DEWALT's 60 Gal. Air Compressor features a cast iron, twin-cylinder, oil-lubricated pump. This includes a 1-piece cast iron crankcase, thermally stable cast iron cylinder body, aluminum head and valve plate, automotive style ball bearings, durable Swedish stainless steel reed valves, oil level sight glass, easily accessible oil fill and a 12 in. cast iron balanced flywheel. The unit operates with a heavy-duty, 240-Volt induction motor for maximum performance and efficiency, with 155 PSI max pressure for optimum tool performance.