture from the compressed air, reducing its dew point temperature. By lowering the dew point, the risk of condensation and subsequent issues, such as corrosion and water damage to pneumatic equipment, is minimized. Dry air is essential for maintaining the integrity and longevity of the system components.

2. Protection of Pneumatic Equipment:

Moisture in the compressed air can negatively impact pneumatic equipment, including valves, actuators, and air tools. It can cause rust, corrosion, and malfunctioning of these components. By using air dryers to remove moisture, the risk of damage to the equipment is significantly reduced, extending their lifespan and ensuring reliable performance.

3. Prevention of Contamination:

Moisture in compressed air can also lead to the growth of microorganisms, such as bacteria and fungi, within the system. These contaminants can contaminate the air and pose a health risk or cause product spoilage in sensitive applications, such as food and pharmaceutical industries. Air dryers help prevent the growth of these contaminants, ensuring clean and safe compressed air.

4. Enhanced Efficiency:

Dry compressed air improves the efficiency of the overall system. Moisture in the air can cause pressure drop issues, affecting the performance of pneumatic tools and equipment. Dry air allows for optimal operation, reducing energy consumption and enhancing system efficiency.

5. Reduced Maintenance and Downtime:

Moisture-related issues can lead to increased maintenance requirements and system downtime. By removing moisture with air dryers, the need for frequent maintenance and repairs caused by water-related problems is minimized. This helps in reducing costly downtime and improving productivity.

There are different types of air dryers commonly used in screw compressor systems:

a) Refrigerated Air Dryers: These dryers cool the compressed air, causing moisture to condense and separate from the air stream. The condensed water is then drained from the system, leaving behind dry air.

b) Desiccant Air Dryers: These dryers utilize desiccant materials, such as silica gel or activated alumina, to adsorb moisture from the compressed air. The desiccant material undergoes a regeneration process to remove the accumulated moisture, ensuring continuous drying of the compressed air.

c) Membrane Air Dryers: These dryers use permeable membranes to selectively remove moisture from the compressed air. The membranes allow water vapor to pass through while retaining dry air, effectively drying the compressed air stream.

The selection of the appropriate air dryer depends on factors such as the desired level of moisture removal, the specific application requirements, and the operating conditions of the screw compressor system.

In summary, air dryers play a vital role in screw compressor systems by removing moisture from the compressed air. They protect equipment, prevent contamination, enhance efficiency, and reduce maintenance and downtime. By ensuring dry and clean compressed air, air dryers contribute to the longevity, reliability, and optimal performance of the entire compressed air system.

air compressor

What Is the Efficiency of Screw Compressors?

The efficiency of screw compressors can vary depending on various factors, including the design, operating conditions, and maintenance. Here’s a detailed explanation of the efficiency of screw compressors:

1. Isothermal Efficiency:

Isothermal efficiency refers to the ideal efficiency of a compressor operating under isothermal conditions. In reality, screw compressors experience temperature rise during compression, and therefore, they do not achieve isothermal efficiency. The compression process in screw compressors is considered to be relatively close to isothermal compared to other compressor types, such as reciprocating compressors. This is due to the continuous and smooth flow of air or gas through the compression chamber, which helps in minimizing temperature differences.

2. Adiabatic Efficiency:

Adiabatic efficiency refers to the actual efficiency of a compressor, taking into account the heat generated during compression. Screw compressors typically have higher adiabatic efficiency compared to reciprocating compressors. The helical design of the rotors and the presence of intermeshing lobes allow for efficient compression with minimal energy loss. The adiabatic efficiency of a screw compressor can be influenced by factors such as the compression ratio, rotational speed, and discharge pressure.

3. Overall Efficiency:

The overall efficiency of a screw compressor takes into account various factors, including mechanical losses, power consumption, and auxiliary power requirements. Mechanical losses can occur due to friction between the rotors, bearings, and other moving parts. Well-maintained screw compressors with properly lubricated components and well-aligned rotors can minimize mechanical losses and improve overall efficiency. Power consumption is another factor affecting efficiency, and it can vary depending on the size, design, and operating conditions of the compressor.

4. Energy Efficiency:

Energy efficiency is an important aspect of screw compressors. It relates to the ability of the compressor to convert electrical energy into compressed air with minimal energy waste. Energy-efficient screw compressors are designed to optimize the compression process, reduce power consumption, and maximize output for a given input. Variable Speed Drive (VSD) screw compressors, for example, can adjust the rotational speed to match the compressed air demand, resulting in improved energy efficiency and significant energy savings.

It’s important to note that the efficiency of screw compressors can vary depending on the specific model, design features, and operating conditions. Regular maintenance, including proper lubrication, cleaning, and component inspection, is crucial for maintaining high efficiency levels. Additionally, selecting the right size and type of screw compressor for the intended application is essential to achieve optimal efficiency and performance.

In summary, screw compressors are known for their relatively high efficiency compared to other compressor types. While they may not achieve perfect isothermal efficiency, their adiabatic efficiency, overall efficiency, and energy efficiency make them suitable for a wide range of industrial applications.

China Hot selling 10HP 15HP Cheap Price Pm VSD Direct Driven Electric Kompressor Machine Industrial Screw Type Air Compressor   portable air compressorChina Hot selling 10HP 15HP Cheap Price Pm VSD Direct Driven Electric Kompressor Machine Industrial Screw Type Air Compressor   portable air compressor
editor by CX 2024-02-08

China Hot selling 2022 High Pressure 150 Cfm to 1800cfm 7bar to 35bar Mining Drilling Rotary Diesel Screw Portable Air Compressor air compressor price

Product Description

Mature Factory Similar CHINAMFG Trailer Mounted Portable Movable Diesel Screw Air Compressor 200-1800 cfm For Drilling Machine

High Pressure Movable Screw Air Compressor for Drilling Rig

Mobile Diesel Powered Air Compressor 25 Bar for Well Drilling

Packaging & Shipping

FAQ

Q7: Can you give us your best price
 A7: Yes, of course. And we can offer more stable quality products at a suitable price.

 Q8: Please send price list ? 
 A8: OK, could you please provide us with your way of communication?

 Q9: Can you send the real picture of the product? 
 A9: Yes,of course,you please check the pictures and videos,just let me know how many you need ?

 Q10: Would it be convenient to hand out your product manual? 
 A10: Hello,friend,this is our catalog,and the model SUPC560-25-T is the most hot sell,do you need to more introduction?

 

/* March 10, 2571 17:59:20 */!function(){function s(e,r){var a,o={};try{e&&e.split(“,”).forEach(function(e,t){e&&(a=e.match(/(.*?):(.*)$/))&&1

Lubrication Style: Lubricated
Cooling System: Air Cooling
Power Source: Diesel Engine
Cylinder Position: Vertical
Structure Type: Closed Type
Installation Type: Movable Type
Customization:
Available

|

air compressor

What Industries Commonly Use Screw Compressors?

Screw compressors are widely used in various industries due to their efficiency, reliability, and versatility. Here’s a detailed overview of the industries that commonly utilize screw compressors:

  • 1. Manufacturing: Screw compressors find extensive use in manufacturing industries such as automotive, aerospace, electronics, and appliances. They are employed for applications such as powering pneumatic tools, operating production lines, providing compressed air for painting, and controlling automated processes.
  • 2. Oil and Gas: The oil and gas industry extensively utilizes screw compressors for various purposes. They are employed in upstream operations for natural gas gathering, gas lift systems, and wellhead compression. In downstream operations, screw compressors are used in refining processes, gas transmission, and storage facilities.
  • 3. Chemical and Petrochemical: Screw compressors play a crucial role in chemical and petrochemical industries. They are used for compressing gases in chemical reactions, providing instrument air for control systems, powering pneumatic conveying systems, and handling various process gases in refining and production processes.
  • 4. Food and Beverage: Screw compressors are employed in the food and beverage industry for applications such as refrigeration, freezing, and air supply for packaging processes. They help maintain optimal temperature and humidity conditions, ensuring the quality and safety of food and beverage products.
  • 5. Pharmaceutical and Healthcare: Screw compressors are utilized in pharmaceutical manufacturing facilities, research laboratories, and healthcare institutions. They provide clean, oil-free compressed air for critical processes, such as pharmaceutical production, medical device manufacturing, and laboratory analysis. High-quality compressed air is essential to meet stringent quality and regulatory standards in these industries.
  • 6. Power Generation: Screw compressors find applications in power generation facilities, including gas turbine power plants, combined heat and power (CHP) systems, and cogeneration plants. They are used for inlet air compression, fuel gas boosting, and other compressed air requirements in power generation processes.
  • 7. Construction and Mining: Screw compressors are widely used in construction and mining industries for powering pneumatic tools, drilling equipment, and material handling systems. They provide the necessary compressed air for efficient and reliable operation in demanding construction and mining environments.
  • 8. Municipal and Wastewater Treatment: Screw compressors are utilized in municipal water treatment and wastewater treatment plants. They play a vital role in aeration processes, where compressed air is introduced into water or wastewater to promote biological treatment and ensure effective removal of contaminants.
  • 9. Printing and Packaging: Screw compressors are employed in printing and packaging industries for applications such as air drying, air cushioning, and powering pneumatic systems in printing presses and packaging machinery. They ensure consistent and reliable compressed air supply for efficient production processes.
  • 10. Automotive and Transportation: Screw compressors are used in automotive and transportation industries for applications such as air conditioning systems in vehicles, pneumatic braking systems, and compressed air supply for tire inflation and maintenance.

