For automotive OEMs and Tier 1 suppliers, the gap between a stamped part design and a production-ready component can be wide — filled with complications in tooling development, material sourcing, quality validation, and assembly integration. Finding a manufacturing partner who can bridge that entire gap under one roof is no longer a luxury; it is a competitive necessity. Established in 2003, LINHAI DIAN MOULD CO., LTD (Dian Stamping) has spent more than two decades building exactly that kind of integrated capability — from precision die engineering to high-volume stamping, from inspection fixturing to welded assembly — all within a single 50,000 m² facility in Taizhou, Zhejiang.

Two Decades of Stamping Excellence

With over 20 years of industry experience, Dian Stamping has grown from a specialized tooling shop into a comprehensive manufacturing partner serving global automotive brands including KIA, BYD, Toyota, Honda, Suzuki, and Geely. The company's modern facility spans approximately 50,000 m², housing a dedicated die workshop of 4,000 m², a team of around 110 employees including 35 die designers and technicians, and an annual production capacity of approximately 2,000 sets of medium and small stamping dies. This scale allows Dian Stamping to deliver both the engineering depth and production throughput that automotive supply chains demand.

Precision Automotive Stamping Dies for Complex Components

At the core of Dian Stamping's offering is its comprehensive die-making capability. The company designs and manufactures progressive dies, transfer dies, and tandem (multi-station) dies for a wide range of automotive applications. These include body-in-white components, door systems, seating systems, instrument panels, fuel-tank systems, exhaust systems, clutch systems, and chassis systems. The company processes a variety of advanced materials including multiphase steel, aluminum alloys, custom rolled and welded plate, and stainless steel, ensuring that even the most demanding part geometries can be produced with consistent accuracy.

With an annual die turnover of approximately RMB 50 million and a planned expansion featuring a new 35,000 m² facility with advanced press and coating lines, Dian Stamping continues to invest in the infrastructure needed to support next-generation vehicle programs.

Comprehensive Sheet Metal Parts Supplier and Fabrication

Beyond tooling, Dian Stamping operates as a full-scale sheet metal parts supplier, offering custom stamping, laser cutting, bending, forming, and welding assembly services. The company produces stamped metal components for both automotive and household appliance industries, including brackets, panels, hinges, handles, structural reinforcements, evaporator panels, and heat shields. Material options span high-strength steel, aluminum, cold-rolled steel, galvanized steel, and stainless steel, with secondary operations such as deburring, powder coating, and spot welding available to deliver assembly-ready parts.

Customers can submit requirements in the form of 2D drawings, 3D data, or physical samples. Prototype services are also available, allowing for design validation before full-scale production ramp-up. Typical delivery for steel stamping dies is 30-40 days, while casting dies require approximately 70 days, depending on project complexity.

Rigorous Quality Assurance with Precision Checking Fixture Solutions

In automotive manufacturing, dimensional accuracy is not negotiable. Dian Stamping provides high-precision checking fixtures designed to verify that stamped components and welded assemblies conform to specified GD&T requirements. These fixtures enable rapid, repeatable inspection of complex geometries that would be difficult or time-consuming to measure with conventional tools like calipers or micrometers. By integrating checking fixture design and fabrication into its service portfolio, Dian Stamping ensures that every part leaving the factory has been validated against the same standards that its OEM customers use on their own production lines.

Custom Welding Jigs for Accurate Assembly

Complementing its stamping and inspection capabilities, Dian Stamping also designs and manufactures custom welding jigs for precise, repeatable joining operations. From spot welding and arc welding fixtures to dedicated jigs for chassis, exhaust, and frame assemblies, the company's welding solutions support both manual and automated production environments. This end-to-end approach — from die design to stamped parts to inspection to welded assembly — reduces the coordination burden on customers and shortens overall project timelines.

Factory-Direct Value with Global Quality Standards