Saylor Beall industrial two stage industrial air compressors are built with an electric motor. All of our recipricating air compressors are proudly USA made and rank among the best air compressors in the industry. PUMP FEATURES – CYCLINDER HEAD, Finned Cast Iron, Valves Servicable from Top – CYLINDERS; Finned Cast Iron – Precision Honed – INTERCOOLERS; Sturdy Finned Cast Iron – CRANKSHAFT; Cast Meehantite, Ground; Polished Journals – CONNECTING RODS; With Replaceable Precision Type Automotive Inserts, Replaceable Needle Bearings (Wrist Pin) – PISTONS; L.P. Auminu, H.P., Cast Iron – PISTON RINGS; Three Compression, One Oil – CENTRIFUGAL UNLOADER; No Load Start