Hight Pressure Oil-free Screw Air Compressor

Working Pressure :

20 -40 [ bar ] 290 – 580 [ psig ]

Free Air Delivery :

64 – 1412 [ cfm ] 1.8 – 40 [ m3/min ]

Working Power :

55 – 400 [ kw ] 70 – 550 [ hp ]

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Working Principle and Characteristics Of Single Screw Compressor :

– Simple construction Low vibration
Single screw air compressors use one screw and two star wheels, one placed on either side of the screw. Radial and axial loads cancel each other out, so that theoretically the load is zero. This is the most advanced designing structure of single screw air compressor.

– High efficiency
First, single screw air compressors theoretically do not have any volume clearance. Second, the water used as a lubricating medium also closes the gaps in the compression chamber, and allows high efficiency operation at low speeds. Third, the use of water as a cooling method keeps the compressor’s isothermal compression ideal.

– Energy saving
When the actual air usage is lower than the air delivery value, the compressor consumes extra power without any air output during unloading. However, with inverters, compressors changes the motor rotation speed depending on the detected air pressure, thus saving energy.

– Less noise
First, the motor and screw are connected directly without any gears rotating, causing gear noise. Meanwhile, sound-absorbing materials are also used in the equipment shell to reduce noise.

– Stable air delivery
Depending on the pressure sensor valve, the digital controller changes the rotation speed of the motor through the inverter. That’s how it controls the outgoing air pressure to create stable air output.

– Can be monitored
Intelligent monitoring is used to prevent accidents. An emergency alarm appears on the computer and a short message will also be sent to the manager. All of this is important for prevention of production accidents.