... 3.High Efficiency 4.Build- in frequency conversion 5.Oil free Air Compressor (5-540HP) 1.The range of our screw ... : 4-400KW (5-540HP),Pressure: 0.7MPa to 1.3MPa;Air-Flow: 8.8CFM to 2650CFM(0.25-75M3/min),And also supply ... Speed Drive) air compressor, special air compressor and air compressor system. 2.Air Compressor Station:Air compressor,Aor receiver,DA, DH air dryer,High efficiency air filter. 3 ...