China wholesaler 2021 New Design Energy Save AC Power Oil Injected 75kw 0.7MPa Screw Air Compressor for Painting air compressor lowes

Product Description

Model Power
(KW)
Capacity/Pressure
( m3/bar)
Outlet size Weight
(kg)
Unit size mm
(LxWxH)
WZS-30PMII 22 5m3/6.5bar RP
1 1/2
760 1500x850x1280
4.1m3/8.5bar
3.5m3/10.5bar
3.2m3/12.5bar
WZS-40PMII 30 7.0m3/6.5bar RP
1 1/2
980 1950x1250x1650
6.4m3/8.5bar
4.9m3/10.5bar
4.2m3/12.5bar
WZS-50PMII 37 10m3/6.5bar RP
1 1/2
1080 1950x1250x1650
7.1m3/8.5bar
5.9m3/10.5bar
5.4m3/12.5bar
WZS-60PMII 45 12m3/6.5bar RP2 1980 1950x1250x1650
9.8m3/8.5bar
7.8m3/10.5bar
6.5m3/12.5bar
WZS-75PMII 55 16m3/6.5bar RP2 2180 2500x1650x1900
12.5m3/8.5bar
10.2m3/10.5bar
8.6m3/12.5bar
WZS-100PMII 75 18.5m3/6.5bar RP2 2280 2500x1650x1900
16.5m3/8.5bar
13m3/10.5bar
10m3/12.5bar
WZS-125PMII 90 23m3/6.5bar DN65 3200 3000x1800x2000
18.5m3/8.5bar
15.5m3/10.5bar
12m3/12.5bar
WZS-150PMII 110 27.5m3/6.5bar DN65 3360 3000x1800x2000
22.6m3/8.5bar
18.5m3/10.5bar
14.8m3/12.5bar
WZS-180PMII 132 32.5m3/6.5bar DN80 3560 3000x1800x2000
28m3/8.5bar
22.5m3/10.5bar
18.5m3/12.5bar
WZS-220PMIII 160 37.5m3/6.5bar DN80 3850 3380x1950x2200
32.6m3/8.5bar
26.8m3/10.5bar
22.8m3/12.5bar
WZS-250PMII 185 40.6m3/6.5bar DN80 4600 3380x1950x2200
37.8m3/8.5bar
32.5m3/10.5bar
26.6m3/12.5bar
WZS-270PMII 200 49m3/6.5bar DN100 5200 3380x1950x2200
41m3/8.5bar
38.5m3/10.5bar
31.5m3/12.5bar
WZS-300PMII 220 54.8m3/6.5bar DN125 6200 4000x2250x2400
49m3/8.5bar
41.5m3/10.5bar
37.5m3/12.5bar
WZS-350PMII 250 61m3/6.5bar DN125 6600 4000x2250x2400
54m3/8.5bar
45.5m3/10.5bar
40.5m3/12.5bar

Q1:Do you offer OEM/ODM/Customer’s logo print?
A1:Yes,OEM/ODM,Customer’s logo are welcomed.  

Q2:Delivery Time?
A2:Usually 5-25 days after receiving deposite, specific delivery date depends on order quantity.  

Q3: What’s your payment terms?
A3:Regularly 30% deposite and 70% balance by T/T,Western Union,Paypal ,other payment terms also can be discussed based on our cooperation.  

Q4:How to control your quality?
A4:We have professional QC team,control the quality during the mass production and inspect all goods before delivery.  
Q5:If we don’t have shipping forwarders in China, can you do that for us?
A5:We can offer best shipping line to ensure you can get the goods timely  at best price.  

Q6:I never come to China before,can you be my guide in China?
A6:We are happy to provide you one-stop service,such as booking the ticket,pick up at the airport, booking hotel,accompany visiting market or factory.

After-sales Service: Video Technical Support
Warranty: 1 Year
Lubrication Style: Oil-less
Cooling System: Air Cooling
Power Source: AC Power
Cylinder Position: Vertical
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

What Is the Role of Control Systems in Screw Compressor Operation?

Control systems play a crucial role in the operation of screw compressors. Here’s a detailed explanation:

Screw compressors are complex machines that require precise control and monitoring for optimal performance and efficiency. Control systems provide the necessary intelligence and automation to regulate various aspects of screw compressor operation. Here are the key roles of control systems:

1. Start-up and Shutdown Control:

Control systems manage the start-up and shutdown sequences of screw compressors. During start-up, the control system ensures a gradual ramp-up of motor speed and system pressure to prevent sudden surges and excessive wear on components. During shutdown, it safely brings the compressor to a stop and performs necessary cooling and ventilation processes.

