China Professional High Quality 8.5-12.5bar 55 Kw Drict-Driven Low Noise Screw Air Compressor wholesaler

Product Description

High Quality 8.5-12.5Bar 55 Kw Drict-Driven Low Noise Screw Air Compressor

Technical Parameters Of PM Variable speed screw air compressor:

Model Work pressure Capacity Power Noise Inlet and outlet diameters of cooling water Water inlet & outlet
Lubricating water
Dimensions Weight Air outlet diameter


WZS-06PMA 0.8 0.3~0.78 5.5 57 3/4″ 1.5 10 800x800x1100 460 3/4″
1.0 0.2~0.65
WZS-08PMA 0.8 0.35~1.17 7.5 57 3/4″ 2 10 800x800x1100 510 3/4″
1.0 0.3~1.05
1.25 0.24~0.81
WZS-11PMA 0.8 0.54~1.72 11 60 1″ 2.5 26 1200x800x1300 620 3/4″
1.0 0.45~1.42
1.25 0.35~1.10
WZS-15PMA 0.8 0.75~2.43 15 60 1″ 3.5 26 1200x800x1300 670 1″
1.0 0.65~2.17
1.25 0.6~1.85
WZS-18PMA 0.8 0.9~3.13 18.5 63 1″ 4 30 1400x1000x1520 730 1″
1.0 0.9~2.82
1.25 0.6~2.05
WZS-22PMA 0.8 1.1~3.62 22 63 1 1/2″ 5 30 1400x1000x1520 780 1″
1.0 0.97~3.21
1.25 0.85~2.78
WZS-30PMA 0.8 1.55~5.12 30 66 1 1/2″ 7 40 1500x1150x1500 1150 1 1/2″
1.0 1.255~4.43
1.25 1.1~3.63
WZS-37PMA 0.8 1.91~6.30 37 66 1 1/2″ 9 40 1500x1150x1500 1200 1 1/2″
1.0 1.60~5.33
1.25 1.42~4.77
WZS-45PMA 0.8 2.50~8.30 45 68 1 1/2″ 10 90 1800x1300x1750 1490 2″
1.0 1.91~6.30
1.25 1.70~5.56
WZS-55PMA 0.8 3.0~9.76 55 69 1 1/2″ 12 100 1800x1300x1750 1570 2″
1.0 2.60~8.55
1.25 2.30~7.67
WZS-75PMA 0.8 3.95~13.00 75 72 1 1/2″ 18 100 1800x1300x1750 1750 2″
1.0 3.40~11.50
1.25 3.0~9.70
WZS-90PMA 0.8 5.0~16.60 90 73 1 1/2″ 20 120 2200x1550x1800 2450 2 1/2″
1.0 4.30~14.66
1.25 3.72~12.60
WZS-110PMA 0.8 6.0~19.97 110 77 1 1/2″ 24 120 2200x1550x1800 2580 2 1/2″
1.0 5.0~16.66
1.25 4.65~15.56
WZS-132PMA 0.8 6.75~22.52 132 77 2″ 30 120 2200x1550x1800 2700 2 1/2″
1.0 6.0~19.97
1.25 5.07~16.90
WZS-160PMA 0.8 8.5~28.11 160 79 3″ 35 160 3000x1800x2100 3900 3″
1.0 706~25.45
1.25 6.7~22.52
WZS-185PMA 0.8 10~33.97 185 79 3″ 38 160 3000x1800x2100 4050 3″
1.0 8.72~29.00
1.25 7075~25.210
WZS-200PMA 0.8 11.2~36.75 200 80 4″ 42 200 3100x1850x2100 4200 4″
1.0 9.68~32.78
1.25 9.2~29.24
WZS-220PMA 0.8 12.2~39.67 220 80 4″ 47 200 3100x1850x2100 4400 4″
1.0 11.2~36.75
1.25 9.0~29.63
WZS-250PMA 0.8 13.5~44.78 250 80 4″ 53 200 3100x1850x2100 4800 4″
1.0 12.3~39.67
1.25 10.2~33.97


Before quotation:
1.Before quoting, what should users offer?
1).Discharge pressure (Bar, Mpa or Psi)
2).Air discharge/Air flow/Air capacity (m3/min or CFM)
3).Power supply (220/380V, 50/60Hz, 3Phase)

2.If I don’t know the pressure and air flow, what should I do?
1).Take the picture of nameplate, we will advise the suitable air compressor to you.
2).Tell us what industry you are, we can advise the suitable 1 (so as to air tank / air dryer / air filters).

