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China Professional Chinese Large Power Direct Driven SCR125iiscrew Air Compressor with Hot selling

Product Description

Product Technical Description

Product Name Chinese Large Power Direct Driven SCR125IIScrew Air Compressor
Model :  Large Power Screw Air Compressor (II series)
Type:  Large Power Screw Air Compressor
Voltage:  380V/50HZ/3P, 220V/60HZ/3P, 400V/50HZ/3P, 415V/50HZ/3P or Customer′s Requirements
Working Pressure:  7~12.5 bar
Installed Motor Power:  90KW~400KW
Capacity: 12.5~74 m3/min
Color:  Blue
Driven Method: Direct Driven
Trademark:  SCR
Transport Package:  Standard Wooden Packing
Available Certificate:  CE, ISO, UL, ASME, GHOST
Origin:  ZheJiang , China
application:  Casting , Metal , Plastic , Rubber

Product Features

German high quality centrifugal fan

German ROSENBERG’s newest centrifugal fans, big cooling air volume, stable and uniform
air pressure , full use of the heat dissipation area, good cooling effect. Totally conquer the problem of big horse power air cooling type compressors poor cooling effect problems.

High quality air inlet valve

SCR use a high quality imported inlet valve. CHINAMFG have adopted this technology because when the machine unloads the device will automatically adjust the exhaust pressure. Compared with similar products this greatly reduces the unload power, also reduces the bearing load at the same time, and improving the bearing service life.

American High quality air filter system

The Donaldson air filter adopts a nano coating on the filter surface with an innovative filter construc-tion. The filter has a low pressure drop which reduc-es energy consumption. Compared with traditional filters it has a higher dust capacity and lower flow resistance.

High quality high efficiency specialized motor

High Efficiency all closed air cooling air compressor specialized motor. Protection grade IP55 Optional , insulation grade F, class B temperature rise, can prevent dust and moisture into the motor.  bearing can ensure long-term continuous trouble-free operation.


Model SCR125II-8 SCR125II-10 SCR125II-12.5
Capacity/Pressure(m3/min,/BAR) 15.5/8 14.1/10 11.7/12.5
TEFC Motor Power(KW) 90KW(125H.P)
Speed(r/min) 2970
Starting way Star-Delta
Volt(V) 380/400/415(220)
Motor safety grade IP54
Motor isolation grade F
Electrical Supply 380(400,415)V/50Hz/3Phase, 220V/60HZ/3P
Outlet Temperature(ºC) ≤ Environment Temperature+10ºC
Driven way Direct Driven
Noise level at 1 meter 79±3dB(A)
Cooling method Air cooling
Oil content ≤3 ppm
Outlet Connection Rc 2 1/2″
Dimension Length(mm) 2500
Width(mm) 1600
Height(mm) 1775
Weight(KG) 2400

Product Categories



About SCR

Lubrication Style: Lubricated
Cooling System: Air Cooling
Power Source: AC Power
Cylinder Position: Vertical
Structure Type: Closed Type
Installation Type: Stationary Type


air compressor

What is the impact of humidity on compressed air quality?

Humidity can have a significant impact on the quality of compressed air. Compressed air systems often draw in ambient air, which contains moisture in the form of water vapor. When this air is compressed, the moisture becomes concentrated, leading to potential issues in the compressed air. Here’s an overview of the impact of humidity on compressed air quality:

1. Corrosion:

High humidity in compressed air can contribute to corrosion within the compressed air system. The moisture in the air can react with metal surfaces, leading to rust and corrosion in pipes, tanks, valves, and other components. Corrosion not only weakens the structural integrity of the system but also introduces contaminants into the compressed air, compromising its quality and potentially damaging downstream equipment.

2. Contaminant Carryover:

Humidity in compressed air can cause carryover of contaminants. Water droplets formed due to condensation can carry particulates, oil, and other impurities present in the air. These contaminants can then be transported along with the compressed air, leading to fouling of filters, clogging of pipelines, and potential damage to pneumatic tools, machinery, and processes.

3. Decreased Efficiency of Pneumatic Systems:

Excessive moisture in compressed air can reduce the efficiency of pneumatic systems. Water droplets can obstruct or block the flow of air, leading to decreased performance of pneumatic tools and equipment. Moisture can also cause problems in control valves, actuators, and other pneumatic devices, affecting their responsiveness and accuracy.

