When automotive OEMs and Tier-1 suppliers search for a manufacturing partner capable of handling complex stamping projects from concept to delivery, few can match the depth of experience and vertical integration offered by LINHAI DIAN MOULD CO., LTD. Operating under the brand Dian Stamping Company, this China-based manufacturer has spent more than two decades refining its capabilities in stamping die manufacturers, sheet metal fabrication, and precision inspection tooling. The result is a one-stop production ecosystem that simplifies supply chains, reduces costs, and accelerates time-to-market for automotive body, chassis, seating, and powertrain components.

Two Decades of Automotive Manufacturing Excellence

Established in 2003 in Huangyan, Taizhou, Zhejiang Province, Dian Stamping has grown from a specialized tooling shop into a full-scale manufacturing facility covering approximately 50,000 m², with a dedicated die workshop of 4,000 m². The company employs around 110 people, including roughly 35 die designers and technicians, and reports an annual die turnover of approximately RMB 50 million. With a production capacity of about 2,000 sets of medium and small stamping dies per year, the company serves clients that include KIA, BYD, Toyota, Honda, Suzuki, and Geely, and exports to more than 10 countries worldwide.

A planned 35,000 m² expansion featuring new press lines and coating facilities signals the company's commitment to scaling alongside the rapidly evolving automotive industry.

Comprehensive Die Design and Manufacturing Capabilities

At the core of Dian Stamping's offering is its ability to design and build precision automotive stamping dies for a wide range of applications. The company produces progressive dies, transfer dies, and tandem multi-station dies tailored to both large and medium-sized complex parts. Whether the requirement is for body-in-white panels, door system components, seating system structures, or chassis and exhaust parts, Dian Stamping's engineering team brings decades of accumulated expertise to every project.

Material processing capabilities include multiphase steel, aluminum alloys, custom rolled and welded plate, and stainless steel. This versatility allows the company to support modern vehicle programs that demand lightweight materials and high-strength structural components.

Beyond Dies: Full-Spectrum Sheet Metal and Assembly Services

What sets Dian Stamping apart from traditional die shops is its ability to deliver finished stamped parts, not just tooling. As a sheet metal parts supplier, the company offers end-to-end services that include prototyping, stamping, welding, assembly, and surface treatment. This vertical integration means customers can source dies and production parts from a single qualified supplier, reducing logistical complexity and quality assurance overhead.

The company's sheet metal fabrication capabilities cover automotive stamping parts, household appliance components, and custom industrial parts. Secondary operations such as laser cutting, bending, forming, deburring, and powder coating are all available in-house.

Precision Quality Assurance with Checking Fixtures

Dian Stamping manufactures high-precision checking fixtures designed to verify that stamped components conform to GD&T specifications. These inspection tools enable rapid, repeatable quality checks on large production volumes, eliminating measurement variability and ensuring every part meets OEM requirements. The company's quality management system is ISO 9001 certified, with manufacturing practices aligned to IATF 16949 automotive standards.

Welding Jigs for Accurate Assembly

Reliable welding is essential to automotive structural integrity. Dian Stamping designs and builds custom welding jigs that position and hold components with precision during welding operations. These fixtures reduce cycle times, improve repeatability, and minimize rework, making them indispensable for high-volume production lines producing welded assemblies and sub-assemblies.

Factory-Direct Pricing and Customization

As a factory rather than a trading company, Dian Stamping offers competitive direct pricing without intermediary markups. Customers can submit 2D drawings, 3D CAD data, or physical samples for custom die design and part production. Prototype services are available to validate designs before mass production, reducing risk and ensuring manufacturability from the outset.

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 may be provided upon request, with freight paid by the customer.

Why Global Automotive Buyers Choose Dian Stamping