Koyo Machinery U.S.A., Inc. is proud of its diverse line of grinding machines providing precision turnkey, centerless, surface, and special-purpose grinding solutions to manufacturers of automotive and powertrain components, bearings, and special pumps, as well as hand tools, ceramics, medical, and aerospace equipment. Through mechanical and electrical engineering expertise, Koyo Machinery continues to re-examine the essential factors in grinding technology in order to improve performance and meet the demands of our ever-changing market. These factors include: precision, efficiency, rigidity, stability, automation, and more. Koyo Machinery U.S.A., Inc. is a Michigan corporation that was incorporated on December 4, 1991. It is a wholly-owned subsidiary of Koyo Machine Industries Co., Ltd.