Mitsui Seiki
Mitsui Seiki is a precision machine tool manufacturer serving demanding global markets.
Last updated September 1, 2026
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Overview
Mitsui Seiki engineers precision machine tools for demanding applications in aerospace, power systems, mold & die, ultra precision parts, and more. The company operates a main factory in Kawajima, Japan, and has a North American subsidiary, Mitsui Seiki (U.S.A.), Inc., established in 1982.
History
Prior to 1982, Mitsui Seiki machine tools were sold in North America by a machine tool importer. In 1982, the parent company, Mitsui Seiki Kogyo Co., Ltd., established a wholly-owned subsidiary, Mitsui Seiki (U.S.A.), Inc., with headquarters in Franklin Lakes, New Jersey. The main factory in Kawajima, Japan, was built in 2001.
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