Yamada Seisakusyo Co., Ltd. is high precision grinding company in Japan.

      Japanese true circle
to the world.

We pride ourselves on precision grinding technology. Our extremely high roundness as tight as 1micron requires sophisticated craftmanship.

COMPANY

The 2 circles of our logo have the meaning of “Technology / Production System” and “Individual Satisfaction”. And the overlapped part of these 2 elements means “Our Value”. Our leadership not only to our technologies, but also to production system gets social surroundings involved, and makes positive effects. One of our missions are to create the virtuous circle continuously.

MESSAGE by CEO

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ABOUT

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PRODUCTS

Our products are assembled to complex mechanical products composed by tens of thousands of parts. Even if one slight distortion might cause overloading to all related items and possibly occur huge errors on total module. Regardless of a single item or mass production, we are continuously pursuing the highest quality for all of our products.

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FACILITIES

Our high precision products have satisfied customer requirements since 1970.

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