A rotary-screw compressor is a type of gas compressor, such as for example an surroundings compressor, that runs on the rotary-type positive-displacement system. They are commonly used to replace piston compressors where large volumes of high-pressure atmosphere are required, either for large commercial applications or even to operate high-power atmosphere tools such as jackhammers and impact wrenches. For smaller rotor sizes the inherent leakage in the 
rotors turns into much more significant, scroll air compressor becoming less practical than piston types for smaller volume air compressors.
The gas compression procedure for a rotary screw is a continuing sweeping motion, so there is quite little pulsation or surging of flow, as occurs with piston compressors. This also allows screw compressors to be considerably 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 on it. Unit was lately serviced with brand-new separator filters, air conditioning filter, essential oil filter, and new oil. Unit has been tested and functions great. Free freight shipping. Feel free to contact me with any queries you may have.
Item specifics
Rated Voltage: 230 V
Brand:Ever-power
Rated Horsepower: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