When sourcing precision tooling for automotive production, the difference between a reliable partner and a mediocre supplier often comes down to experience, scale, and quality systems. For over 20 years, LINHAI DIAN MOULD CO., LTD (DIAN STAMPING) has been manufacturing high-quality automotive stamping dies from its facility in Zhejiang, China — serving a client roster that includes some of the world's largest automotive OEMs.

A Legacy Built on Precision and Scale

Established in 2003, DIAN STAMPING has grown from a modest die workshop into a comprehensive manufacturing operation. The company's main facility spans approximately 50,000 m², with a dedicated die workshop of 4,000 m² and a planned 35,000 m² expansion featuring new press lines and coating capabilities. With around 110 employees — including 35 die designers and technicians — the company produces approximately 2,000 sets of medium and small stamping dies annually, with an annual die turnover of around RMB 50 million.

Comprehensive Stamping Solutions Under One Roof

Unlike many suppliers that specialize in just one aspect of the metal forming process, DIAN STAMPING offers a true end-to-end service. The company's capabilities span tool and die manufacturing, stamping production, welding, assembly, checking fixtures, and welding jigs — making it a genuine one-stop partner for automotive OEMs and Tier suppliers.

The company specializes in progressive die stamping, transfer dies, and tandem (multi-station) dies for large and medium-sized complex parts. Material capabilities include multiphase steel, aluminum alloys, custom rolled and welded plate, and stainless steel — covering the full spectrum of modern automotive material requirements. Application areas include body-in-white, door systems, seating systems, instrument panels, fuel-tank systems, exhaust systems, clutch systems, and chassis systems.

Quality Systems That Meet Global Standards

Quality assurance is a cornerstone of DIAN STAMPING's operations. The company operates under an ISO 9001-certified quality management system and follows IATF 16949-oriented automotive manufacturing practices. This commitment to quality is reflected in the company's inspection capabilities: checking fixtures enable rapid, repeatable dimensional verification of stamped components, while in-line quality controls ensure consistency throughout production runs.

For customers requiring high-precision sheet metal stamping dies, DIAN STAMPING offers customization from 2D drawings, 3D data, or physical samples. Prototype services are also available, allowing customers to validate designs before committing to full production tooling. Typical delivery timelines are 30–40 days for steel stamping dies and approximately 70 days for casting stamping dies, subject to project complexity.

Proven OEM Partnerships

One of the strongest indicators of a manufacturer's capability is the quality of its customer base. DIAN STAMPING has supplied tooling and stamped components to an impressive roster of global automotive brands, including KIA, BYD, Toyota, Honda, Suzuki, and Geely. With exports reaching more than 10 countries, the company has demonstrated its ability to meet the rigorous quality, delivery, and cost requirements of international OEMs.

As a factory-direct manufacturer — not a trading company — DIAN STAMPING offers competitive pricing without compromising on quality. This direct model means customers work with the actual production team, enabling faster communication, greater transparency, and more responsive problem-solving throughout the project lifecycle.

Why Automotive Buyers Choose DIAN STAMPING

• Factory-direct pricing — No middlemen, no markups, just competitive manufacturing costs from a 50,000 m² production facility.
• End-to-end capabilities — From die design and fabrication to stamping, welding, inspection, and assembly, all under one roof.
• Proven quality systems — ISO 9001 certified with IATF 16949-oriented practices, supported by precision checking fixtures and CMM inspection.
• Experienced engineering team — 35 die designers and technicians with deep expertise in progressive, transfer, and tandem die technologies.
• Global delivery track record — Serving OEMs in 10+ countries across Asia, Europe, and the Americas.
• Material versatility — Processing multiphase steel, aluminum, stainless steel, and custom rolled plate for diverse automotive applications.