Two-stage oil-free screw compressor
Pressure range : 7.5 bar <P< 10 bar
FAD 6-83 m³/min
Divided into two compression stages, high compression ratio output, low pressure stage can press 2-3.5bar, high pressure stage to reach the user's final pressure.
Efficient cooling system and reasonable cooling layout make the two-stage compression close to isothermal compression to improve the compression efficiency.
The air end, drive, cooling etc., modular design, reduce the number of spare parts, maintenance is more convenient.
High efficiency oil free compressor air end
Advanced processing technology ensures high efficiency and stability of the air end
Forged steel rotor has high strength and less expansion
It is suitable for oil - and water-cooled jacket cooling
It is allowed to be used at 45℃
Optimized bearing structure design
One pair of radial bearings and one pair of axial bearings are used for both male and female rotors
High quality bearings meet the requirements of 20,000-30,000 RPM
Robust bearing positioning ensures optimum rotor clearance
SKF bearings ensure the high efficiency and long service life of the air end
Top quality seal ensures no oil
Air seal adopts stainless steel floating ring, small clearance, no friction, low gas consumption
The inlet is designed to resist negative pressure, which further reduces the loss of compressed air
The oil seal adopts nickel-plated alloy reverse floating ring design, no friction, small clearance, to ensure no leakage
Food grade quality requirements
All stainless steel piping
Food grade high temperature and corrosion resistant coatings meet the requirements of various industries
The rotor and inner wall of two-stage compression are coated
Strict factory test
1.The above parameters are based on the inlet conditions at pressure 1.0Bar(A), temperature 20℃ and relative humidity 0%, tested according to ISO 1217 4th Edition Annex E standard.
2.The data in the table is applicable to 50Hz power supply. Please contact us for the parameters of 60Hz power supply.
3.PurAir products continue to improve, please request the latest data sheet.