This HAC15-VS, variable-speed air compressor has a 15HP motor, with a 53 gal. capacity, and a 145psi (10bar) maximum working pressure. It is designed to provide dry, filtered, compressed air to CNC machining centers and similar machinery, in order to power moving parts and generate rotational or linear movement where needed. The variable-frequency motor can adjust its motor speed to supply a non-constant rate of compressed air, better matching the real-time air demand of any given system, and lowering overall energy consumption costs. HAC15-VS