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30~37kW 40~50HP Oil-free Water Lubricated Rotary Screw Compressor

1. Air delivery: 3.63~6.30m3/min 128~223cfm
2. Pressure: 0.7~1.25MPa/7~12.5bar/101.5~182 psi
3. Power: 30~37 kW/40~50 hp
Availability:
Quantity:
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This energy-saving air compressor uses water instead of oil to lubricate the screw, is driven by a permanent magnet motor and has a variable frequency adjustment function, and outputs 100% oil-free compressed air.


Features

  • Oil-free and environmentally friendly

    Water lubrication and pure compressed air (Class 0) eliminate the risk of oil contamination.

  • Energy-efficient

    Permanent magnet motor + variable frequency technology saves 30%-50% more energy than standard frequency motors.

  • Low maintenance

       The water circulation system reduces mechanical wear and extends life.

  • Low noise

    The water medium reduces noise for quieter operation.


Application Scenarios

  1. High-purity requirements: Food, pharmaceutical, electronics, photovoltaic, and other manufacturing industries.

  2. Energy-saving scenarios: Long-term continuous operation requiring variable frequency drive control.

  3. Harsh environments: High temperatures, flammable and explosive environments (water lubrication eliminates the risk of explosion).


Product Parameters

Oil-free Water Lubricated Screw Air Compressor RW Series
ModelAir Delivery (m3/min)Power (kW)Lubricating water amount (Liters)Cooling water amount T/HourCooling water inlet/outlet diameterNoise dB(A)Outlet diameterDimension (mm)Weight (Kg)
8 bar10 Bar12.5 barL*W*H
RW-30A/W5.124.433.6330407.01 1/2"671 1/4"1550*1150*1550(A) 1500*1150*1300(W)1100
RW-37A/W6.305.334.7737409.01 1/2"671 1/4"1550*1150*1550(A) 1500*1150*1300(W)1150



FAQ

1. Water quality requirements?

Softened or deionized water is required to prevent scaling and corrosion.


2. Is maintenance cost high?

Lower than oil-fired compressors (eliminating oil changes and oil filtration costs), but regular water system cleaning is required.


3. Can it replace oil-fired air compressors?

It is suitable for clean environments; special models are required for high-temperature and high-pressure conditions.


4. Energy efficiency?

The variable frequency drive + permanent magnet motor offers significant energy savings at partial loads.


5. Disadvantages?

The initial investment is high, and antifreeze measures are required in low-temperature environments.

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