Oil Free Screw Air Compressors produce oil-free air that is free of any hydrocarbon. Screw Air Compressors can function with 30HP/22kW variable speed drive to ensure optimum performance for longer period of time. Screw Air Compressors work with low speed range that increases bearing life for reduced down time. Oil Free Screw Air Compressors require 415V, 50Hz power to operate efficiently.