About Us
Marusaku Seiko is a precision gear manufacturer with more than 30 years of expertise in the gear-making industry. We design and produce a full range of high-precision gear products for demanding industrial applications worldwide.
Our flagship line — crowned (drum) gear couplings — serves the rail-transit sector and has been exported to Japan for many years. Beyond couplings, we have independently developed a proprietary hydrostatic direct-drive technology platform, successfully applied to hydrostatic spindles, rotary tables and bearings, with long-term positioning accuracy maintained in the range of 0.0005 mm to 0.0015 mm.
Our machining portfolio also covers gear hobbing machines, gear shaping machines and gear skiving machines, enabling complete in-house capability from component to finished transmission systems. Backed by rigorous quality control and deep process know-how, Marusaku Seiko delivers reliable, high-precision solutions to global B2B customers across the machine-tool, automation and rail industries.