Headquarter & Kaizuka Factory

Sumitomo Heavy Industries Gearbox Co., Ltd., with its headquarters and factory in Kaizuka, Osaka, manufactures and sells special reducers and couplings.

As Japan's leading manufacturer specializing in gears, along with its 100-year history and the accumulation of global standard technologies, we are committed to meet the continuing requirements of gear transmissions for “compactness, weight-reduction, high efficiency and high precision.”

We continue to research and develop new models and ways to expand the applications of gears and reducers.

Manufactured Products

• Special Reducers/Increasers
• SKK Gearmotor
• Couplings
• Gears

and so on