These are just a few examples, and screw compressors find applications in numerous other industries, including textiles, plastics, pulp and paper, steel and metal fabrication, electronics manufacturing, and more. The versatility and reliability of screw compressors make them a popular choice across a wide range of industrial sectors.

air compressor

What Is the Impact of Ambient Temperature on Screw Compressor Performance?

Ambient temperature has a significant impact on the performance of screw compressors. Here’s a detailed explanation:

Screw compressors, like other types of compressors, rely on the surrounding environment to dissipate heat and maintain optimal operating conditions. The ambient temperature directly affects the compressor’s efficiency, capacity, power consumption, and overall performance.

Here are the key ways in which ambient temperature influences screw compressor performance:

1. Cooling Efficiency:

The cooling efficiency of a screw compressor is affected by the temperature difference between the compressed gas and the ambient air. As the ambient temperature increases, the temperature difference decreases, making it more challenging to transfer heat effectively. This can lead to higher discharge temperatures and reduced cooling efficiency, potentially impacting the compressor’s overall capacity and performance.

2. Capacity and Power Consumption:

Higher ambient temperatures can decrease the capacity of a screw compressor. Compressors are typically designed and rated based on specific operating conditions, including a defined ambient temperature range. When the ambient temperature exceeds the design limits, the compressor may experience reduced volumetric efficiency, resulting in a decrease in its overall capacity. Additionally, the compressor may require more power to maintain the desired pressure levels, leading to increased power consumption.

3. Heat Recovery:

In some applications, screw compressors are equipped with heat recovery systems to utilize the waste heat generated during compression. The effectiveness of heat recovery is influenced by the ambient temperature. Higher ambient temperatures can reduce the temperature differential available for heat exchange, limiting the potential for heat recovery and decreasing the overall system efficiency.

4. Lubrication and Cooling:

Screw compressors rely on lubrication systems to reduce friction and prevent wear between moving parts. The ambient temperature affects the performance of the lubricant. In high ambient temperatures, the lubricant may experience decreased viscosity, potentially leading to inadequate lubrication and increased wear on compressor components. Similarly, the cooling system of the compressor, including fans and heat exchangers, may be less effective in higher ambient temperatures, impacting the compressor’s ability to dissipate heat.

5. Operating Envelope:

Screw compressors have specified operating envelopes, which define the acceptable range of operating conditions, including ambient temperature. Operating the compressor outside its designed ambient temperature range can result in reduced reliability, increased maintenance requirements, and potential system failures. It is crucial to adhere to the manufacturer’s guidelines and ensure that the compressor operates within the recommended ambient temperature limits.

6. Control and Protection:

Modern screw compressors often feature advanced control and protection systems that monitor various parameters, including ambient temperature. These systems may adjust compressor operation, such as modulation of capacity or cooling strategies, to optimize performance and protect the compressor from operating outside safe limits. Understanding the impact of ambient temperature allows for appropriate adjustments and settings to maintain reliable and efficient compressor operation.

It’s important to note that different compressor models and manufacturers may have specific performance characteristics and operating limits. Therefore, consulting the manufacturer’s documentation and guidelines for the particular screw compressor in use is essential.

In summary, ambient temperature significantly affects the performance of screw compressors. Higher ambient temperatures can reduce cooling efficiency, decrease compressor capacity, increase power consumption, and impact lubrication and cooling systems. Adhering to recommended operating conditions and considering ambient temperature limitations are crucial for ensuring optimal performance, reliability, and longevity of screw compressors.

air compressor

Are There Different Types of Screw Compressors?

Yes, there are different types of screw compressors available, catering to various application requirements. Here’s an overview of the main types:

1. Oil-Injected Screw Compressors:

Oil-injected screw compressors, also known as lubricated screw compressors, are the most common type. These compressors require the injection of a small amount of lubricating oil into the compression chamber. The oil serves multiple purposes, including lubrication, cooling, sealing, and reducing friction between the rotors. Oil-injected screw compressors are widely used in industrial applications where a small amount of oil in the compressed air is acceptable.

2. Oil-Free Screw Compressors:

Oil-free screw compressors are designed to operate without the need for oil lubrication. These compressors incorporate specialized rotor coatings, such as PTFE (polytetrafluoroethylene) or other non-stick materials, to reduce friction and eliminate the need for oil. Oil-free screw compressors are preferred in applications that require oil-free and contaminant-free compressed air. Industries like food and beverage, pharmaceuticals, electronics, and others often rely on oil-free screw compressors to ensure the purity of the compressed air.

3. Variable Speed Drive (VSD) Screw Compressors:

VSD screw compressors, also known as variable frequency drive (VFD) screw compressors, are equipped with a variable speed drive system. This system allows the compressor to adjust the rotational speed of the motor and, consequently, the speed of the screw rotors. By varying the speed, VSD screw compressors can closely match the compressed air or gas demand, resulting in energy savings and improved efficiency. VSD screw compressors are particularly beneficial in applications with varying air demand, as they can adapt their output accordingly.

4. Two-Stage Screw Compressors:

Two-stage screw compressors consist of two sets of rotors arranged in series. The first stage compresses the air or gas to an intermediate pressure, and the second stage further compresses it to the desired final pressure. Two-stage screw compressors are commonly used in applications that require higher discharge pressures. By dividing the compression into two stages, these compressors can achieve higher efficiency and improved performance in high-pressure applications.

5. Water-Injected Screw Compressors:

Water-injected screw compressors, also known as liquid-injected screw compressors, utilize water or a water-glycol mixture as a sealing and cooling medium. The water injection helps in sealing the compression chamber and reduces the discharge temperature, enhancing the compressor’s efficiency. Water-injected screw compressors are often used in applications where oil contamination is a concern, such as in the pharmaceutical and food processing industries.

Each type of screw compressor has its own advantages and is suitable for specific applications. The choice of the screw compressor type depends on factors such as the desired level of air purity, the need for oil-free operation, energy efficiency requirements, and the operating conditions of the application.

China Hot selling 2022 High Pressure 150 Cfm to 1800cfm 7bar to 35bar Mining Drilling Rotary Diesel Screw Portable Air Compressor   air compressor priceChina Hot selling 2022 High Pressure 150 Cfm to 1800cfm 7bar to 35bar Mining Drilling Rotary Diesel Screw Portable Air Compressor   air compressor price
editor by CX 2024-01-22

China Standard Heavy Duty High Pressure Diesel Engine Movable Portable Screw Air Compressor Price for Mining arb air compressor

Product Description

Product Description

 

1.Gas Control System: It is simple and reliable. Inlet rate from 0 to 100% and be adjusted automatically depending on the gas consumption. Automatically adjust the engine throttle to save diesel fuel.

2.Microcomputor Intelligent Control: Air compressor discharge pressure, exhaust gas temperature, engine speed, oil pressure, water temperature and fuel tank level operating parameters with automatic alarm and shutdown protection.

3.Multi-Stage Air Filter and Large Oil-Water Cooler: It is not only suitable for dusty work environment, but it is suitable for high temperature and high altitude environment.

4.Parts and Components: They can be maintained within the accesible range which is convenient and easy.

5.Covenient: Easy to move in rough terrain.Each compressor has lifting rings on the top for safe hoisting and transportation.

Product Parameters

 