High Efficiency PM Motor and Energy Saving
*With the high-performance permanent magnet material, PM motor won’t lose magnetism even under 120°c and can run for more than 15 years.
*No motor bearing: permanent magnet rotors is installed directly on the stretch out shaft of Male rotor. This structure doesn’t have the bearing and eliminates the motor bearing fault. 
*Comparing to normal variable speed motor, the permanent magnet synchronous motor performs with even better energy efficiency. Especially in the low-speed condition, it can still maintain a high motor efficiency.

Delivery: time 5-25 working days after payment receipt confirmed(based on actual quantity)
packing:standard export packing. or customized packing as your
Professional: goods shipping forwarder.

Q: OEM/ODM, or customers logo printed is available?
Yes, OEM/ODM, customers logo is welcomed.

Q:  Delivery date?
Usually 5-25 workdays after receiving deposit, specific delivery date based on order quantity

Q: what’s your payment terms?
Regularly doing 30% deposit and 70% balance by T/T, Western Union, Paypal, otherpayment terms also can be discussed based on our cooperation.

Q: How to control your quality?
We have professional QC team, control the quality during the mass production and inspectthe completely goods before shipping.

Q:  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.

Q: come to China before, can you be my guide in China?
We are happy to provide you orservice, such as booking ticket, pick up at the airport, booking hotel, accompany visiting market or factory

Thank you very much for viewing this page, and wish you a nice day!

Contacts:Vicky Liu
Mob: -173-1655-1856

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


air compressor

How are air compressors used in the food and beverage industry?

Air compressors play a vital role in the food and beverage industry, providing a reliable source of compressed air for various applications. Here are some common uses of air compressors in this industry:

1. Packaging and Filling:

Air compressors are extensively used in packaging and filling operations in the food and beverage industry. Compressed air is utilized to power pneumatic systems that control the movement and operation of packaging machinery, such as filling machines, capping machines, labeling equipment, and sealing devices. The precise and controlled delivery of compressed air ensures accurate and efficient packaging of products.

2. Cleaning and Sanitization:

Air compressors are employed for cleaning and sanitization purposes in food and beverage processing facilities. Compressed air is used to operate air-powered cleaning equipment, such as air blowguns, air-operated vacuum systems, and air knives. It helps remove debris, dust, and contaminants from production lines, equipment, and hard-to-reach areas. Additionally, compressed air is used for drying surfaces after cleaning and for applying sanitizing agents.

3. Cooling and Refrigeration:

In the food and beverage industry, air compressors are utilized in cooling and refrigeration systems. Compressed air is used to drive air compressors in refrigeration units, enabling the circulation of refrigerants and maintaining optimal temperatures for food storage and preservation. The controlled airflow provided by the compressors facilitates efficient cooling and refrigeration processes.

4. Aeration and Mixing:

Air compressors are used for aeration and mixing applications in the food and beverage industry. Compressed air is introduced into processes such as fermentation, dough mixing, and wastewater treatment. It helps in promoting oxygen transfer, enhancing microbial activity, and facilitating proper mixing of ingredients or substances, contributing to the desired quality and consistency of food and beverage products.

5. Pneumatic Conveying:

In food processing plants, air compressors are employed for pneumatic conveying systems. Compressed air is used to transport bulk materials such as grains, powders, and ingredients through pipes or tubes. It enables the gentle and efficient movement of materials without the need for mechanical conveyors, reducing the risk of product damage or contamination.

6. Quality Control and Testing:

Air compressors are utilized in quality control and testing processes within the food and beverage industry. Compressed air is used for leak testing of packaging materials, containers, and seals to ensure product integrity. It is also employed for spraying air or gases during sensory analysis and flavor testing.

7. Air Agitation:

In certain food and beverage production processes, air compressors are used for air agitation. Compressed air is introduced into tanks, mixing vessels, or fermentation tanks to create turbulence and promote mixing or chemical reactions. It aids in achieving consistent product quality and uniform distribution of ingredients or additives.

It is important to note that air compressors used in the food and beverage industry must meet strict hygiene and safety standards. They may require specific filtration systems, oil-free operation, and compliance with food safety regulations to prevent contamination or product spoilage.

By utilizing air compressors effectively, the food and beverage industry can benefit from improved productivity, enhanced product quality, and efficient processing operations.

air compressor

Are there differences between single-stage and two-stage air compressors?

Yes, there are differences between single-stage and two-stage air compressors. Here’s an in-depth explanation of their distinctions:

Compression Stages:

The primary difference between single-stage and two-stage air compressors lies in the number of compression stages they have. A single-stage compressor has only one compression stage, while a two-stage compressor has two sequential compression stages.

