In automotive manufacturing, the difference between a vehicle that performs flawlessly and one that doesn't often comes down to the quality of its stamped metal components. Choosing the right partner for your tooling and production is not just a procurement decision — it is a strategic one that affects cost, quality, and delivery timelines across your entire supply chain.

A Legacy of Precision Engineering

Founded in 2003 in Huangyan, Taizhou, Zhejiang Province, LINHAI DIAN MOULD CO., LTD (Dian Stamping) has spent more than two decades perfecting the art of metal stamping. Today, the company stands as one of China's most experienced stamping die manufacturers, serving global automotive OEMs including KIA, BYD, Toyota, Honda, Suzuki, and Geely, and exporting to more than 10 countries worldwide.

What sets Dian Stamping apart is not just its longevity, but its consistent investment in scale and capability. The company operates a modern facility covering approximately 50,000 m², with a dedicated die workshop of 4,000 m² and a planned 35,000 m² expansion featuring new press and coating lines. This infrastructure supports an annual output of roughly 2,000 sets of medium and small stamping dies, with a reported annual die turnover of approximately RMB 50 million.

Comprehensive Capabilities Under One Roof

Unlike many competitors who specialize in only one segment of the stamping process, Dian Stamping offers a truly integrated service portfolio. The company designs and builds automotive stamping dies including progressive dies, transfer dies, and tandem/multi-station dies, and follows through to produce the stamped parts, inspection fixtures, and welding jigs needed for full production readiness.

This end-to-end approach means that when you work with Dian Stamping, you are not managing multiple vendors across different stages of production. The same team that designs your die also manufactures your parts, builds your checking fixture, and fabricates your welding jig — ensuring dimensional consistency, shorter lead times, and single-point accountability.

Products and Applications

Dian Stamping's product offering spans four core categories, each engineered to meet the rigorous demands of automotive and industrial manufacturing:

• Stamping Dies — Precision progressive, transfer, and tandem tooling for large and medium-sized complex parts, covering body-in-white, door systems, seating systems, instrument panels, and chassis components.
• Sheet Metal Parts — High-volume stamped parts for automotive body structures, fuel-tank systems, exhaust systems, and clutch assemblies, as well as household-appliance components.
• Checking Fixtures — High-precision, GD&T-oriented inspection fixtures that verify dimensional accuracy of stamped components and welded assemblies, eliminating measurement variability between inspectors.
• Welding Jigs — Custom fixtures designed for accurate, repeatable welding and assembly operations, ensuring consistent positioning and joint quality in production.

The company processes a wide range of materials including multiphase steel, aluminum, custom rolled and welded plate, and stainless steel, giving customers the flexibility to choose the optimal material for each application.

Customization and Quality Assurance

Dian Stamping offers multiple pathways to begin a project. Customers can submit 2D drawings, 3D CAD data, or even physical samples for reverse engineering and prototyping. The in-house design team — approximately 35 die designers and technicians — uses industry-standard software to develop optimized die structures tailored to each part's geometry, material, and volume requirements.

Quality is embedded throughout the process. The company's quality management system is ISO 9001 certified, and its manufacturing practices follow IATF 16949-oriented automotive standards. Typical delivery timelines are 30–40 days for steel stamping dies and approximately 70 days for casting stamping dies, subject to project complexity. Free metal samples are available upon request, with freight paid by the customer.

More Than Just Dies — A True Manufacturing Partner

What distinguishes Dian Stamping from other stamping die manufacturers is its commitment to being a factory — not a trading company. This distinction matters because it means you deal directly with the people who design, build, and test your tooling. There are no middlemen, no markups, and no communication gaps.

In addition to stamping dies and sheet metal parts, the company also produces custom sheet metal parts, checking fixtures, and welding jigs — making it a one-stop source for automotive metal component manufacturing. This breadth of capability is especially valuable for Tier 1 suppliers and OEMs looking to consolidate their vendor base without compromising on quality or delivery.

Why Global OEMs Choose Dian Stamping

Here is a snapshot of what Dian Stamping brings to the table:

• 20+ Years of Experience — Established in 2003, serving global automotive brands for over two decades.
• 50,000 m² Facility — Modern manufacturing campus with a dedicated 4,000 m² die workshop.
• 110+ Skilled Employees — Including 35 die designers and technicians driving continuous improvement.
• 2,000 Sets/Year Capacity — For medium and small stamping dies, with expansion underway.
• ISO 9001 Certified — With IATF 16949-oriented quality practices.
• Multi-Material Processing — Multiphase steel, aluminum, rolled plate, and stainless steel.
• End-to-End Service — From die design to stamped parts, checking fixtures, and welding jigs.
• Direct Factory Pricing — No trading company markups, competitive global delivery.