4. Product Contamination:

In industries where compressed air comes into direct contact with products or processes, high humidity can result in product contamination. Moisture in compressed air can mix with sensitive products, leading to quality issues, spoilage, or even health hazards in industries such as food and beverage, pharmaceuticals, and electronics manufacturing.

5. Increased Maintenance Requirements:

Humidity in compressed air can increase the maintenance requirements of a compressed air system. Moisture can accumulate in filters, separators, and other air treatment components, necessitating frequent replacement or cleaning. Excessive moisture can also lead to the growth of bacteria, fungus, and mold within the system, requiring additional cleaning and maintenance efforts.

6. Adverse Effects on Instrumentation:

Humidity can adversely affect instrumentation and control systems that rely on compressed air. Moisture can disrupt the accuracy and reliability of pressure sensors, flow meters, and other pneumatic instruments, leading to incorrect measurements and control signals.

To mitigate the impact of humidity on compressed air quality, various air treatment equipment is employed, including air dryers, moisture separators, and filters. These devices help remove moisture from the compressed air, ensuring that the air supplied is dry and of high quality for the intended applications.

air compressor

How do you maintain proper air quality in compressed air systems?

Maintaining proper air quality in compressed air systems is essential to ensure the reliability and performance of pneumatic equipment and the safety of downstream processes. Here are some key steps to maintain air quality:

1. Air Filtration:

Install appropriate air filters in the compressed air system to remove contaminants such as dust, dirt, oil, and water. Filters are typically placed at various points in the system, including the compressor intake, aftercoolers, and before point-of-use applications. Regularly inspect and replace filters to ensure their effectiveness.

2. Moisture Control:

Excessive moisture in compressed air can cause corrosion, equipment malfunction, and compromised product quality. Use moisture separators or dryers to remove moisture from the compressed air. Refrigerated dryers, desiccant dryers, or membrane dryers are commonly employed to achieve the desired level of dryness.

3. Oil Removal:

If the compressed air system utilizes oil-lubricated compressors, it is essential to incorporate proper oil removal mechanisms. This can include coalescing filters or adsorption filters to remove oil aerosols and vapors from the air. Oil-free compressors eliminate the need for oil removal.

4. Regular Maintenance:

Perform routine maintenance on the compressed air system, including inspections, cleaning, and servicing of equipment. This helps identify and address any potential issues that may affect air quality, such as leaks, clogged filters, or malfunctioning dryers.

5. Air Receiver Tank Maintenance:

Regularly drain and clean the air receiver tank to remove accumulated contaminants, including water and debris. Proper maintenance of the tank helps prevent contamination from being introduced into the compressed air system.

6. Air Quality Testing:

Periodically test the quality of the compressed air using appropriate instruments and methods. This can include measuring particle concentration, oil content, dew point, and microbial contamination. Air quality testing provides valuable information about the effectiveness of the filtration and drying processes and helps ensure compliance with industry standards.

7. Education and Training:

Educate personnel working with compressed air systems about the importance of air quality and the proper procedures for maintaining it. Provide training on the use and maintenance of filtration and drying equipment, as well as awareness of potential contaminants and their impact on downstream processes.

8. Documentation and Record-Keeping:

Maintain accurate records of maintenance activities, including filter replacements, drying system performance, and air quality test results. Documentation helps track the system’s performance over time and provides a reference for troubleshooting or compliance purposes.

By implementing these practices, compressed air systems can maintain proper air quality, minimize equipment damage, and ensure the integrity of processes that rely on compressed air.

air compressor

What are the safety considerations when operating an air compressor?

Operating an air compressor requires careful attention to safety to prevent accidents, injuries, and equipment damage. Here are some important safety considerations to keep in mind:

1. Read the Manual: Before operating an air compressor, thoroughly read and understand the manufacturer’s instruction manual. Familiarize yourself with the specific safety guidelines, recommended operating procedures, and any specific precautions or warnings provided by the manufacturer.

2. Proper Ventilation: Ensure that the area where the air compressor is operated has adequate ventilation. Compressed air can produce high levels of heat and exhaust gases. Good ventilation helps dissipate heat, prevent the buildup of fumes, and maintain a safe working environment.

3. Personal Protective Equipment (PPE): Always wear appropriate personal protective equipment, including safety glasses or goggles, hearing protection, and non-slip footwear. Depending on the task, additional PPE such as gloves, a dust mask, or a face shield may be necessary to protect against specific hazards.