2. Load and Unload Control:

Screw compressors often feature load and unload operation to match compressed air supply with demand. The control system monitors system pressure, flow requirements, and other parameters to determine when to load or unload the compressor. It engages or disengages the compressor’s capacity control mechanism, such as inlet modulation valves or variable-speed drives, to maintain optimal operation at varying loads.

3. Pressure Control:

Control systems regulate the discharge pressure of screw compressors. They continuously monitor the system pressure and adjust compressor operation to maintain the desired pressure setpoint. The control system modulates the compressor’s capacity, adjusts the speed of the drive motor, or controls the opening and closing of inlet or discharge valves to achieve the target pressure.

4. Temperature Control:

Control systems monitor and control various temperature parameters within the screw compressor system. They ensure that the compressor operates within safe temperature limits by monitoring coolant temperatures, lubricant temperatures, and interstage or discharge temperatures. If temperature limits are exceeded, the control system may activate cooling mechanisms, adjust operating parameters, or trigger alarms and shutdowns to prevent damage.

5. Monitoring and Protection:

Control systems provide comprehensive monitoring and protection functions for screw compressors. They continuously collect data from various sensors and instruments, such as pressure sensors, temperature sensors, vibration sensors, and current sensors. The control system analyzes this data to detect abnormalities, malfunctions, or potential failures. It can initiate alarms, shutdowns, or safety interlocks to protect the compressor and associated equipment.

6. Energy Management:

Control systems optimize energy efficiency in screw compressor operation. They analyze system demand, performance characteristics, and energy consumption to make intelligent decisions regarding load modulation, capacity control, and motor speed adjustments. By optimizing the compressor’s operation, the control system helps reduce energy consumption, operating costs, and environmental impact.

7. Remote Monitoring and Control:

Modern control systems often offer remote monitoring and control capabilities. They can be integrated into supervisory control and data acquisition (SCADA) systems or connected to networked platforms. Remote access allows operators to monitor compressor performance, adjust operating parameters, receive alarms, and perform diagnostics from a central control room or via mobile devices.

In summary, control systems play a vital role in the operation of screw compressors by providing intelligent control, monitoring, and protection. They manage start-up and shutdown sequences, regulate load and unload operation, control pressure and temperature, monitor system parameters, optimize energy efficiency, and enable remote monitoring and control. By effectively managing the compressor’s operation, control systems contribute to reliable performance, energy efficiency, and overall system optimization.

air compressor

How Does a Screw Compressor Work?

A screw compressor operates based on a unique rotary positive displacement principle. Here’s a detailed explanation:

Working Principle:

A screw compressor consists of two helical rotors, typically referred to as 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. The compression chambers gradually reduce in volume as the rotors rotate, compressing the air or gas trapped inside.

Suction Process:

The suction process begins when the rotors start rotating. As they rotate, the helical lobes or threads on the rotors create expanding spaces between them. The expanding spaces draw in the air or gas from the inlet port, allowing it to enter the compression chamber. The suction process continues as the rotors rotate, and the expanding spaces move the air or gas towards the discharge side of the compressor.

Compression Process:

As the air or gas enters the compression chamber, it gets trapped between the interlocking lobes or threads of the rotors. As the rotors continue to rotate, the trapped air or gas is carried along the length of the rotors. The volume of the compression chamber gradually decreases as the lobes or threads of the rotors intermesh, compressing the air or gas. The compression process is continuous and smooth as the air or gas moves from the suction side to the discharge side of the compressor.

Discharge Process:

Once the air or gas reaches the discharge end of the compression chamber, it is pushed towards the outlet port. The compressed air or gas is then released from the compressor through the outlet port to be used for various applications.

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. The oil provides lubrication, cooling, and sealing between the rotors, reducing friction and minimizing wear. The oil-injected variant is 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, 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 eliminate the need for oil. Oil-free screw compressors are preferred in applications that require oil-free and contaminant-free compressed air, such as in the food and beverage, pharmaceutical, and electronics industries.

In summary, a screw compressor works by utilizing interlocking helical rotors to compress air or gas. The rotating rotors draw in the air or gas during the suction process, and as they rotate, the trapped air or gas is compressed within the compression chamber. The compressed air or gas is then discharged from the compressor. Screw compressors are available in oil-injected and oil-free variants, catering to different application requirements.

China wholesaler 2021 New Design Energy Save AC Power Oil Injected 75kw 0.7MPa Screw Air Compressor for Painting   air compressor lowesChina wholesaler 2021 New Design Energy Save AC Power Oil Injected 75kw 0.7MPa Screw Air Compressor for Painting   air compressor lowes
editor by CX 2023-10-26

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