大月精工 Company Profile

We deliver precision machinery parts, precision small gears, and drive modules with advanced cutting and molding technologies and optimal design.

Otsuki Seiko Co., Ltd. delivers precision machine parts, precision small gears, and drive modules that support various industries through advanced cutting and molding technologies and optimal design. In "Precision Cutting," we perform complex processing of various materials (φ0.05 to φ45mm) using CNC precision automatic lathes, as well as gear cutting, rolling, and grinding processes with CNC hob machines. In "Resin Molding," we use electric injection molding machines to mold precision gears (m0.1 to m1.0) and small precision parts using optimal materials. In "Drive Equipment," we manufacture various small drive modules, precision small reducers, and geared motors using high-precision in-house parts and advanced design.