4. Pressure Relief: Air compressors should be equipped with pressure relief valves or devices to prevent overpressurization. Ensure that these safety features are in place and functioning correctly. Regularly inspect and test the pressure relief mechanism to ensure its effectiveness.

5. Secure Connections: Use proper fittings, hoses, and couplings to ensure secure connections between the air compressor, air tools, and accessories. Inspect all connections before operation to avoid leaks or sudden hose disconnections, which can cause injuries or damage.

6. Inspect and Maintain: Regularly inspect the air compressor for any signs of damage, wear, or leaks. Ensure that all components, including hoses, fittings, and safety devices, are in good working condition. Follow the manufacturer’s recommended maintenance schedule to keep the compressor in optimal shape.

7. Electrical Safety: If the air compressor is electric-powered, take appropriate electrical safety precautions. Use grounded outlets and avoid using extension cords unless approved for the compressor’s power requirements. Protect electrical connections from moisture and avoid operating the compressor in wet or damp environments.

8. Safe Start-Up and Shut-Down: Properly start and shut down the air compressor following the manufacturer’s instructions. Ensure that all air valves are closed before starting the compressor and release all pressure before performing maintenance or repairs.

9. Training and Competence: Ensure that operators are adequately trained and competent in using the air compressor and associated tools. Provide training on safe operating procedures, hazard identification, and emergency response protocols.

10. Emergency Preparedness: Have a clear understanding of emergency procedures and how to respond to potential accidents or malfunctions. Know the location of emergency shut-off valves, fire extinguishers, and first aid kits.

By adhering to these safety considerations and implementing proper safety practices, the risk of accidents and injuries associated with operating an air compressor can be significantly reduced. Prioritizing safety promotes a secure and productive working environment.

China Professional Chinese Large Power Direct Driven SCR125iiscrew Air Compressor   with Hot sellingChina Professional Chinese Large Power Direct Driven SCR125iiscrew Air Compressor   with Hot selling
editor by CX 2023-10-11

China wholesaler Industrial Screw Type 11kw Air Compressors Chinese Manufacturer Direct Driven Permanet Magnet Variable Speed/Frequency (VSD/VFD) Oil Lubricated CHINAMFG air compressor price

Product Description

Oaliss compressor is 1 of the leading compressor manufacturers in China. With 20 years of manufacturing experience and a team of experienced engineers and managers, CHINAMFG began to establish its own brand by providing high-quality air compressors and compressed air treatment equipment to the market. CHINAMFG has a wide range of products ranging from oil-lubricated and oil-free rotary screw compressors and two-stage compressors. To further enrich the product lines, besides permanent magnet compressors and laser cutting compressors, CHINAMFG could also provide low-pressure and high-pressure compressors, portable air compressors and air treatment equipment.

Oaliss-your very own system provider.







1 Year

Applicable Industries

Hotels, Garment Shops, Building Material Shops, Manufacturing Plant, Machinery Repair Shops, Food & Beverage Factory, Farms, Restaurant, Home Use, Retail, Food Shop, Printing Shops, Construction works, Energy & Mining, Food & Beverage Shops, Other, Advertising Company

