air cooled rotary screw compressor oil free This is a twin shaft screw compressor This is a twin shaft 55 psia @ 60 degrees F outlet pressure The compressor is a type WQ 40-12/55, 1.2 kg/cu M, 20 degrees C, 75 cuM/minute General Electric Extra Severe Duty AC motor The intake flange is 8" and discharge flange is 6" and both are mounted at the top of the machine, and the instrumentation for monitoring the unit are mounted on the side as a panel. This unit is mounted in complete sound proof enclosure.