Hydraulic pumps, cylinders, gearboxes, and other devices used to power heavy equipment such as construction, industrial, and agricultural machinery

corporate information

Koretsune Seiko Ltd. corporate fact sheet

Koretsune Seiko Ltd. designs and manufactures hydraulic devices and gearboxes for construction equipment and other heavy machinery.


Koretsune Seiko is highly regarded, both in Japan and around the world, for extensive application of state-of-the-art, computer-controlled devices as well as for advanced technological expertise and rigorous quality control methods.

Construction equipment plays an important role in both emergency response activities and the reconstruction of area affected by natural disasters.

Name Koretsune Seiko Limited
Address Headquarters located at 211 Nishiyokota-cho, Kasai, Hyogo
Kasai Minami factory located at 2001-44 Abiki-cho, Kasai, Hyogo (Kasai Minami Industrial Park)
Established April, 1969
Paid-in capital 50 million yen
No. of employees 230 employees
Site area 22,638 m2
Floor area 11,983 m2
Affiliated companies

Koretsune Hydraulic Machinery (Hanzhou) Co., Ltd.

Business description Hydraulic equipment and gearboxes
Major clientele Caterpillar Japan, Limited
Mitsubishi Heavy Industries, Limited
Mitsubishi Agricultural Machinery Company, Limited
Kawasaki Heavy Industries, Limited
KCM Corporation
Kobelco Construction Machinery Company, Limited
Kobelco Cranes Company, Limited
Kubota Corporation
Hunan Sunward Intelligent Machinery
IHI Construction Machinery Limited
Caterpillar, Incorporated
Banking services Sumitomo Mitsui Banking Corporation

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Group Companies

Name KS Work, Incorporated
address 335 Nishiyokota-cho, Kasai, Hyogo 675-2335

A Koretsune Seiko Group company, established on September 10, 2007. Handles contract work as well as startup of new equipment as a specialist in manufacturing technology and expertise.KS Work, Incorporated

top Page corporate fact sheet major products design, quality control, and production management state-of-the-art equipment fabrication and Assembly employment info