After Warranty Service

Spare parts

Local Service Location


Showroom Location


Video outgoing-inspection


Machinery Test Report


Marketing Type

New Product 2571

Place of Origin


Brand Name



Air Compressor


Compressor type Max. pressure  Capacity FAD Motor power Noise level Weight Air outlet Dimensions (mm)
bar(e) m3/min kW dB(A) kg LxWxH
7 1.30 7.5 64 184 G1/2″ 850x700x920
8 1.2 7.5 64 184 G1/2″ 850x700x920
10 1 7.5 64 184 G1/2″ 850x700x920
13 0.8 7.5 64 184 G1/2″ 850x700x920
7 1.7 11 65 278 G3/4″ 1080x750x1000
8 1.6 11 65 278 G3/4″ 1080x750x1000
10 1.4 11 65 278 G3/4″ 1080x750x1000
13 1.2 11 65 278 G3/4″ 1080x750x1000
7 2.52 15 66 299 G3/4″ 1080x750x1000
8 2.4 15 66 299 G3/4″ 1080x750x1000
10 2.1 15 66 299 G3/4″ 1080x750x1000
13 1.7 15 66 299 G3/4″ 1080x750x1000
7 3.2 18.5 67 452 G1″ 1380x850x1160
8 3.0 18.5 67 452 G1″ 1380x850x1160
10 2.7 18.5 67 452 G1″ 1380x850x1160
13 2.3 18.5 67 452 G1″ 1380x850x1160
7 3.7 22 68 467 G1″ 1380x850x1160
8 3.6 22 68 467 G1″ 1380x850x1160
10 3.4 22 68 467 G1″ 1380x850x1160
13 2.8 22 68 467 G1″ 1380x850x1160
7 5.1 30 69 452 G1″ 1230x850x1110
8 5.0 30 69 452 G1″ 1230x850x1110
10 4.9 30 69 452 G1″ 1230x850x1110
13 4.7 30 69 452 G1″ 1230x850x1110
7 6.5 37 69 583 G1 1/2″ 1340x950x1210
8 6.2 37 69 583 G1 1/2″ 1340x950x1210
10 5.6 37 69 583 G1 1/2″ 1340x950x1210
13 5.0 37 69 583 G1 1/2″ 1340x950x1210
7 8.0 45 70 688 G1 1/2″ 1500x1000x1300
8 7.7 45 70 688 G1 1/2″ 1500x1000x1300
10 7.0 45 70 688 G1 1/2″ 1500x1000x1300
13 6.7 45 70 688 G1 1/2″ 1500x1000x1300
7 10.4 55 70 1055 G2″ 1900x1250x1570
8 9.8 55 70 1055 G2″ 1900x1250x1570
10 9.1 55 70 1055 G2″ 1900x1250x1570
13 7.8 55 70 1055 G2″ 1900x1250x1570
7 13.6 75 72 1129 G2″ 1900x1250x1570
8 13.1 75 72 1129 G2″ 1900x1250x1570
10 11.8 75 72 1129 G2″ 1900x1250x1570
13 9.8 75 72 1129 G2″ 1900x1250x1570
7 16.1 90 73 1220 G2″ 2000*1250*1680
8 15.5 90 73 1220 G2″ 2000*1250*1680
10 14.8 90 73 1220 G2″ 2000*1250*1680
13 12.5 90 73 1220 G2″ 2000*1250*1680
7 21.2 110 73 1970 G1 1/2″ 2400x1630x1980
8 19.6 110 73 1970 G1 1/2″ 2400x1630x1980
10 17.8 110 73 1970 G1 1/2″ 2400x1630x1980
13 15.5 110 73 1970 G1 1/2″ 2400x1630x1980
7 24.1 132 73 2120 G1 1/2″ 2400x1630x1980
8 23.2 132 73 2120 G1 1/2″ 2400x1630x1980
10 19.5 132 73 2120 G1 1/2″ 2400x1630x1980
13 17.8 132 73 2120 G1 1/2″ 2400x1630x1980
7 28.8 160 73 3620 G1 1/2″ 2800x1820x2150
8 27.8 160 73 3620 G1 1/2″ 2800x1820x2150
10 23 160 73 3620 G1 1/2″ 2800x1820x2150
13 20 160 73 3620 G1 1/2″ 2800x1820x2150
7 32.5 185 74 3920 DN85 2800x1820x2150
8 31.2 185 74 3920 DN85 2800x1820x2150
10 27.5 185 74 3920 DN85 2800x1820x2150
13 25.8 185 74 3920 DN85 2800x1820x2150
7 36.8 220 76 4800 DN100 3000x1900x1930
8 34.7 220 76 4800 DN100 3000x1900x1930
10 31.5 220 76 4800 DN100 3000x1900x1930
13 29.5 220 76 4800 DN100 3000x1900x1930
7 43 250 76 5200 DN100 3000x1900x1930
8 41.5 250 76 5200 DN100 3000x1900x1930
10 38 250 76 5200 DN100 3000x1900x1930
13 34.9 250 76 5200 DN100 3000x1900x1930

Industrial equipment, printing service, pipelines, power plants, oil&gas, oil refinery, coating, painting,
plastics, steel industry, rubber, mechanical, blow molding, color sorter machine, shipyard, sandblasting, 
metallurgy, etc.

To provide the right equipment to you, please send us your detailed requriements.

1 Q: How about the quality of products?

   A: We are an authorized distributor of Atlas Copco. Don’t worry about the quality and service.

