A rotary-screw compressor is a type of gas compressor, such as for example an air compressor, that runs on the rotary-type positive-displacement mechanism. They are commonly used to screw air compressor displace piston compressors where huge volumes of high-pressure air are required, either for large industrial applications or even to operate high-power surroundings tools such as for example jackhammers and effect wrenches. For smaller rotor sizes the inherent leakage in the rotors becomes much more significant, becoming less useful than piston types for smaller sized 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 considerably quieter and produce significantly less vibration than piston compressors.
Ever-power Rotary Screw Air Compressor. 230 volt with built-in air dryer and 80 gallon tank.Unit offers 13857hours onto it. Unit was recently serviced with new separator filters, air filter, oil filter, and new essential oil. Unit has been examined and functions great. Free freight delivery. Feel free to contact me with any questions you may have.
Item specifics
Rated Voltage: 230 V
Brand:Ever-power
Rated Hp:15 hp (11 kW)
Power Supply:Electric Airflow Volume (CFM): 60
Compressor Type:Rotary Screw
Air Tank Capacity: 80 gal
Motor Horsepower:10.5 to 30
Current Phase: 3 Phase