Rocky 10-350hp Oil-Free Water Injected Screw Compressors

Oil-free air compressors help manufacturers create products with high air quality throughout the manufacturing process. This equipment typically has no mechanical contact inside the compression chambe

  • Working Pressure:8~12.5[ bar ]116~182[ psig ]
  • Free Air Delivery:28.6~1535[ cfm ]0.81~43.5[ m3/min ]
  • Working Power:7.5~250[ kw ]10~350[ hp ]

Product Details

What is an Oil-Free Air Compressor?

Oil-free air compressors help manufacturers create products with high air quality throughout the manufacturing process. This equipment typically has no mechanical contact inside the compression chamber, or it uses an alternate material like water or Teflon coating to protect the internal mechanisms without depending on oil lubrication. Oil-free air compressors can provide air purity, environmental benefits and significant cost savings for manufacturers.

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Product feature

Optimal Water Lubricated Screw Unit

The oil-free water lubricated screw unit adopts PEEK ultra-high-strength ultra-wear-resistant molecular material and aerospace-grade all-stainless steel rotor. The system piping and housing are also made of stainless steel.

Class 0 Oil-free

Water is used for lubrication, cooling, sealing and noise reduction. 100% oil-free and pollution-free, the used water is environmentally friendly and can be drained directly.

Reliable Solenoid Valve

Danfoss and ODE solenoid valves are selected, high sensitivity & longer lifetime.

Less Consumables and Easy Operation

Air filter and water filter only. Lubricating water is automatically replenished and drained regularly.

Technical 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-08A/W1.171.050.817.5102.03/4"583/4"800*800*1200470
RW-11A/W1.651.421.1011262.51"603/4"1150*755*1340580
RW-15A/W2.432.171.8015263.51"633/4"1150*755*1340650
RW-18A/W3.132.822.0518.5304.01"651"1400*900*1450705
RW-22A/W3.523.212.7822305.01"651"1400*900*1450745
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
RW-45A/W7.406.305.56459010.01 1/2"682"1980*1300*1760(A) 1800*1300*1670(W)1390
RW-55A/W9.608.557.675512012.01 1/2"702"1980*1300*1760(A) 1800*1300*1670(W)1470
RW-75A/W13.0011.509.707512018.01 1/2"732"2100*1600*1900(A) 2200*1500*1800(W)2250(A) 1630(W)
RW-90A/W14.8013.9012.609018020.01 1/2"732 1/2"2400*1600*2000(A) 2200*1500*1800(W)2650(A) 2350(W)
RW-110A/W19.8516.6615.5611018024.02"782 1/2"3000*1700*2250(A) 2200*1500*1800(W)3150(A) 2460(W)
RW-132A/W23.1019.9716.9013224030.02"782 1/2"3000*1700*2250(A) 2200*1500*1800(W)3500(A) 2500(W)
RW-160W28.1125.4522.5216024035.03H80DN802700*1800*20503700
RW-185W33.9729.0025.2118530038.03"80DN802700*1800*20503750
RW-200W36.7532.7829.2420030042.04"80DN1002700*1800*20503900
RW-220W39.6736.7529.6322036047.04"80DN1002700*1800*20504200
RW-250W43.5039.3034.0025036058.04"80DN1002700*1800*20504600