2 Q: How long is your delivery lead time?

   A: If there is stock, the lead time is about 3 working days after we get the payment if need to
       be produced, it depends.

3 Q: How about your overseas after-sale service?

   A: (1)Provide customers with installation and commissioning online instructions.

       (2)Worldwide agents and after service available.

4 Q: Can you accept OEM&ODM orders?

   A: Yes, we have a professional design team, OEM&ODM orders are highly welcomed.


Warranty: 1 Year
Lubrication Style: Lubricated
Cooling System: Air Cooling


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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 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

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 Is a Screw Compressor?

A screw compressor is a type of positive displacement compressor that operates based on the principle of rotary motion. Here’s a detailed explanation:

Working Principle:

A screw compressor consists of two helical rotors, typically called male and female rotors, that rotate in opposite directions within a housing. The rotors have specially designed profiles that interlock with each other, creating a series of compression chambers as they rotate. As the rotors rotate, the volume of these chambers decreases, compressing the air or gas trapped inside.

Compression Process:

As the air or gas enters the screw compressor, it gets trapped between the rotors’ lobes or threads. As the rotors continue to rotate, the trapped air or gas is carried along the length of the rotors and gradually compressed. The compression occurs continuously and smoothly as the air or gas moves from the suction side to the discharge side of the compressor. The interlocking rotors ensure a continuous flow of compressed air or gas without pulsation.

Oil-Injected and Oil-Free Variants:

Screw compressors are available in both oil-injected and oil-free variants. In oil-injected screw compressors, a small amount of lubricating oil is injected into the compression chamber to provide lubrication, cooling, and sealing between the rotors. The oil also helps in reducing friction and minimizing wear. Oil-injected screw compressors are commonly used in various industrial applications where a small amount of oil in the compressed air is acceptable.

On the other hand, oil-free screw compressors are designed to operate without the need for oil lubrication. These compressors use specialized rotor coatings, such as PTFE (polytetrafluoroethylene) or other non-stick materials, to reduce friction and prevent the need for oil. Oil-free screw compressors are often favored in applications where oil-free and contaminant-free compressed air is essential, such as in food and beverage, pharmaceutical, and electronics industries.


Screw compressors are widely used in various industries for a range of applications. They are commonly employed in manufacturing plants, refineries, power generation facilities, and other industrial settings to supply compressed air or gas for pneumatic tools, process equipment, air conditioning systems, and more. The ability of screw compressors to deliver a continuous flow of compressed air or gas makes them suitable for applications that require a steady and reliable source of compressed air.


Screw compressors offer several advantages compared to other types of compressors. They provide high efficiency and can deliver a large volume of compressed air or gas. The continuous compression process results in smooth operation with minimal pulsation. Additionally, screw compressors are known for their compact design, low vibration levels, and relatively quiet operation.

In summary, a screw compressor is a rotary positive displacement compressor that uses interlocking helical rotors to compress air or gas. It operates based on a continuous compression process and is available in both oil-injected and oil-free variants. Screw compressors find widespread use in various industries for applications that require a reliable source of compressed air or gas.

China wholesaler Industrial Screw Type 11kw Air Compressors Chinese Manufacturer Direct Driven Permanet Magnet Variable Speed/Frequency (VSD/VFD) Oil Lubricated CHINAMFG   air compressor priceChina wholesaler Industrial Screw Type 11kw Air Compressors Chinese Manufacturer Direct Driven Permanet Magnet Variable Speed/Frequency (VSD/VFD) Oil Lubricated CHINAMFG   air compressor price
editor by CX 2023-10-11

China best SCR1500lb 3bar Chinese Low Pressure Compressor Industry Screw Air Compressor near me manufacturer

Merchandise Description

Item Specialized Description

Item Functions

one.Specially developed PM motor.

two.Improved strength savings.

three.Lower Energy Consumption,Minimal operating,servicing cost.

4.Aptitude and smart Control, built-in touch-display PLC displayer.

five.Exclusive safe units make complete compressor a lot more security, much more secure,lest sound,lest vitality Loss.

six.Simple to set up,function,keep.

Specifically made PM motor:

The PM motor effectiveness is even larger than IE3 premium efficiency motors. The motor employs large overall performance magnetic materials supplying a lot of positive aspects this kind of as bearing totally free operation, grease totally free maintenance, direct 1:1 CZPT without having transmission losses, low sounds and minimal vibration major to a compact framework.

