In the automotive industry, the quality of a vehicle begins with the tooling that shapes its parts. Every door panel, chassis reinforcement, and structural bracket starts as raw metal that must be formed with micron-level precision — and that precision depends entirely on the dies and tooling behind the press. As global automakers push for lighter, stronger, and more complex vehicle architectures, the demand for reliable stamping die manufacturers has never been higher. For over two decades, LINHAI DIAN MOULD CO., LTD — operating as DIAN STAMPING — has been meeting that demand from its modern facility in Zhejiang, China, serving some of the world's best-known automotive brands.

Two Decades of Die-Making Excellence

Established in 2003 in Huangyan, Taizhou, Zhejiang Province, DIAN STAMPING brings more than 20 years of focused experience in the design and manufacture of automotive stamping tooling. The company operates from a modern facility spanning approximately 50,000 m², with a dedicated die workshop of 4,000 m². A team of around 110 employees — including approximately 35 die designers and technicians — works across every stage of production, from concept design to tryout and delivery. The company's annual die turnover of approximately RMB 50 million and capacity of about 2,000 sets of medium and small stamping dies per year reflect a scale that few independent die shops can match.

DIAN is currently expanding its capabilities with a new 35,000 m² facility featuring advanced press lines and coating systems, signaling a long-term commitment to serving the evolving needs of the automotive sector.

Comprehensive Stamping Die Solutions

As a full-service automotive stamping dies manufacturer, DIAN STAMPING offers a complete spectrum of tooling solutions. The company designs and builds progressive dies for high-speed, multi-station production of complex parts; transfer dies for large and medium-sized panels; and tandem or multi-station dies for parts requiring multiple forming operations. Each die is engineered to handle a wide range of materials, including multiphase steel, aluminum alloys, custom rolled and welded plate, and stainless steel — materials that are increasingly common in modern lightweight vehicle designs.

DIAN's stamping dies are used across a broad range of automotive applications, including body-in-white components, door systems, seating systems, instrument panels, fuel-tank systems, exhaust systems, clutch systems, and chassis systems. This breadth of application experience means that DIAN engineers understand not just how to build a die, but how each die performs in the specific production environment of the customer.

Beyond Dies: Sheet Metal Parts, Checking Fixtures, and Welding Jigs

DIAN STAMPING is not just a die maker — it is a one-stop manufacturing partner for automotive OEMs and Tier suppliers. The company produces custom sheet metal parts for both automotive and household appliance applications, including brackets, panels, hinges, structural components, and welding assemblies. This vertical integration gives customers a single point of accountability from tooling through production.

For quality assurance, DIAN offers high-precision checking fixture solutions that enable fast, repeatable inspection of stamped parts. Checking fixtures are essential at production sites where complex geometries make traditional measurement tools impractical. DIAN's checking fixtures are designed with GD&T principles to eliminate individual measurement variation and ensure every part meets the specified tolerances. The company also designs and builds custom welding jigs for accurate, repeatable welding and assembly operations, supporting the full production cycle from raw material to finished assembly.

• Stamping Dies — Progressive, transfer, and tandem dies for complex automotive parts
• Sheet Metal Parts — Custom stamping, fabrication, and welding assemblies
• Checking Fixtures — High-precision GD&T inspection fixtures
• Welding Jigs — Custom fixtures for accurate production welding

Global Customer Base, Proven Track Record

DIAN STAMPING serves automotive OEMs including KIA, BYD, Toyota, Honda, Suzuki, and Geely, and exports to more than 10 countries. This global customer base speaks to the company's ability to meet the stringent quality, delivery, and communication standards required by international automotive programs. Whether producing stamping dies for a new electric vehicle platform or sheet metal parts for an established model line, DIAN brings the same commitment to precision, consistency, and on-time delivery.

Quality Systems and Delivery You Can Rely On

DIAN STAMPING operates under ISO 9001 quality management and follows IATF 16949-oriented automotive manufacturing practices. The company offers flexible customization options — customers can submit requirements in the form of 2D drawings, 3D data, or physical samples for reverse engineering. Prototype services are available for new product development, and free metal samples can be provided with the customer covering freight.

Typical delivery times are 30–40 days for steel stamping dies and approximately 70 days for casting stamping dies, depending on project complexity. As a factory-direct manufacturer rather than a trading company, DIAN offers competitive pricing while maintaining direct control over quality throughout the production process.

Why Automotive Professionals Choose DIAN STAMPING

What sets DIAN STAMPING apart in a competitive market is the combination of scale, experience, and end-to-end capability. With a 50,000 m² facility, 110 skilled employees, 20+ years of industry experience, and a customer roster that includes major global OEMs, DIAN offers the reliability and capacity that automotive programs demand. The company's planned expansion into a new 35,000 m² facility with advanced press and coating lines further demonstrates its commitment to long-term partnership with the automotive industry.