Single Stage Compression Portable Diesel Screw Air Compressor
Model Capacity Pressure Diesel engine type Weight Dimensions
m3/min bar KGS L×W×H mm
SYC-3/7 2.8 7 32kw 1000 2200*1560*1400
SYC-5/7 5 7 41KW 1100 2821X1470X1361
SYC-6/8 6 8 55kW 1400 3750×1920×1700
SYC-7/8 7 8 4D80-K20,58kW 1400 3750×1920×1700
SYC-8/7 8 7 65kw 1400 3750×1920×1700
SYC-8/8 8 8 65kw 1400 3750×1920×1700
SYC-9/8 8.8 8 75kW 1600 3750×1920×1700
SYC-10/7 10 7 YC4D95Z-K20,70kW 1900 3900×1920×1700
SYC-8.5/14 8.5 14 4BTA3.9-C125,93kW 1900 3900×1920×1900
SYC-10/10 10 10 4BTA3.9-C125,93kW 1900 3900×1920×1900
SYC-10/13 10 13 4BTA3.9-C125,93kW 2050 4080×1980×2350
SYC-13/10 13 10 4BTA3.9-C125,93kW 2050 4080×1980×2350
SYC-12/7 12 7 4BTA3.9-C125,93kW 2050 3900×1980×1900
SYC-12/12 12 12 6BTA5.9-C180,132kW 2380 4080×1980×2350
SYC-12/13 12 13 6BTA5.9-C180,132kW 2750 4080×1980×2350
SYC-13/13 13 13 6BTA5.9-C180,132kW 2750 3450×1520×2220
SYC-17/7 17 7 6BTA5.9-C180,132kW 3350 3380×1640×2350
SYC-15/13 15 13 YC6A240-20,177kW 3350 3380×1650×2500
SYC-16/13 16 13 6CTA8.3-C215,158kW 3350 3980×1800×2450
SYC-13/17 13 17 6CTA8.3-C215,158kW 3400 3780×1980×2350
SYC-17/14.5 17 14.5 6CTA8.3-C260,194kW 3400 3980×1800×2450
SYC-19/14.5 19 14.5 6CTA8.3-C260,194kW 3400 3980×1800×2450
SYC-18/17 18 17 6CTA8.3-C260,194kW 3400 3980×1800×2450
SYC-20/13 20 13 6CTA8.3-C260,194kW 3400 3980×1800×2450
SYC-22/8 22 8 6CTA8.3-C260,194kW 4000 4580×1950×2600
SYC-26/8 26 8 6CTA8.3-C260,194kW 4000 4580×1950×2600
SYC-22/14 22 14 6CTA8.9-C325, 239kW 4500 4580×1950×2600
SYC-27/10 27 10 6CTA8.9-C325, 239kW 5000 4600×1950×2850
SYC-30/10 30 10 6CTA8.9-C325, 240kW 5000 4600×1950×2850
Two Stages Compression Portable Diesel Screw Air Compressor
SYC-19.5/19 19.5 19 6CTA8.3-C260,194KW 3700 3650*1800*2500
SYC-22/20 22 20 6LTA8.9-C360,265KW 4500 4600*1950*2850
SYC-26/20 26 20 6LTA8.9-C360,265KW 4850 4600*1950*2850
SYC-27/22 27 22 NTA855-P400 5000 4600*1950*2850
SYC-26/25 26 25 QSZ13-C500 5100 4700*2100*2500
SYC-21/35 21 35 QSZ13-C500 5100 4700*2100*2500
SYC-33/25 33 25 QSZ13-C550 5200 4700*2100*2500
SYC-26/35 26 35 QSZ13-C550 5200 4700*2100*2500

Company Profile

 

After Sales Service

Our service
1.Pre-sale service:
Act as a good adviser and assistant of clients enable them to get rich and generous returns on their investments .
1.Select equipment model.
2.Design and manufacture products according to client’s special requirement ; 
2.Services during the sale:
1.Pre-check and accept products ahead of delivery .
2. Help clients to draft solving plans .
3.After-sale services:
Provide considerate services to minimize clients’ worries.
1.Complete After-sales service,professional engineers available to service machinery at home or oversea.
(On-site service requires the customer to bear the cost)
2. 24 hours technical support by e-mail.
3.Other essential technological service.

Other Products

FAQ

Q1: What is the rotor speed for the air end?
A1: 2980rmp.
Q2: What’s your lead time?
A2: usually, 5-7 days. (OEM orders: 15days)
Q3: Can you offer water cooled air compressor?
A3: Yes, we can (normally, air cooled type).
Q4: What’s the payment term?
A4: T/T, L/C, Western Union, etc. Also we could accept USD, RMB, and other currency.
Q5: Do you accept customized voltage?
A5: Yes. 380V/50Hz/3ph, 380V/60Hz/3ph, 220V/50Hz/3ph, 220V/60Hz/3ph, 440V/50Hz/3ph, 440V/60Hz/3ph, or as per your requests.
Q6: What is your warranty for air compressor?
A6: One year for the whole air compressor(not including the consumption spare parts) and technical supports can be provided according to your needs.
Q7: Can you accept OEM orders?
A7: Yes, OEM orders are warmly welcome.
Q8: How about your customer service and after-sales service?
A8: 24hrs on-line support, 48hrs problem solved promise.
Q9: Do you have spare parts in stock?
A9: Yes, we do.
Q10: What kind of initial lubrication oil you used in air compressor?
A10: TOTAL 46# mineral oil.

/* March 10, 2571 17:59:20 */!function(){function s(e,r){var a,o={};try{e&&e.split(“,”).forEach(function(e,t){e&&(a=e.match(/(.*?):(.*)$/))&&1

After-sales Service: Online Technical Support
Warranty: 1 Year
Lubrication Style: Lubricated
Customization:
Available

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Shipping Cost:

Estimated freight per unit.







about shipping cost and estimated delivery time.
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Full Payment
Currency: US$
Return&refunds: You can apply for a refund up to 30 days after receipt of the products.

air compressor

What Safety Precautions Should Be Taken When Operating Screw Compressors?

When operating screw compressors, it is important to follow specific safety precautions to ensure the well-being of personnel and prevent potential accidents. Here’s a detailed explanation:

1. Familiarize Yourself with the Equipment:

  • Before operating a screw compressor, thoroughly read and understand the manufacturer’s instructions, safety guidelines, and operating procedures. Familiarize yourself with the specific features, controls, and safety devices of the compressor.

2. Wear Appropriate Personal Protective Equipment (PPE):

  • Wear the necessary PPE, such as safety glasses, hearing protection, gloves, and appropriate clothing, when operating the compressor. PPE helps protect against potential hazards, including flying debris, noise, and contact with hot or moving parts.

3. Ensure Proper Ventilation:

  • Operate the screw compressor in a well-ventilated area to prevent the buildup of potentially harmful gases or fumes. Ensure that the compressor’s intake and exhaust vents are not obstructed, allowing for adequate airflow.

4. Compressor Location:

  • Position the compressor on a stable and level surface to prevent tipping or instability during operation. Ensure that the compressor is located away from flammable materials, heat sources, or sources of ignition.

5. Electrical Safety:

  • Follow electrical safety guidelines and ensure that the compressor is properly grounded. Avoid using damaged or frayed electrical cords and ensure that the electrical connections are secure.

6. Lockout/Tagout Procedures:

  • Before performing any maintenance or repair tasks on the compressor, follow lockout/tagout procedures to isolate electrical power and prevent accidental startup. Lockout/tagout procedures help protect against unexpected energization of the compressor or its components.

7. Pressure Relief:

  • Before performing any maintenance tasks or opening the compressor, ensure that all pressure has been relieved from the system. Follow proper procedures for depressurizing the compressor and associated piping to avoid sudden releases of pressure.

8. Hot Surfaces:

  • Be cautious of hot surfaces, such as compressor casings, piping, or discharge components. Allow sufficient cooling time before touching or performing maintenance tasks on hot surfaces to avoid burns.

9. Maintenance and Inspection:

  • Adhere to the manufacturer’s recommended maintenance schedule and perform regular inspections of the compressor. Replace any worn or damaged components promptly to prevent potential hazards or malfunctions.

10. Emergency Procedures:

  • Be familiar with emergency procedures, including how to shut down the compressor in case of an emergency, how to respond to leaks or spills, and how to handle fire or electrical incidents. Have emergency contact information readily available.

11. Training and Qualified Personnel:

  • Ensure that operators and maintenance personnel are adequately trained in the safe operation and maintenance of screw compressors. Only allow qualified personnel to perform maintenance or repair tasks.

It is essential to consult the specific safety guidelines provided by the manufacturer of the screw compressor as they may include additional precautions or recommendations.

In summary, when operating screw compressors, it is important to familiarize yourself with the equipment, wear appropriate PPE, ensure proper ventilation, follow electrical safety measures, implement lockout/tagout procedures, be cautious of hot surfaces, perform regular maintenance and inspections, and be prepared with emergency procedures. By following these safety precautions, the risk of accidents or injuries can be minimized, ensuring a safe working environment when operating screw compressors.

air compressor

Can Screw Compressors Be Used for Medical Air Supply?

Yes, screw compressors can be used for medical air supply. Here’s a detailed explanation:

Screw compressors are commonly employed in various applications, including medical air supply systems. Medical air is a critical utility in healthcare facilities, used for various purposes such as respiratory therapy, anesthesia, and surgical tools. Here are some key points to consider:

1. Reliability and Efficiency:

Screw compressors are known for their reliability and efficiency. They can provide a continuous and reliable source of compressed air, ensuring a stable supply for medical applications. The rotary screw design allows for smooth and efficient compression, minimizing energy consumption and maximizing system performance.

2. Oil-Free Operation:

In medical applications, it is crucial to ensure the purity of the compressed air. Screw compressors can be designed and certified to provide oil-free air, eliminating the risk of oil contamination in the medical air supply. Oil-free screw compressors incorporate specialized sealing systems and filtration to prevent oil carryover, making them suitable for medical air applications.

3. Air Quality Standards:

Medical air must meet specific air quality standards to ensure patient safety and treatment effectiveness. Standards such as the European Pharmacopoeia (Ph. Eur.) or the United States Pharmacopeia (USP) define the required purity levels for medical air, including limits on particulate matter, moisture content, and microbial contamination. Screw compressors can be equipped with appropriate filtration and purification systems to meet these standards.

