A rotary-screw compressor is a type of gas compressor, such as for example an air compressor, that uses a rotary-type positive-displacement mechanism. They are generally used to replace piston compressors where huge volumes of high-pressure atmosphere are needed, either for large commercial applications or to operate high-power surroundings tools such as jackhammers and effect wrenches. For smaller rotor sizes the inherent leakage in the rotors becomes much more significant, becoming less practical than piston types for smaller volume air compressors.
The gas compression procedure for a rotary screw is a screw air compressor continuous sweeping movement, so there is quite small pulsation or surging of flow, as occurs with piston compressors. This also allows screw compressors to end up being significantly quieter and produce much less vibration than piston compressors.
Ever-power Rotary Screw Surroundings Compressor. 230 volt with built-in air dryer and 80 
gallon tank.Unit offers 13857hours on it. Unit was recently serviced with fresh separator filters, air conditioning filter, oil filter, and new essential oil. Unit has been examined and functions great. Free freight delivery. Feel free to contact me with any queries you may have.
Item specifics
Rated Voltage: 230 V
Brand:Ever-power
Rated Hp:15 hp (11 kW)
Power Supply:Electric Airflow Quantity (CFM): 60
Compressor Type:Rotary Screw
Air Tank Capacity: 80 gal
Motor Hp:10.5 to 30
Current Phase: 3 Phase