Improved Power Cost savings:

When demand is minimal the PM low pressure compressor first of all lowers the pace to maintain the appropriate stream demand from customers. If the air demand from customers stops the compressor enters standby mode, conserving further vitality. The compressor routinely restarts and runs when the strain drops below its setpoint.

The most recent generation clever touchscreen controller:

SCR’s most current touchscreen interface allows simple intelligent control for your compressor. Stress and scheduling moments can be effortlessly programmed allowing you to automatically start and cease the compressor to match creation occasions. Remote operation and genuine time monitoring are built in the controller as common.

Specifically made oil CZPT method:

The oil method has been specifically developed to decrease upkeep downtime and increase the durations in between maintenance visits.

Product Classes



About SCR


Kinds of Air Compressors

There are many sorts of Air Compressors accessible on the marketplace. Discover which one particular is correct for your demands and what tends to make one particular better than an additional. Discover out far more about One-phase models, Oil-cost-free designs, and Reduced-noise versions. This article will describe these types and help you decide which a single you require. You can also understand about Air Compressors that have one-stage compressors. If you are looking for a high-quality compressor, this article will support you pick a device.

Air Compressors

Air compressors perform by forcing atmospheric air by means of an inlet valve. As the piston moves down, it pulls atmospheric air into the chamber. As the piston rises, it forces the compressed air out of the cylinder via an exhaust valve. One of the most common kinds of air compressor is the reciprocating variety. One more kind of compressor is a one-stage piston. These types of compressors compress air in 1 stroke – equal to the full rotation of the piston’s crankshaft.
These products change electrical or mechanical power into pressurized air. When air is compressed, its volume decreases, increasing its stress. Air compressors usually have a least pressure of 30 bars. The decrease strain band is the assortment of air force. Most compressors are controlled separately, but community controls can be employed to interconnect a number of compressors. This sort of controller will not work for all varieties of compressors. There are other sorts of air compressors that can converse with every other.
Compressed air has multiple programs in all types of industries. In agriculture, it can energy pneumatically run content managing equipment for irrigation and crop spraying. Dairy equipments also use compressed air. Compressors are also used in the pharmaceutical business for mixing tanks, packaging, and conveyor techniques. Moveable air compressors, which can be run by diesel gasoline, are regularly employed at remote drilling sites. Transportable air compressors are also typically utilized in oil and fuel. They can be employed to remotely manage valves and set up reactor rods.
No matter whether you use an air compressor for agricultural needs or in a production location, there are some characteristics to contemplate when choosing an air compressor for your needs. A great compressor will have a security unit. It will immediately shut off the input air and output air after adequate compressing has been attained. These characteristics will help your air compressor remain effective and defend your tools. The basic safety unit is an critical attribute of any air compressor to increase its all round performance.
Vane air compressors are the most common type. They are generally smaller and less strong than reciprocating piston compressors, so you can use one particular of these for apps that are below 100 horsepower. The vane air compressors have lower compression ratios and high capacities, but they are typically restricted to minimal-electricity purposes. Vane compressors have a tendency to operate very hot, and they typically have a reduced compression ratio. It is critical to pick the right oil viscosity for your compressor.

One-stage models

When evaluating one-phase air compressors, seem for the time period “levels.” Multi-stage compressors use two phases and can take care of a lot more ability and force. 1 phase involves pressurizing air utilizing a piston and a reduce-pressure cylinder. This compressed air is then moved to a storage tank. Solitary-phase types have a tendency to be a lot more strength-efficient than their two-stage counterparts. But if you do not require a higher-force cylinder, a solitary-phase air compressor can be the very best choice.
Despite the fact that solitary-phase air compressors generate significantly less electricity, they can generate ample air to power pneumatic equipment and other pneumatic gear. These single-phase units are most valuable for scaled-down-scale home projects and Do-it-yourself projects. For a lot more industrial needs, a dual-stage product is the very best choice. But if you might be in a hurry, a one-phase unit may possibly be sufficient. Ultimately, it relies upon on what you plan to do with the air compressor.
One-stage air compressors characteristic a one cylinder, one piston stroke for every revolution of pressurized air. One-stage compressors are normally smaller sized and a lot more compact, making them a very good choice for smaller sized operate environments. Their cfm capability (cubic feet per moment) is an critical indicator of operating ability. If you program to use several pneumatic instruments, you will almost certainly need a larger cfm product. Equally, the horsepower of one-stage compressors indicates its operating capability. A single horsepower moves 550 kilos per foot for every moment.
Multi-phase air compressors are typically much more high-priced and much more vitality-successful than one-stage units, but they can offer you larger air flow charges. Whilst they could be a lot more complicated, they can reduced standard functioning expenditures. If you plan on using your air compressor for industrial or professional use, a dual-phase model might be the greatest option. Nevertheless, if you might be planning to use the air compressor for mass creation, a one-phase product may be the greatest choice.
Solitary-stage air compressors have the same piston dimensions and amount of inlets, although twin-stage designs have a smaller sized first piston and a much longer 2nd piston. Both have a cooling tube in in between the two pistons to lessen the air temperature before the next spherical of compression. The one-stage design is usually tiny and transportable, whilst the double-phase air compressor is stationary. These compressors can the two be stationary and big.