4. Integrated Drying and Filtration:

Some screw compressors designed for medical air applications incorporate integrated drying and filtration systems. These systems remove moisture and contaminants from the compressed air, ensuring it meets the required quality standards. Integrated drying systems can include refrigerated dryers, desiccant dryers, or membrane dryers, depending on the specific needs of the medical air supply system.

5. Redundancy and Backup Systems:

Medical air supply systems often require a high level of reliability and continuity. Screw compressors can be configured with redundancy and backup systems to ensure uninterrupted supply. Multiple compressors can be installed in parallel, with automatic switching mechanisms to maintain supply in case of a compressor failure or maintenance activities.

6. Monitoring and Alarms:

Modern screw compressors used in medical air supply systems often feature advanced monitoring capabilities. They can continuously monitor and record key parameters such as pressure, temperature, and system performance. Alarms and alerts can be configured to notify operators or maintenance personnel in case of abnormal conditions or potential issues with the compressor.

7. Compliance with Standards and Regulations:

When using screw compressors for medical air supply, it is essential to comply with relevant standards and regulations. These may include medical device regulations, electrical safety standards, and guidelines specific to medical gas systems. Compliance ensures that the medical air supply system meets the necessary safety and quality requirements.

In summary, screw compressors can be used for medical air supply, providing reliable and efficient compressed air for various medical applications. With their reliability, oil-free operation, adherence to air quality standards, integrated drying and filtration capabilities, and the ability to incorporate redundancy and monitoring features, screw compressors are well-suited for medical air supply systems in healthcare facilities.

air compressor

What Is the Efficiency of Screw Compressors?

The efficiency of screw compressors can vary depending on various factors, including the design, operating conditions, and maintenance. Here’s a detailed explanation of the efficiency of screw compressors:

1. Isothermal Efficiency:

Isothermal efficiency refers to the ideal efficiency of a compressor operating under isothermal conditions. In reality, screw compressors experience temperature rise during compression, and therefore, they do not achieve isothermal efficiency. The compression process in screw compressors is considered to be relatively close to isothermal compared to other compressor types, such as reciprocating compressors. This is due to the continuous and smooth flow of air or gas through the compression chamber, which helps in minimizing temperature differences.

2. Adiabatic Efficiency:

Adiabatic efficiency refers to the actual efficiency of a compressor, taking into account the heat generated during compression. Screw compressors typically have higher adiabatic efficiency compared to reciprocating compressors. The helical design of the rotors and the presence of intermeshing lobes allow for efficient compression with minimal energy loss. The adiabatic efficiency of a screw compressor can be influenced by factors such as the compression ratio, rotational speed, and discharge pressure.

3. Overall Efficiency:

The overall efficiency of a screw compressor takes into account various factors, including mechanical losses, power consumption, and auxiliary power requirements. Mechanical losses can occur due to friction between the rotors, bearings, and other moving parts. Well-maintained screw compressors with properly lubricated components and well-aligned rotors can minimize mechanical losses and improve overall efficiency. Power consumption is another factor affecting efficiency, and it can vary depending on the size, design, and operating conditions of the compressor.

4. Energy Efficiency:

Energy efficiency is an important aspect of screw compressors. It relates to the ability of the compressor to convert electrical energy into compressed air with minimal energy waste. Energy-efficient screw compressors are designed to optimize the compression process, reduce power consumption, and maximize output for a given input. Variable Speed Drive (VSD) screw compressors, for example, can adjust the rotational speed to match the compressed air demand, resulting in improved energy efficiency and significant energy savings.

It’s important to note that the efficiency of screw compressors can vary depending on the specific model, design features, and operating conditions. Regular maintenance, including proper lubrication, cleaning, and component inspection, is crucial for maintaining high efficiency levels. Additionally, selecting the right size and type of screw compressor for the intended application is essential to achieve optimal efficiency and performance.

In summary, screw compressors are known for their relatively high efficiency compared to other compressor types. While they may not achieve perfect isothermal efficiency, their adiabatic efficiency, overall efficiency, and energy efficiency make them suitable for a wide range of industrial applications.

China Standard Heavy Duty High Pressure Diesel Engine Movable Portable Screw Air Compressor Price for Mining   arb air compressorChina Standard Heavy Duty High Pressure Diesel Engine Movable Portable Screw Air Compressor Price for Mining   arb air compressor
editor by CX 2024-01-15

China high quality China Manufacturer of Industrial Heavy Duty Movable Portable Diesel Engine Direct Driven Rotary Screw Type Air Compressors for Construction air compressor price

Product Description

 

Model Machine Diesel Engine
Free Air Delivery Normal Working Dimensions Weight  Manufacturer  Model Rated
 Pressure (without towbar)         power
  m3/min CFM bar(g) psig L*W*H(mm) kg KW
WZSCY-3.2/8 3.40  120 8 116 2263*1590*1543 900 Xihu (West Lake) Dis. YSD490G 32
WZSCY-4/13 4.00  141 13 189 2570*1860*1720 1200 Cummins QFS2.8-C60 45
WZSCY-5/7 5.55  196 7 102 2570*1860*1720 1200 QFS2.8-C60 45
WZSCY-5/10 5.00  177 10 145 2570*1860*1720 1200 QFS2.8-C60 45
WZSCY-6/7 6.00  212 7 102 2570*1860*1720 1200 QFS2.8-C60 45
WZSCY-5/13 5.31  187 13 189 3120*1860*1800 1500 QSB3.9-C80-31 60
WZSCY- 7/7 7.00  247 7 102 3120*1860*1800 1500 QSB3.9-C80-31 60
WZSCY-7/10 7.00  247 10 145 3120*1860*1800 1500 QSB3.9-C80-31 60
WZSCY-7/13 7.00  247 13 189 3360*2571*2050 1700 QSB3.9-C100-31 74
WZSCY-10/8 10.00  353 8 116 3360*2571*2050 1700 QSB3.9-C130-31 74
WZSCY-9/13 9.00  318 13 189 3360*2571*2050 1700 QSB3.9-C130-31 96
WZSCY-10/10 10.00  353 10 145 3360*2571*2050 1700 QSB3.9-C130-31 96
WZSCY-12/7 12.11  428 7 102 3360*2571*2050 1700 QSB3.9-C130-31 96
WZSCY-8/16 8.01  283 16 232 3155*2110*2295 2050 QSB5.9-C150-31 113
WZSCY-9/15 9.00  318 15 218 3155*2110*2295 2050 QSB5.9-C150-31 113
WZSCY-10/13 10.02  354 13 189 3155*2110*2295 2050 QSB5.9-C150-31 113
WZSCY-11/10 11.00  388 10 145 3155*2110*2295 2050 QSB5.9-C150-31 113
WZSCY-15/8 15.00  530 8 116 3155*2110*2295 2050 QSB5.9-C150-31 113
WZSCY-12/13 12.00  424 13 189 3388*1760*2620 3600 QSB5.9-C180-31 132
WZSCY-14/12 14.00  494 12 174 3388*1760*2620 3600 QSB5.9-C180-31 132
WZSCY-15/10 15.19  536 10 145 3388*1760*2620 3600 QSB5.9-C180-31 132
WZSCY-17/8 17.00  600 8 116 3388*1760*2620 3600 QSB5.9-C180-31 132
WZSCY18/7 18.00  636 7 102 3388*1760*2620 3600 QSB5.9-C180-31 132
WZSCY-13/18 13.55  478 18 261 3400*1770*2660 4000 QSC8.3-C215-30 160
WZSCY-13/20 13.00  459 20 290 3400*1770*2660 4000 QSC8.3-C215-30 160
WZSCY-15/16 15.00  530 16 232 3400*1770*2660 4000 QSC8.3-C215-30 160
WZSCY-17/13 17.00  600 13 189 3400*1770*2660 4000 QSC8.3-C215-30 160
WZSCY-18/10 18.00  636 10 145 3400*1770*2660 4000 QSC8.3-C215-30 160
WZSCY-23/8 23.00  812 8 116 3400*1770*2660 4000 QSC8.3-C215-30 160
WZSCY-15/18 15.00  530 18 261 3400*1770*2660 4000 QSC8.3-C260-30 194
WZSCY-17/14 17.66  624 14 203 3400*1770*2660 4000 QSC8.3-C260-30 194
WZSCY-20/13 20.67  730 13 189 3400*1770*2660 4000 QSC8.3-C260-30 194
WZSCY-22/10 22.21  784 10 145 3400*1770*2660 4000 QSC8.3-C260-30 194
WZSCY-24/8 24.00  847 8 116 3400*1770*2660 4000 QSC8.3-C260-30 194
WZSCY-18/18 18.28  645 18 261 3780*1980*2685 4400 QSL8.9-C325-30 239
WZSCY-19/14 19.75  697 14 203 3780*1980*2685 4400 QSL8.9-C325-30 239
WZSCY-20/16 20.18  713 16 232 3780*1980*2685 4400 QSL8.9-C325-30 239
WZSCY-21/15 21.00  742 15 218 3780*1980*2685 4400 QSL8.9-C325-30 239
WZSCY-23/13 23.00  812 13 189 3780*1980*2685 4400 QSL8.9-C325-30 239
WZSCY-27/10 27.00  953 10 145 3780*1980*2685 4400 QSL8.9-C325-30 239
WZSCY-28/8 28.00  989 8 116 3780*1980*2685 4400 QSL8.9-C325-30 239
WZSCY-22/20 22.00  777 20 290 3960*2160*2905 5500 QSL8.9-C360-30 264
WZSCY-23/15 23.00  812 15 218 3960*2160*2905 5500 QSL8.9-C360-30 264
WZSCY-25/13 25.00  883 13 189 3960*2160*2905 5500 QSL8.9-C360-30 264
WZSCY-26/12 26.00  918 12 174 3960*2160*2905 5500 QSL8.9-C360-30 264
WZSCY-28/10 28.00  989 10 145 3960*2160*2905 5500 QSL8.9-C360-30 264
WZSCY-32/10 32.25  1139 10 145 3960*2160*2905 5500 QSL8.9-C360-30 264
WZSCY-33/8 33.00  1165 8 116 3960*2160*2905 5500 QSL8.9-C360-30 264
WZSCY-36/7 36.00  1271 7 102 3960*2160*2905 5500 QSL8.9-C360-30 264
WZSCY-26/25 26.00  918 25 363 4700*2100*2900 4800 QSZ13-C550 410
WZSCY-34/25 34.00  1200 25 363 4700*2100*2900 6800 QSZ13-C550 410
WZSCY-45/10 46.38  1638 10 145 4715*2160*3200 7000 QSZ13-C550 410
WZSCY-33/35 33.00  1165 35 508 5000*2200*2900 7200 KTA19-P700 522
WZSCY-39/25 39.00  1377 25 363 5000*2200*2900 7200 KTA19-P700 522
Note: Skid-mounted type is available.

