In the competitive world of automotive manufacturing, the quality of your stamping dies determines the quality of your entire production line. For over two decades, Dian Stamping has been the trusted partner for global automotive OEMs seeking precision, reliability, and cost efficiency in their metal forming operations.

Two Decades of Automotive Tooling Expertise

Founded in 2003 in Huangyan, Taizhou, Zhejiang Province, LINHAI DIAN MOULD CO., LTD (Dian Stamping) has grown from a specialized die workshop into a comprehensive one-stop manufacturing partner for the global automotive industry. With a modern facility spanning approximately 50,000 m² and a dedicated die workshop of 4,000 m², the company is equipped to handle the most demanding tooling projects.

What sets Dian Stamping apart is its deep integration of design, manufacturing, and quality assurance under one roof. The company's team of approximately 110 employees includes 35 experienced die designers and technicians who bring decades of combined expertise to every project — from concept to final production.

Comprehensive Automotive Stamping Dies Manufacturing

At the heart of Dian Stamping's offering is its expertise in automotive stamping dies. The company manufactures a full spectrum of precision tooling, including progressive dies for high-volume production, transfer dies for complex multi-stage forming, and tandem dies for large and medium-sized parts. These dies are engineered to handle multiphase steel, aluminum alloys, custom rolled and welded plate, and stainless steel — ensuring compatibility with the full range of modern automotive materials.

The stamping dies are applied across critical automotive systems: body-in-white components, door systems, seating systems, instrument panels, fuel-tank systems, exhaust systems, clutch systems, and chassis systems. This breadth of application demonstrates Dian Stamping's ability to serve every corner of a vehicle's metal structure.

Precision Checking Fixtures for Quality Assurance

Quality control in automotive manufacturing demands more than just good tooling — it requires precise measurement and verification. Dian Stamping's checking fixture solutions are designed to confirm whether manufactured workpieces meet specified dimensions quickly and reliably. Unlike traditional measurement tools such as vernier calipers or micrometers, checking fixtures allow operators to inspect large volumes of parts simply by fixing them in place, eliminating individual measurement variations.

As the company emphasizes, press dies and checking fixtures go hand in hand — they are always required as a set at production sites. Dian Stamping's GD&T-oriented approach ensures that every fixture delivers the accuracy and repeatability that automotive OEMs demand.

Custom Sheet Metal Parts and Welding Solutions

Beyond tooling, Dian Stamping serves as a reliable sheet metal parts supplier for both automotive and household appliance industries. The company produces stamped metal parts, welded assemblies, and custom fabricated components using advanced progressive and transfer stamping techniques. Material options include stainless steel, aluminum, cold-rolled steel, and galvanized steel — with secondary operations such as laser trimming, hemming, flanging, and spot welding available for assembly-ready components.

For assembly operations, Dian Stamping provides custom welding jig solutions designed for accurate, repeatable positioning during welding processes. These fixtures ensure consistent weld quality and dimensional accuracy across production runs, supporting applications from body-in-white assembly to sub-frame and chassis welding.

Trusted by Global Automotive Leaders

Dian Stamping's commitment to quality and precision has earned the trust of leading automotive manufacturers. The company counts KIA, BYD, Toyota, Honda, Suzuki, and Geely among its customers, and exports its products to more than 10 countries worldwide. This global footprint is a testament to the company's ability to meet international quality standards and delivery expectations.

Factory-Direct Pricing and Competitive Lead Times

As a direct factory rather than a trading company, Dian Stamping offers transparent, competitive pricing without intermediary markups. Typical delivery times are 30-40 days for steel stamping dies and approximately 70 days for casting stamping dies, depending on project complexity. The company also offers free metal samples, with freight covered by the customer.

With a planned new 35,000 m² facility featuring advanced press and coating lines, Dian Stamping is continuously expanding its capacity to serve the growing demands of the global automotive industry.