A rotary-screw compressor is a kind of gas compressor, such as for example an surroundings compressor, that uses a rotary-type positive-displacement system. They are generally used to displace piston compressors where large volumes of high-pressure atmosphere are required, either for large industrial applications or even to operate high-power atmosphere tools such as jackhammers and effect wrenches. For smaller rotor sizes the inherent leakage in the rotors turns into much more significant, becoming less practical than piston types for smaller volume air compressors.
The gas compression procedure for a 
rotary screw is a continuous sweeping motion, so there is very little pulsation or surging of flow, as occurs with piston compressors. This also allows screw compressors to become significantly quieter and produce significantly less vibration than piston compressors.
Ever-power Rotary Screw Air flow Compressor. 230 volt with built-in air dryer and 80 gallon tank.Unit offers 13857hours onto it. Unit was recently serviced with brand-new separator filters, air conditioning filter, oil filter, and new essential oil. Unit has been scroll air compressor 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 Horsepower:10.5 to 30
Current Phase: 3 Phase