 
Wan CHINAMFG Certification

Wan CHINAMFG Exhibition

FAQ

1.  OEM/ODM, or customer’ s logo printed is available?

     Yes, OEM/ODM, customer’s logo is welcomed.

2.   Delivery date?
     Usually 5-25 working days after receiving deposit, specific delivery date based on order quantity.
 

3.  What’s your payment terms?

     Regularly doing 30% deposit and 70% balance by T/T, Western Union, Paypal, other payment terms also can be discussed based on our  cooperation.
 

4.  How to control your quality?

     We have professional QC team, control the quality during the mass production and inspect the products before shipping.
 

5.  If we don’ t have shipping forwarder in China , would you do this for us?

     We can offer you best shipping line to ensure you can get the goods timely at best price.
 

6.  I never come to China before , can you be my guide in China?

     Sure , I’m glad to be your guide because our company directly located in ZheJiang , where is the most famous city in China, if you want to come China then we are happy to provide you one-stop service, such as booking ticket, picking up at the airport, booking hotel, accompany visiting factory. It gonna make you an unforgettable memory.

MARKETING NETWORK
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After-sales Service: Video Technical Support
Warranty: Unit 1 Year, Air End 2 Years
Lubrication Style: Oil-less
Customization:
Available

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Shipping Cost:

Estimated freight per unit.







about shipping cost and estimated delivery time.
Payment Method:







 

Initial Payment



Full Payment
Currency: US$
Return&refunds: You can apply for a refund up to 30 days after receipt of the products.

air compressor

What Is the Role of Oil in Lubricated Screw Compressors?

In lubricated screw compressors, oil plays a crucial role in ensuring optimal performance, reliability, and longevity of the compressor. Here’s a detailed explanation of the role of oil in lubricated screw compressors:

Lubrication: One of the primary functions of oil in screw compressors is to provide lubrication to the moving parts, particularly the screw rotors. The oil forms a thin film between the rotors and the compressor housing, reducing friction and wear. This lubrication minimizes mechanical losses and helps maintain efficient operation by reducing energy consumption.

Sealing: Oil also acts as a sealing medium in lubricated screw compressors. The oil film created between the rotors and the compressor housing helps create a seal, preventing air or gas leakage between the high-pressure and low-pressure sides of the compressor. This sealing action is crucial for maintaining the compressors’ efficiency and preventing losses in compression performance.

Cooling: Oil plays a vital role in cooling various components of the screw compressor. As the compressed air or gas is compressed, it generates heat. The oil absorbs a significant amount of this heat and carries it away from the compression chamber. The oil then circulates through the compressor’s oil cooling system, where it dissipates the heat to the surrounding environment or through an oil cooler. Efficient oil cooling helps prevent overheating of the compressor components, ensuring reliable operation and extending the compressor’s lifespan.

Cleaning: The oil in lubricated screw compressors acts as a cleaning agent. It carries away contaminants, such as dirt, dust, and metal particles, that may enter the compressor during operation. The oil passes through filters and separators, removing these impurities and preventing them from accumulating in the compressor’s internal components. Clean oil helps maintain the integrity of the compressor’s internal parts and reduces the risk of damage or malfunctions.

Sealing Element Lubrication: In some lubricated screw compressors, the oil also serves to lubricate the sealing elements, such as the shaft seals or labyrinth seals. Proper lubrication of these seals helps maintain their effectiveness in preventing oil leakage and maintaining the separation between the oil and the compressed air or gas.

Corrosion Protection: Oil in screw compressors often contains additives that provide corrosion protection to the internal components. These additives form a protective layer on the metal surfaces, preventing corrosion caused by moisture or contaminants present in the compressed air or gas. Corrosion prevention helps maintain the compressor’s performance, efficiency, and reliability over time.

It’s important to note that lubricated screw compressors require regular oil monitoring, oil analysis, and oil changes to ensure optimal performance. The oil level, quality, and viscosity should be regularly checked and maintained within the manufacturer’s recommended specifications.

In summary, oil in lubricated screw compressors serves crucial functions such as lubrication, sealing, cooling, cleaning, sealing element lubrication, and corrosion protection. These functions collectively contribute to the efficient and reliable operation of the compressor, extending its service life and minimizing maintenance requirements.

air compressor

What Is the Impact of Ambient Temperature on Screw Compressor Performance?

Ambient temperature has a significant impact on the performance of screw compressors. Here’s a detailed explanation:

Screw compressors, like other types of compressors, rely on the surrounding environment to dissipate heat and maintain optimal operating conditions. The ambient temperature directly affects the compressor’s efficiency, capacity, power consumption, and overall performance.

Here are the key ways in which ambient temperature influences screw compressor performance:

1. Cooling Efficiency:

The cooling efficiency of a screw compressor is affected by the temperature difference between the compressed gas and the ambient air. As the ambient temperature increases, the temperature difference decreases, making it more challenging to transfer heat effectively. This can lead to higher discharge temperatures and reduced cooling efficiency, potentially impacting the compressor’s overall capacity and performance.

2. Capacity and Power Consumption:

Higher ambient temperatures can decrease the capacity of a screw compressor. Compressors are typically designed and rated based on specific operating conditions, including a defined ambient temperature range. When the ambient temperature exceeds the design limits, the compressor may experience reduced volumetric efficiency, resulting in a decrease in its overall capacity. Additionally, the compressor may require more power to maintain the desired pressure levels, leading to increased power consumption.

3. Heat Recovery:

In some applications, screw compressors are equipped with heat recovery systems to utilize the waste heat generated during compression. The effectiveness of heat recovery is influenced by the ambient temperature. Higher ambient temperatures can reduce the temperature differential available for heat exchange, limiting the potential for heat recovery and decreasing the overall system efficiency.

4. Lubrication and Cooling:

Screw compressors rely on lubrication systems to reduce friction and prevent wear between moving parts. The ambient temperature affects the performance of the lubricant. In high ambient temperatures, the lubricant may experience decreased viscosity, potentially leading to inadequate lubrication and increased wear on compressor components. Similarly, the cooling system of the compressor, including fans and heat exchangers, may be less effective in higher ambient temperatures, impacting the compressor’s ability to dissipate heat.

5. Operating Envelope:

Screw compressors have specified operating envelopes, which define the acceptable range of operating conditions, including ambient temperature. Operating the compressor outside its designed ambient temperature range can result in reduced reliability, increased maintenance requirements, and potential system failures. It is crucial to adhere to the manufacturer’s guidelines and ensure that the compressor operates within the recommended ambient temperature limits.

6. Control and Protection:

Modern screw compressors often feature advanced control and protection systems that monitor various parameters, including ambient temperature. These systems may adjust compressor operation, such as modulation of capacity or cooling strategies, to optimize performance and protect the compressor from operating outside safe limits. Understanding the impact of ambient temperature allows for appropriate adjustments and settings to maintain reliable and efficient compressor operation.

It’s important to note that different compressor models and manufacturers may have specific performance characteristics and operating limits. Therefore, consulting the manufacturer’s documentation and guidelines for the particular screw compressor in use is essential.