Lower-sound versions

Even with its identify, reduced-sounds models of air compressors are not all the very same. The noise level of a compressor can be influenced by many aspects, including the power supply and proximity to the equipment. Reciprocal compressors are usually louder than electrical ones simply because of their many transferring parts. By contrast, rotary-screw and scroll compressors have much less shifting components and are quieter.
The sound level of a fuel-run air compressor can be extremely high, producing it unsuitable for use indoors. To combat this dilemma, you can select an electrical model. The sound level of a compressor is mostly induced by motor friction. The protect of a piston is also a main factor in sounds, as pistons with nominal addresses will produce a whole lot of sounds. Formerly, oil was essential for a silent compressor. However, this has modified thanks to the medical industry’s desire for oil-cost-free types.
The Nuair EC28M Peaceful Air Compressor is another model that characteristics silent procedure. This air compressor tends to make 59dB of sound. This level is reduced sufficient to let you to have on typical discussions even though it cycles. In addition, this compressor has an industrial oil-cost-free pump and a 2.8 Amp direct-push induction motor. These two functions make it a fantastic selection for organizations.
Reduced-sounds types of air compressors are accessible for the building industry. However, these compressors are not essentially minimal-high quality, which is why you must consider the sounds amount of your air tool just before purchasing 1. The specialists at Mid-Tech can suggest the lower-sounds types for your particular application and room. Noise can distract people who function in close proximity to the air compressor. That is why numerous organizations now choose for these versions.

Oil-cost-free types

A number of oil-free designs of air compressors are accessible, but what makes them unique? Oil-free compressors don’t incorporate oil, so they are lubricated by grease alternatively. They’re a great option if you might be doing work with a little compressor and don’t want to danger harmful it. On the other hand, oil-cost-free versions do create considerable amounts of warmth, which can injury the compressor. Higher force can grind the compressor in opposition to by itself, or even warp it.
A handful of words of information can assist you decide on the greatest oil-totally free air compressor for your requirements. For illustration, a compressor’s horsepower is a measurement of how powerful the motor is. Larger horsepower means a greater PSI or ACFM. You can also use the ACFM to examine the two. Scroll technology is a present day air compression system that employs a stationary and mobile spiral. This decreases the volume of air in the compressor by directing it to the heart.
Purchasing an oil-totally free air compressor doesn’t have to be a complicated task, even though. A good distributor can recommend you on what type of oil-totally free air compressor is appropriate for you. This way, you can save cash and enjoy peace of thoughts while making use of your air compressor. And, of system, the best way to get a great offer on an air compressor is to communicate to a distributor who is experienced about the goods available.
An oil-cost-free air compressor is a fantastic selection for businesses that are delicate to the contamination of air. For instance, in the pharmaceutical and meals sector, a minuscule oil could spoil a merchandise or even harm generation equipment. Oil-totally free air compressors usually have reduce routine maintenance fees than oil-flooded designs due to the fact there are much less transferring parts. Simply because of this, oilless air compressors call for less maintenance and may even now want to be replaced from time to time.
A number of rewards of an oil-totally free air compressor above an oil-lubricated a single consist of decrease sound amounts. Oil-cost-free air compressors have a tendency to be less noisy and operate more quietly than oil-injected kinds, but you ought to nevertheless carefully weigh the professionals and negatives prior to creating a determination. Also, contemplate how much you use your air compressor before selecting a design. The execs outweigh the disadvantages. In the conclude, you are going to be happy you selected an oil-cost-free air compressor.

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