Yamashita Seisakusho Co., Ltd.

Established in 1974 and based in Saitama, Yamashita Seisakusho specializes in precision machining for complex and irregularly shaped components. The company excels in 2.5D and 3D machining using CNC milling centers and NC lathes, often developing proprietary jigs to process difficult castings and thin workpieces. Through a collaborative network with design firms and software companies, they provide integrated manufacturing solutions from initial design and material procurement to final assembly and surface treatment. Their production system is optimized for high-mix, small-lot manufacturing with a strong focus on achieving rapid delivery timelines.