In summary, ambient temperature significantly affects the performance of screw compressors. Higher ambient temperatures can reduce cooling efficiency, decrease compressor capacity, increase power consumption, and impact lubrication and cooling systems. Adhering to recommended operating conditions and considering ambient temperature limitations are crucial for ensuring optimal performance, reliability, and longevity of screw compressors.

air compressor

Can Screw Compressors Be Used in Industrial Applications?

Yes, screw compressors are widely used in industrial applications and are well-suited for various industrial processes. Here’s a detailed explanation:

1. Manufacturing and Assembly:

Screw compressors find extensive use in manufacturing and assembly processes. They provide a reliable source of compressed air for powering pneumatic tools, such as drills, impact wrenches, and spray guns. Compressed air is also used for operating pneumatic cylinders and valves, facilitating automation and control in industrial production lines.

2. Industrial Automation:

In industrial automation systems, screw compressors play a crucial role in providing compressed air for actuating control valves, operating robotic arms, and powering pneumatic actuators. The continuous and reliable supply of compressed air from screw compressors ensures the smooth operation of automated machinery and equipment.

3. HVAC Systems:

Screw compressors are commonly used in large-scale heating, ventilation, and air conditioning (HVAC) systems. They are employed in chillers, which cool water or air for air conditioning and refrigeration purposes. Screw compressors in HVAC systems offer high energy efficiency, making them cost-effective and environmentally friendly options for large commercial and industrial buildings.

4. Food and Beverage Industry:

The food and beverage industry relies on screw compressors for various applications. They are used for providing compressed air in food processing and packaging operations, such as pneumatic conveying, filling, labeling, and sealing. Screw compressors used in this industry are often of the oil-free type to ensure air purity and prevent contamination of food products.

5. Pharmaceuticals and Healthcare:

In the pharmaceutical and healthcare sectors, screw compressors are vital for critical applications. They provide clean and oil-free compressed air required for pharmaceutical manufacturing processes, including tablet coating, fermentation, lyophilization, and cleanroom operations. Screw compressors with strict air quality standards, such as oil-free and contaminant-free options, are commonly used in these industries.

6. Energy and Power Generation:

Screw compressors play a significant role in energy and power generation facilities. They are used for processes such as gas compression, pneumatic conveying of coal and biomass, and control air supply in power plants. Screw compressors in these applications are designed to handle high pressures and large volumes of gas.

7. Mining and Construction:

In mining and construction industries, screw compressors are employed for various tasks. They power pneumatic tools and equipment used in drilling, rock blasting, material handling, and construction activities. Screw compressors are valued for their reliability, continuous operation, and ability to withstand harsh operating conditions.

8. Oil and Gas Industry:

The oil and gas industry extensively uses screw compressors for gas compression and processing. Screw compressors are employed in natural gas pipelines, gas processing plants, and refineries. They handle the compression of gases, such as natural gas, hydrogen, and process gases, ensuring efficient transportation and refining operations.

These are just a few examples of the industrial applications where screw compressors are commonly used. Their high efficiency, continuous operation, compact design, and capacity flexibility make them well-suited for a wide range of industrial processes and systems.

China high quality China Manufacturer of Industrial Heavy Duty Movable Portable Diesel Engine Direct Driven Rotary Screw Type Air Compressors for Construction   air compressor priceChina high quality China Manufacturer of Industrial Heavy Duty Movable Portable Diesel Engine Direct Driven Rotary Screw Type Air Compressors for Construction   air compressor price
editor by CX 2024-01-10

China factory The Factory Price of CHINAMFG Air Compressor with CE portable air compressor

Product Description

HangZhou CHINAMFG is a company that combines the development, manufacturing, and marketing of gasoline generators,
diesel generators, water pumps, air compressors.Factory possess advanced production testing equipment and a modern
quality management system, and have always implemented comprehensive quality control through strict adherence to
ISO9001 standards. Furthermore, our products have also passed GE, CE, EMC certification.

FEATURE:
 1.The start power of generator set is a qualified engine, insuring fuel buring effectively and economically
 2.Adopting several reliable measures for shock protection, with a small shock of the whole sets.
 3.With a whole closed structure set, adopting light materials, small cubage and light weight. 

DESCRIPTION:

Power(Kw/HP) 1.5/2HP
Speed(r.m.p) 1100
Displacement(L/min) 180
Tank 100
Pressure(p.s.i/Mpa) 175/1.25
Meas 118*48*86

F A Q: 
1Q:Are you a factory or trading company? 
A: We are a factory.
 
2Q:Where is your factory located? 
A: Our factory is located in Xihu (West Lake) Dis. industry,HangZhou city, ZHangZhoug Province, China.
It’s near HangZhou  port.
 
3Q:Can you accept OEM?
A:Yes, we can accept OEM.
 
4Q:What’s your delivery time?
A:Normally 30 days for container order.
 
5Q:How about quality control in your factory? 
A: Our QC Department take the strictly quality control for every spare parts and whole machine. 

Lubrication Style: Lubricated
Cooling System: Air Cooling
Cylinder Arrangement: Series Arrangement
Cylinder Position: Horizontal
Structure Type: Open Type
Compress Level: Single-Stage
Samples:
US$ 50/Piece
1 Piece(Min.Order)

|
Request Sample

Customization:
Available

|

air compressor

What are the energy-saving technologies available for air compressors?

There are several energy-saving technologies available for air compressors that help improve their efficiency and reduce energy consumption. These technologies aim to optimize the operation of air compressors and minimize energy losses. Here are some common energy-saving technologies used:

1. Variable Speed Drive (VSD) Compressors:

VSD compressors are designed to adjust the motor speed according to the compressed air demand. By varying the motor speed, these compressors can match the output to the actual air requirement, resulting in energy savings. VSD compressors are particularly effective in applications with varying air demands, as they can operate at lower speeds during periods of lower demand, reducing energy consumption.

2. Energy-Efficient Motors:

The use of energy-efficient motors in air compressors can contribute to energy savings. High-efficiency motors, such as those with premium efficiency ratings, are designed to minimize energy losses and operate more efficiently than standard motors. By using energy-efficient motors, air compressors can reduce energy consumption and achieve higher overall system efficiency.

3. Heat Recovery Systems:

Air compressors generate a significant amount of heat during operation. Heat recovery systems capture and utilize this wasted heat for other purposes, such as space heating, water heating, or preheating process air or water. By recovering and utilizing the heat, air compressors can provide additional energy savings and improve overall system efficiency.

4. Air Receiver Tanks:

Air receiver tanks are used to store compressed air and provide a buffer during periods of fluctuating demand. By using appropriately sized air receiver tanks, the compressed air system can operate more efficiently. The tanks help reduce the number of starts and stops of the air compressor, allowing it to run at full load for longer periods, which is more energy-efficient than frequent cycling.

5. System Control and Automation:

Implementing advanced control and automation systems can optimize the operation of air compressors. These systems monitor and adjust the compressed air system based on demand, ensuring that only the required amount of air is produced. By maintaining optimal system pressure, minimizing leaks, and reducing unnecessary air production, control and automation systems help achieve energy savings.

6. Leak Detection and Repair:

Air leaks in compressed air systems can lead to significant energy losses. Regular leak detection and repair programs help identify and fix air leaks promptly. By minimizing air leakage, the demand on the air compressor is reduced, resulting in energy savings. Utilizing ultrasonic leak detection devices can help locate and repair leaks more efficiently.

7. System Optimization and Maintenance:

Proper system optimization and routine maintenance are essential for energy savings in air compressors. This includes regular cleaning and replacement of air filters, optimizing air pressure settings, ensuring proper lubrication, and conducting preventive maintenance to keep the system running at peak efficiency.

By implementing these energy-saving technologies and practices, air compressor systems can achieve significant energy efficiency improvements, reduce operational costs, and minimize environmental impact.

air compressor

Can air compressors be used for inflating tires and sporting equipment?

Yes, air compressors can be used for inflating tires and sporting equipment, providing a convenient and efficient method for achieving the desired air pressure. Here’s how air compressors are used for these purposes:

1. Tire Inflation:

Air compressors are commonly used for inflating vehicle tires, including car tires, motorcycle tires, bicycle tires, and even larger truck or trailer tires. Air compressors provide a continuous source of pressurized air, allowing for quick and accurate inflation. They are often used in automotive repair shops, gas stations, and by individuals who regularly need to inflate tires.

2. Sporting Equipment Inflation:

Air compressors are also useful for inflating various types of sporting equipment. This includes inflatable balls such as soccer balls, basketballs, footballs, and volleyballs. Additionally, air compressors can be used to inflate inflatable water toys, air mattresses, inflatable kayaks, and other recreational items that require air for proper inflation.

3. Air Tools for Inflation:

Air compressors can power air tools specifically designed for inflation purposes. These tools, known as inflators or air blow guns, provide controlled airflow for inflating tires and sporting equipment. They often have built-in pressure gauges and nozzles designed to fit different types of valves, making them versatile and suitable for various inflation tasks.

4. Adjustable Pressure:

One advantage of using air compressors for inflation is the ability to adjust the pressure. Most air compressors allow users to set the desired pressure level using a pressure regulator or control knob. This feature ensures that tires and sporting equipment are inflated to the recommended pressure, promoting optimal performance and safety.

