Yamanaka Eng Co., Ltd.

Japan

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Yamanaka Eng Co., Ltd. (formerly known as Yamanaka Gokin) is a pioneer in cold forging tooling and plastic metal working technology in Japan, established in February 1961. Based in Higashiosaka, Osaka, the company operates an integrated, fully in-house engineering and production infrastructure serving major automotive OEMs and component fabricators.

With international subsidiaries and manufacturing bases in China, Thailand, and Singapore, Yamanaka Eng provides full-cycle tooling solutions from concept engineering and advanced CAE metal forming simulation to ultra-precision CNC tooling machining, trial press evaluation, and smart sensor-integrated die monitoring systems.

Offer

Yamanaka Eng supplies advanced tooling setups and engineering solutions for high-pressure plastic forming and forging applications:

Precision Cold Forging Tooling: Enclosed cold forging dies, multi-stage heading punches, and precision inserts designed to produce high-tolerance, near-net-shape automotive fasteners, shafts, and gear parts.
Warm, Hot & Combined Forging Tooling: Specialized dies for warm/hot/cold hybrid processes, flow forming, and non-ferrous metal forging (aluminum, copper).
Die Sets & Workholding: Standard and customized die sets, including space-saving spring-loaded closing die sets, hydraulic die sets, and hybrid systems.
Smart Die Sets & Process Monitoring: Tooling equipped with embedded piezoelectric load sensors (such as sensor bolts) for real-time monitoring of forging load variations and early defect detection.
Forming Simulation & Engineering Services: CAE development consulting and deployment using the FEM-based DEFORM simulation platform to evaluate tool stress and cavity material flow prior to production.
Trial Press Facilities: Jointly developed multi-axis double-acting presses to validate and debug prototype dies under realistic production press conditions.

Yamanaka Eng Co., Ltd.

Offer

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