Compression Process:

In a single-stage compressor, the entire compression process occurs in a single cylinder. The air is drawn into the cylinder, compressed in a single stroke, and then discharged. On the other hand, a two-stage compressor utilizes two cylinders or chambers. In the first stage, air is compressed to an intermediate pressure in the first cylinder. Then, the partially compressed air is sent to the second cylinder where it undergoes further compression to reach the desired final pressure.

Pressure Output:

The number of compression stages directly affects the pressure output of the air compressor. Single-stage compressors typically provide lower maximum pressure levels compared to two-stage compressors. Single-stage compressors are suitable for applications that require moderate to low air pressure, while two-stage compressors are capable of delivering higher pressures, making them suitable for demanding applications that require greater air pressure.


Two-stage compressors generally offer higher efficiency compared to single-stage compressors. The two-stage compression process allows for better heat dissipation between stages, reducing the chances of overheating and improving overall efficiency. Additionally, the two-stage design allows the compressor to achieve higher compression ratios while minimizing the work done by each stage, resulting in improved energy efficiency.


Intercooling is a feature specific to two-stage compressors. Intercoolers are heat exchangers placed between the first and second compression stages. They cool down the partially compressed air before it enters the second stage, reducing the temperature and improving compression efficiency. The intercooling process helps to minimize heat buildup and reduces the potential for moisture condensation within the compressor system.


The choice between a single-stage and two-stage compressor depends on the intended application. Single-stage compressors are commonly used for light-duty applications such as powering pneumatic tools, small-scale workshops, and DIY projects. Two-stage compressors are more suitable for heavy-duty applications that require higher pressures, such as industrial manufacturing, automotive service, and large-scale construction.

It is important to consider the specific requirements of the application, including required pressure levels, duty cycle, and anticipated air demand, when selecting between a single-stage and two-stage air compressor.

In summary, the main differences between single-stage and two-stage air compressors lie in the number of compression stages, pressure output, efficiency, intercooling capability, and application suitability.

air compressor

What maintenance is required for air compressors?

Maintaining air compressors is essential to ensure their optimal performance, longevity, and safe operation. Regular maintenance helps prevent breakdowns, improves efficiency, and reduces the risk of accidents. Here are some key maintenance tasks for air compressors:

1. Regular Inspection: Perform visual inspections of the air compressor to identify any signs of wear, damage, or leaks. Inspect the compressor, hoses, fittings, and connections for any abnormalities. Pay attention to oil leaks, loose bolts, and worn-out components.

2. Oil Changes: If your air compressor has an oil lubrication system, regular oil changes are crucial. Follow the manufacturer’s recommendations for the frequency of oil changes and use the recommended oil type. Dirty or degraded oil can impact compressor performance and lead to premature wear.

3. Air Filter Cleaning or Replacement: Clean or replace the air filter regularly to ensure proper air intake and prevent contaminants from entering the compressor. Clogged or dirty filters can restrict airflow and reduce efficiency.

4. Drain Moisture: Air compressors produce moisture as a byproduct of the compression process. Accumulated moisture in the tank can lead to rust and corrosion. Drain the moisture regularly from the tank to prevent damage. Some compressors have automatic drains, while others require manual draining.

5. Belt Inspection and Adjustment: If your compressor has a belt-driven system, inspect the belts for signs of wear, cracks, or tension issues. Adjust or replace the belts as necessary to maintain proper tension and power transmission.

6. Tank Inspection: Inspect the compressor tank for any signs of corrosion, dents, or structural issues. A damaged tank can be hazardous and should be repaired or replaced promptly.

7. Valve Maintenance: Check the safety valves, pressure relief valves, and other valves regularly to ensure they are functioning correctly. Test the valves periodically to verify their proper operation.

8. Motor and Electrical Components: Inspect the motor and electrical components for any signs of damage or overheating. Check electrical connections for tightness and ensure proper grounding.

9. Keep the Area Clean: Maintain a clean and debris-free area around the compressor. Remove any dirt, dust, or obstructions that can hinder the compressor’s performance or cause overheating.

10. Follow Manufacturer’s Guidelines: Always refer to the manufacturer’s manual for specific maintenance instructions and recommended service intervals for your air compressor model. They provide valuable information on maintenance tasks, lubrication requirements, and safety precautions.

Regular maintenance is vital to keep your air compressor in optimal condition and extend its lifespan. It’s also important to note that maintenance requirements may vary depending on the type, size, and usage of the compressor. By following a comprehensive maintenance routine, you can ensure the reliable operation of your air compressor and maximize its efficiency and longevity.

China Professional High Quality 8.5-12.5bar 55 Kw Drict-Driven Low Noise Screw Air Compressor   wholesaler China Professional High Quality 8.5-12.5bar 55 Kw Drict-Driven Low Noise Screw Air Compressor   wholesaler
editor by CX 2023-12-08