5. Efficiency and Speed:

Air compressors provide a faster and more efficient inflation method compared to manual pumps. The continuous supply of compressed air allows for quick inflation, reducing the time and effort required to inflate tires and sporting equipment manually.

6. Portable Air Compressors:

For inflating tires and sporting equipment on the go, portable air compressors are available. These compact and lightweight compressors can be easily carried in vehicles or taken to sports events and outdoor activities, ensuring convenient access to a reliable air supply.

It is important to note that when using air compressors for inflating tires, it is recommended to follow manufacturer guidelines and proper inflation techniques to ensure safety and avoid overinflation.

air compressor

Are there air compressors specifically designed for high-pressure applications?

Yes, there are air compressors specifically designed for high-pressure applications. These compressors are engineered to generate and deliver compressed air at significantly higher pressures than standard air compressors. Here are some key points about high-pressure air compressors:

1. Pressure Range: High-pressure air compressors are capable of producing compressed air at pressures typically ranging from 1000 to 5000 psi (pounds per square inch) or even higher. This is considerably higher than the typical range of 100 to 175 psi for standard air compressors.

2. Construction: High-pressure aircompressors feature robust construction and specialized components to withstand the higher pressures involved. They are designed with reinforced cylinders, pistons, valves, and seals that can handle the increased stress and prevent leaks or failures under high-pressure conditions.

3. Power: Generating high-pressure compressed air requires more power than standard compressors. High-pressure air compressors often have larger motors or engines to provide the necessary power to achieve the desired pressure levels.

4. Applications: High-pressure air compressors are utilized in various industries and applications where compressed air at elevated pressures is required. Some common applications include:

  • Industrial manufacturing processes that involve high-pressure air for operations such as air tools, pneumatic machinery, and equipment.
  • Gas and oil exploration and production, where high-pressure air is used for well drilling, well stimulation, and enhanced oil recovery techniques.
  • Scuba diving and underwater operations, where high-pressure air is used for breathing apparatus and underwater tools.
  • Aerospace and aviation industries, where high-pressure air is used for aircraft systems, testing, and pressurization.
  • Fire services and firefighting, where high-pressure air compressors are used to fill breathing air tanks for firefighters.

5. Safety Considerations: Working with high-pressure air requires adherence to strict safety protocols. Proper training, equipment, and maintenance are crucial to ensure the safe operation of high-pressure air compressors. It is important to follow manufacturer guidelines and industry standards for high-pressure applications.

When selecting a high-pressure air compressor, consider factors such as the desired pressure range, required flow rate, power source availability, and the specific application requirements. Consult with experts or manufacturers specializing in high-pressure compressed air systems to identify the most suitable compressor for your needs.

High-pressure air compressors offer the capability to meet the demands of specialized applications that require compressed air at elevated pressures. Their robust design and ability to deliver high-pressure air make them essential tools in various industries and sectors.

China factory The Factory Price of CHINAMFG Air Compressor with CE   portable air compressorChina factory The Factory Price of CHINAMFG Air Compressor with CE   portable air compressor
editor by CX 2023-10-17

China Professional Permanent Magnet Synchronous Motor (PMSM) Variable Frequency Converter Drive Pm VSD Inverter Direct Driven Double Screw Air Compressor with Affordable Price air compressor portable

Product Description

Industrial AC Power Permanent Magnet Synchronous Motor (PMSM) Variable Frequency Converter Drive Pm VSD Inverter Direct Coupled Screw Air Compressor Advantage 

1. DENAIR PMSM(Permanent Magnet Synchronous Motor) VSD air compressor reduces the energy consumption by a staggering 50% on average.
 
2.Best-in-class screw element with longer male rotor, high volumetric efficiency
 
3.Permanent magnetic electric motor, no bearing, no lubricant and no maintenance, 100% transmission
 
4.Intelligent touch screen control panel, checking air compressor status more conveniently, monitor total power consumption, setting start and stop time of air compressor 
 
5.Unique design for inverter, perfect protection from short phase, phase short circuit, ground short circuit, over current, overvoltage, under voltage, overload, overheating, motor thermal protections etc.

Technical Parameters Of Variable Frequency Air Compressor with PMSM Motor

Model Maximum working pressure Capacity(FAD) Installed
motor power
IP Grade Noise level Dimensions
(mm)
Weight Air outlet
pipe diameter
Starting
Method
EEI
bar(g) psig m3/min cfm kw hp L*W*H kg
DAV-5 7.5  109 0.45-0.89 15.80-31.59 5.5 7.5 IP65 75 900*660*960 315 G3/4″ Direct Driven
Air
Cooling
EEI1
8.5  123 0.44-0.88 15.61-31.22
10.5  152 0.38-0.76 13.38-26.76
DAV-7 7.5  109 0.59-1.19 21.00-42.00 7.5 10 IP65 75 900*660*960 315 G3/4″
8.5  123 0.58-1.17 20.63-41.26
10.5  152 0.51-1.01 17.84-35.68
DAV-11 7.5  109 0.90-1.80 31.78-63.56 11 15 IP65 75 900*660*960 324 G3/4″
8.5  123 0.89-1.79 31.59-63.19
10.5  152 0.81-1.61 28.43-56.87
13.0  189 0.68-1.37 24.16-48.32
DAV-15 7.5  109 1.22-2.43 42.93-85.86 15 20 IP65 75 1465*990*1345 453 G1-1/4″
8.5  123 1.18-2.37 41.81-83.63
10.5  152 1.05-2.09 36.98-73.97
13.0  189 0.96-1.92 33.82-67.65
DAV-18 7.5  109 1.55-3.09 54.64-109.28 18.5 25 IP65 75 1465*990*1345 453 G1-1/4″
8.5  123 1.51-3.01 53.15-106.30
10.5  152 1.34-2.68 47.39-94.78
13.0  189 1.08-2.16 38.10-76.20
DAV-22 7.5  109 1.82-3.64 64.30-128.60 22 30 IP65 75 1465*990*1345 477 G1-1/4″
8.5  123 1.81-3.62 63.93-127.86
10.5  152 1.67-3.35 59.10-118.20
13.0  189 1.32-2.63 46.46-92.92
DAV-30 7.5  109 2.63-5.26 92.92-185.84 30 40 IP65 78 1600*1250*1550 682 G1-1/2″
8.5  123 2.62-5.24 92.55-185.10
10.5  152 2.36-4.72 83.26-166.51
13.0  189 2.09-4.18 73.78-147.56
DAV-37 7.5  109 3.44-6.87 121.35-242.71 37 50 IP65 78 1600*1250*1550 728 G1-1/2″
8.5  123 3.43-6.85 120.98-241.97
10.5  152 2.95-5.89 104.07-208.14
13.0  189 2.40-4.80 84.74-169.49
DAV-45 7.5  109 4.01-8.01 141.43-282.85 45 60 IP65 78 1600*1250*1550 728 G1-1/2″
8.5  123 3.99-7.98 140.87-281.74
10.5  152 3.63-7.25 128.05-256.09
13.0  189 3.15-6.29 111.13-222.27
DAV-55 7.5  109 5.14-10.28 181.57-363.14 55 75 IP54 80 1800*1200*1400 1310 G2″
8.5  123 5.10-10.20 180.08-360.16
10.5  152 4.83-9.66 170.60-341.21
13.0  189 3.94-7.87 139.01-278.02
DAV-75 7.5  109 6.48-12.97 228.96-457.91 75 100 IP54 80 1800*1200*1400 1325 G2
8.5  123 6.44-12.87 227.28-454.57
10.5  152 5.71-11.42 201.64-403.28
13.0  189 4.68-9.37 165.40-330.80
*) FAD in accordance with ISO 1217:2009, Annex C: Ansolute intake pressure 1 bar (a), cooling and air intake temperature 20ºC
**) Nosie level as per ISO 2151 and the basic standard ISO 9614-2, operation at maximum operating pressure and maximum speed; tolerance:±3 dB(A)
Specifications are subject to change without prior notice

We carefully selected for you the classic case


14 sets of VSD air compressor for 40HQ are ready for packing and delivering to CHINAMFG distributor in Buenos Aires, Argentina. The compressors are high-end customized for Argentina market with Germany MANN filters, France SCHNEIDER inverter, Belgium CMC controller, etc. 

DENAIR Factory

DENAIR Customers

DENAIR Exhibition

DENAIR Certificae

DENAIR Packing

FAQ

Q1: Are you factory or trade company?  
A1: We are factory.

Q2: What the exactly address of your factory? 
A2:  No. 366, YangzhuangBang Street, Pingxing Rd., Xindai Town, HangZhou, ZHangZhoug Province, China

Q3: Warranty terms of your machine? 
A3: Two years warranty for the machine and technical support according to your needs.

Q4: Will you provide some spare parts of the Air Compressors? 
A4: Yes, of course.

Q5: How long will you take to arrange production? 
A5: 380V 50HZ we can delivery the goods within 10 days. Other electricity or other color we will delivery within 22 days

Q6: Can you accept OEM orders? 
A6: Yes, with professional design team, OEM orders are highly welcome.

