China Hot selling Water Lubrication Rotary 18.5kw Oil Free Screw Air Compressor air compressor portable

Product Description

Water Lubrication Rotary 18.5kw Oil Free Screw Air Compressor 

Water lubricated oil free compressor-technical parameters:

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 8.5 0.3~0.78 5.5 57 3/4″ 1.5 10 800x800x1100 460 3/4″
10.5 0.2~0.65
WZS-08PMA 8.5 0.35~1.17 7.5 57 3/4″ 2 10 800x800x1100 510 3/4″
10.5 0.3~1.05
12.5 0.24~0.81
WZS-11PMA 8.5 0.54~1.72 11 60 1″ 2.5 26 1200x800x1300 620 3/4″
10.5 0.45~1.42
12.5 0.35~1.10
WZS-15PMA 8.5 0.75~2.43 15 60 1″ 3.5 26 1200x800x1300 670 1″
10.5 0.65~2.17
12.5 0.6~1.85
WZS-18PMA 8.5 0.9~3.13 18.5 63 1″ 4 30 1400x1000x1520 730 1″
10.5 0.9~2.82
12.5 0.6~2.05
WZS-22PMA 8.5 1.1~3.62 22 63 1 1/2″ 5 30 1400x1000x1520 780 1″
10.5 0.97~3.21
12.5 0.85~2.78
WZS-30PMA 8.5 1.55~5.12 30 66 1 1/2″ 7 40 1500x1150x1500 1150 1 1/2″
10.5 1.255~4.43
12.5 1.1~3.63
WZS-37PMA 8.5 1.91~6.30 37 66 1 1/2″ 9 40 1500x1150x1500 1200 1 1/2″
10.5 1.60~5.33
12.5 1.42~4.77
WZS-45PMA 8.5 2.50~8.30 45 68 1 1/2″ 10 90 1800x1300x1750 1490 2″
10.5 1.91~6.30
12.5 1.70~5.56
WZS-55PMA 8.5 3.0~9.76 55 69 1 1/2″ 12 100 1800x1300x1750 1570 2″
10.5 2.60~8.55
12.5 2.30~7.67
WZS-75PMA 8.5 3.95~13.00 75 72 1 1/2″ 18 100 1800x1300x1750 1750 2″
10.5 3.40~11.50
12.5 3.0~9.70
WZS-90PMA 8.5 5.0~16.60 90 73 1 1/2″ 20 120 2200x1550x1800 2450 2 1/2″
10.5 4.30~14.66
12.5 3.72~12.60
WZS-110PMA 8.5 6.0~19.97 110 77 1 1/2″ 24 120 2200x1550x1800 2580 2 1/2″
10.5 5.0~16.66
12.5 4.65~15.56
WZS-132PMA 8.5 6.75~22.52 132 77 2″ 30 120 2200x1550x1800 2700 2 1/2″
10.5 6.0~19.97
12.5 5.07~16.90
WZS-160PMA 8.5 8.5~28.11 160 79 3″ 35 160 3000x1800x2100 3900 3″
10.5 706~25.45
12.5 6.7~22.52
WZS-185PMA 8.5 10~33.97 185 79 3″ 38 160 3000x1800x2100 4050 3″
10.5 8.72~29.00
12.5 7075~25.210
WZS-200PMA 8.5 11.2~36.75 200 80 4″ 42 200 3100x1850x2100 4200 4″
10.5 9.68~32.78
12.5 9.2~29.24
WZS-220PMA 8.5 12.2~39.67 220 80 4″ 47 200 3100x1850x2100 4400 4″
10.5 11.2~36.75
12.5 9.0~29.63
WZS-250PMA 8.5 13.5~44.78 250 80 4″ 53 200 3100x1850x2100 4800 4″
10.5 12.3~39.67
12.5 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).

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: Pasha Teng
Mob: -173-1757-2798  /* 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: AC Power
Cylinder Position: Vertical
Structure Type: Closed Type
Installation Type: Stationary Type


air compressor

How does variable speed drive technology improve air compressor efficiency?

Variable Speed Drive (VSD) technology improves air compressor efficiency by allowing the compressor to adjust its motor speed to match the compressed air demand. This technology offers several benefits that contribute to energy savings and enhanced overall system efficiency. Here's how VSD technology improves air compressor efficiency:

1. Matching Air Demand:

Air compressors equipped with VSD technology can vary the motor speed to precisely match the required compressed air output. Traditional fixed-speed compressors operate at a constant speed regardless of the actual demand, leading to energy wastage during periods of lower air demand. VSD compressors, on the other hand, ramp up or down the motor speed to deliver the necessary amount of compressed air, ensuring optimal energy utilization.

2. Reduced Unloaded Running Time:

Fixed-speed compressors often run unloaded during periods of low demand, where they continue to consume energy without producing compressed air. VSD technology eliminates or significantly reduces this unloaded running time by adjusting the motor speed to closely follow the air demand. As a result, VSD compressors minimize energy wastage during idle periods, leading to improved efficiency.

3. Soft Starting:

Traditional fixed-speed compressors experience high inrush currents during startup, which can strain the electrical system and cause voltage dips. VSD compressors utilize soft starting capabilities, gradually ramping up the motor speed instead of instantly reaching full speed. This soft starting feature reduces mechanical and electrical stress, ensuring a smooth and controlled startup, and minimizing energy spikes.

4. Energy Savings at Partial Load:

In many applications, compressed air demand varies throughout the day or during different production cycles. VSD compressors excel in such scenarios by operating at lower speeds during periods of lower demand. Since power consumption is proportional to motor speed, running the compressor at reduced speeds significantly reduces energy consumption compared to fixed-speed compressors that operate at a constant speed regardless of the demand.

5. Elimination of On/Off Cycling:

Fixed-speed compressors often use on/off cycling to adjust the compressed air output. This cycling can result in frequent starts and stops, which consume more energy and cause mechanical wear. VSD compressors eliminate the need for on/off cycling by continuously adjusting the motor speed to meet the demand. By operating at a consistent speed within the required range, VSD compressors minimize energy losses associated with frequent cycling.

6. Enhanced System Control:

VSD compressors offer advanced control capabilities, allowing for precise monitoring and adjustment of the compressed air system. These systems can integrate with sensors and control algorithms to maintain optimal system pressure, minimize pressure fluctuations, and prevent excessive energy consumption. The ability to fine-tune the compressor's output based on real-time demand contributes to improved overall system efficiency.

By utilizing variable speed drive technology, air compressors can achieve significant energy savings, reduce operational costs, and enhance their environmental sustainability by minimizing energy wastage and optimizing efficiency.

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 Hot selling Water Lubrication Rotary 18.5kw Oil Free Screw Air Compressor   air compressor portableChina Hot selling Water Lubrication Rotary 18.5kw Oil Free Screw Air Compressor   air compressor portable
editor by CX 2023-12-16