Company Profile

Sumitomo Heavy Industries, Ltd.   PTC Group

The Sumitomo Heavy Industries Group is an all-around machinery manufacturer engaged in the production of general industrial machinery, precision machinery, construction machinery, ships, environmental plant facilities, and other products. Our Power Transmission & Controls Group (PTC) is a business unit which develops and produces variable speed gears and gear reducers.

Company Name

Sumitomo Heavy Industries, Ltd.

Head Office 〒141-6025
ThinkPark Tower, 1-1 Osaki 2-chome, Shinagawa-ku, Tokyo 141-6025, Japan
President Shunsuke Betsukawa

November 20, 1888

Incorporated November 1, 1934
Capital 30,872 million yen (as of March 31, 2018)
Number of Employees Consolidated: 21,017 (as of March 31, 2018)
Annual Revenue Consolidated: JPY 791,025 million (for the 2017 Fiscal Year)

Sumitomo Heavy Industries Gearbox Co., Ltd.

A production and sales company for large-size gear reducers, gear reducers for special applications, couplings, and other products.

Company Name

Sumitomo Heavy Industries Gearbox Co., Ltd.


Head office
4-16-1, Wakihama, Kaizuka, Osaka 597-8555, Japan


  • Kaizuka Factory:16-1, Wakihama 4-chome, Kaizuka-shi, Osaka 597-8555, Japan
  • Okayama Factory:8230, Tamashima-Otsushima, Kurashiki, Okayama 713-6353, Japan

Branch Offices

  • Eastern region sales office:ThinkPark Tower, 1-1 Osaki 2-chome, Shinagawa-ku, Tokyo 141-6025, Japan
  • Western region sales office:Osaka Mitsui Bussan Building, 3-33 Nakanoshima 2-chome, Kita-ku, Osaka-shi, Osaka 530-0005, Japan

Sales office

  • Tokyo
  • Osaka
  • Hiroshima
  • Shikoku(Ehime)

Telephone Number

President Tatsuro Araki


September 25, 1916
Products Paramax Drive, Large Industrial Gearboxes, Compower Planetary Gear Drive, Hedcon Worm Gear Reducer, SKK GearMoter, Coupling and so on


840.67 million yen

440 (as of April 30, 2017)