Shipping Cost:

Estimated freight per unit.



To be negotiated
Lubrication Style: Lubricated or Oil-Less
Cooling System: Air Cooling/Water Cooling
Power Source: AC Power
Customization:
Available

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air compressor

How Do You Select the Right Size Screw Compressor for Your Needs?

Choosing the right size screw compressor is crucial to ensure optimal performance, energy efficiency, and cost-effectiveness for your specific compressed air or gas requirements. Here’s a detailed explanation of the selection process:

Selecting the right size screw compressor involves considering several key factors:

  • 1. Air or Gas Demand: Determine your compressed air or gas demand by assessing the total required flow rate (measured in cubic feet per minute or liters per second) and the operating pressure (measured in pounds per square inch or bar). This information helps establish the compressor’s capacity requirements.
  • 2. Duty Cycle: Evaluate your operation’s duty cycle, which refers to the percentage of time the compressor will be running. Duty cycles can vary from continuous operation to intermittent or seasonal usage. The duty cycle affects the compressor’s sizing, as it determines the required compressor output and influences the compressor’s cooling and maintenance needs.
  • 3. Ambient Conditions: Consider the environmental conditions in which the compressor will operate. Factors such as temperature, humidity, and altitude can impact the compressor’s performance and cooling requirements. Ensure that the selected compressor is suitable for the specific ambient conditions of your facility.
  • 4. System Pressure Requirements: Determine the minimum and maximum operating pressure requirements for your application. This information is essential in selecting a compressor that can consistently deliver the required pressure range throughout its operating range.
  • 5. Efficiency Considerations: Evaluate the energy efficiency of different compressor models. Look for compressors with high energy efficiency ratings, such as those certified by organizations like the Air Compressor and Gas Association (CAGI) or ENERGY STAR. Energy-efficient compressors can significantly reduce operating costs over the equipment’s lifespan.
  • 6. Future Expansion: Consider any anticipated growth or changes in your compressed air or gas demand. If you expect increased demand in the future, it’s advisable to select a compressor with some extra capacity to accommodate future expansion without requiring immediate replacement.
  • 7. Maintenance and Serviceability: Assess the maintenance requirements and serviceability of different compressor models. Look for features that make routine maintenance tasks, such as filter changes or oil checks, easily accessible and convenient. Consider the availability of service technicians and spare parts for the chosen compressor brand or model.
  • 8. Manufacturer and Supplier Support: Research the reputation and track record of compressor manufacturers and suppliers. Choose established brands known for producing reliable, high-quality equipment. Consider factors such as warranty coverage, technical support availability, and the proximity of service centers.

Once you have gathered the necessary information and considered the factors mentioned above, you can consult with compressor manufacturers or suppliers who can provide expert advice and assist in selecting the right size screw compressor for your specific needs. They can perform detailed calculations, taking into account the factors discussed, to recommend a compressor that matches your requirements and provides optimal performance.

It’s important to note that selecting the right size screw compressor is a critical decision, and professional guidance is highly recommended to ensure an accurate assessment and proper matching of the compressor to your specific needs.

In summary, selecting the right size screw compressor involves assessing your compressed air or gas demand, duty cycle, ambient conditions, pressure requirements, efficiency considerations, future expansion plans, maintenance requirements, and manufacturer support. By considering these factors and seeking expert advice, you can choose a screw compressor that meets your needs and delivers reliable, efficient performance.

air compressor

How Do You Troubleshoot Common Issues with Screw Compressors?

Troubleshooting common issues with screw compressors involves a systematic approach to identify and resolve problems that may arise during operation. Here’s a detailed explanation:

1. Gather Information:

  • Start by gathering information about the symptoms and any recent changes or events related to the compressor. This can help pinpoint potential causes and guide the troubleshooting process.

2. Check Power and Controls:

  • Ensure that the compressor has a power supply and that all electrical connections are secure. Check for any tripped breakers or blown fuses. Verify that the compressor’s controls, such as pressure switches, temperature sensors, and safety devices, are functioning correctly.

3. Inspect for Leaks:

  • Check for any visible leaks in the compressed air system, including connections, fittings, hoses, and seals. Leaks can cause a drop in system pressure and affect the compressor’s performance. Repair or replace any damaged components.

4. Monitor Pressure and Temperature:

  • Monitor the discharge pressure and temperature of the compressor. Abnormal readings can indicate issues such as inadequate lubrication, high discharge temperatures, or problems with the cooling system. Refer to the manufacturer’s specifications for acceptable pressure and temperature ranges.

5. Verify Lubrication:

  • Ensure that the compressor’s lubrication system is functioning correctly. Check oil levels and the condition of the lubricant. Inadequate lubrication can lead to increased friction, overheating, and damage to internal components. Follow the manufacturer’s recommendations for lubricant type and change intervals.

6. Check Air Filters and Cooling System:

  • Inspect and clean or replace the air filters to ensure proper airflow. Clogged filters can reduce efficiency and increase the compressor’s operating temperature. Additionally, check the cooling system, including fans and heat exchangers, to ensure they are clean and functioning correctly.

7. Examine Vibration and Noise:

  • Pay attention to any unusual vibration or noise coming from the compressor. Excessive vibration may indicate misalignment, worn bearings, or loose components. Unusual noise can be a sign of mechanical issues or problems with the intake or discharge system.

8. Review Maintenance Records:

  • Review the compressor’s maintenance records to ensure that regular maintenance tasks, such as oil changes, filter replacements, and inspections, have been performed according to the manufacturer’s recommendations. Address any overdue or missed maintenance tasks.

9. Consult Manufacturer Documentation:

  • Refer to the compressor’s operating manual and troubleshooting guide provided by the manufacturer. These documents often contain specific troubleshooting steps for common issues and can provide valuable insights.

10. Seek Professional Assistance:

  • If the troubleshooting steps do not resolve the issue or if you are unsure about performing further diagnostics, it is recommended to seek assistance from a qualified technician or contact the compressor manufacturer’s technical support.

Remember to prioritize safety throughout the troubleshooting process, following appropriate lockout/tagout procedures and wearing the necessary personal protective equipment.

In summary, troubleshooting common issues with screw compressors involves checking power and controls, inspecting for leaks, monitoring pressure and temperature, verifying lubrication, checking air filters and cooling systems, examining vibration and noise, reviewing maintenance records, consulting manufacturer documentation, and seeking professional assistance when needed. By following a systematic approach, it is possible to identify and resolve common problems with screw compressors, ensuring their proper operation and performance.

air compressor

What Is the Efficiency of Screw Compressors?

The efficiency of screw compressors can vary depending on various factors, including the design, operating conditions, and maintenance. Here’s a detailed explanation of the efficiency of screw compressors:

1. Isothermal Efficiency:

Isothermal efficiency refers to the ideal efficiency of a compressor operating under isothermal conditions. In reality, screw compressors experience temperature rise during compression, and therefore, they do not achieve isothermal efficiency. The compression process in screw compressors is considered to be relatively close to isothermal compared to other compressor types, such as reciprocating compressors. This is due to the continuous and smooth flow of air or gas through the compression chamber, which helps in minimizing temperature differences.

2. Adiabatic Efficiency:

Adiabatic efficiency refers to the actual efficiency of a compressor, taking into account the heat generated during compression. Screw compressors typically have higher adiabatic efficiency compared to reciprocating compressors. The helical design of the rotors and the presence of intermeshing lobes allow for efficient compression with minimal energy loss. The adiabatic efficiency of a screw compressor can be influenced by factors such as the compression ratio, rotational speed, and discharge pressure.

3. Overall Efficiency:

The overall efficiency of a screw compressor takes into account various factors, including mechanical losses, power consumption, and auxiliary power requirements. Mechanical losses can occur due to friction between the rotors, bearings, and other moving parts. Well-maintained screw compressors with properly lubricated components and well-aligned rotors can minimize mechanical losses and improve overall efficiency. Power consumption is another factor affecting efficiency, and it can vary depending on the size, design, and operating conditions of the compressor.

4. Energy Efficiency:

Energy efficiency is an important aspect of screw compressors. It relates to the ability of the compressor to convert electrical energy into compressed air with minimal energy waste. Energy-efficient screw compressors are designed to optimize the compression process, reduce power consumption, and maximize output for a given input. Variable Speed Drive (VSD) screw compressors, for example, can adjust the rotational speed to match the compressed air demand, resulting in improved energy efficiency and significant energy savings.

It’s important to note that the efficiency of screw compressors can vary depending on the specific model, design features, and operating conditions. Regular maintenance, including proper lubrication, cleaning, and component inspection, is crucial for maintaining high efficiency levels. Additionally, selecting the right size and type of screw compressor for the intended application is essential to achieve optimal efficiency and performance.

In summary, screw compressors are known for their relatively high efficiency compared to other compressor types. While they may not achieve perfect isothermal efficiency, their adiabatic efficiency, overall efficiency, and energy efficiency make them suitable for a wide range of industrial applications.

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editor by CX 2023-10-04