Two Decades of Stamping Expertise

Founded in 2003 and headquartered in Huangyan, Taizhou, Zhejiang Province, Dian Stamping (LINHAI DIAN MOULD CO., LTD) has spent over 20 years perfecting the art and science of metal stamping. The company's modern facility spans approximately 50,000 m², with a dedicated die workshop of 4,000 m² and a team of around 110 employees, including 35 highly skilled die designers and technicians.

This scale of operation translates into real manufacturing power: an annual capacity of approximately 2,000 sets of medium and small stamping dies, with an annual die turnover of roughly RMB 50 million. A planned 35,000 m² expansion featuring new press and coating lines will further extend the company's capabilities in the near future.

Dian Stamping's customer roster speaks to its global competitiveness. The company serves OEMs including KIA, BYD, Toyota, Honda, Suzuki, and Geely, and exports to more than 10 countries across multiple continents.

Comprehensive Die and Stamping Capabilities

The company's core strength lies in its ability to handle the full spectrum of stamping die manufacturing. Whether the requirement is for progressive dies, transfer dies, or tandem multi-station dies, Dian Stamping's engineering team brings decades of combined experience to every project.

Progressive die stamping is one of the most efficient methods for high-volume automotive production. In this process, a metal strip moves through a series of die stations, each performing a distinct operation — cutting, forming, punching, and bending — until a finished part emerges at the final station. This eliminates the need for multiple setups and dramatically reduces cycle times. Dian Stamping's progressive dies are engineered for complex automotive components including body-in-white structural parts, door system reinforcements, seating system brackets, and chassis components.

For larger and more complex parts, Dian Stamping employs transfer die and tandem die technologies. These systems use mechanical transfer mechanisms or individual press stations to move parts through sequential forming operations, enabling the production of deep-drawn and intricate geometries that single-station dies cannot achieve.

Modern automotive designs demand materials that balance strength, weight, and formability. Dian Stamping has extensive experience processing multiphase steel (AHSS), aluminum alloys, custom rolled and welded plate, and stainless steel — meeting the material challenges of EV battery enclosures, lightweight body panels, and high-strength structural components.

Beyond Dies: A Complete Manufacturing Ecosystem

What sets Dian Stamping apart from traditional tooling shops is its vertically integrated service model. The company doesn't just build dies — it stamps parts, inspects them, and supports welding and assembly, all under one roof.

From automotive body panels and structural brackets to household appliance components, Dian Stamping's stamping press lines deliver high-volume production with consistent quality. The company offers custom sheet metal fabrication, including laser cutting, bending, forming, and powder coating, for both automotive and industrial applications.

Every stamped part must meet exact dimensional specifications. Dian Stamping's checking fixture solutions are designed for GD&T-oriented inspection, enabling rapid verification of large production volumes. A checking fixture allows operators to confirm whether a manufactured workpiece meets its determined dimensions in seconds, eliminating individual measurement variation and ensuring consistent quality across every batch. As the company emphasizes, press dies and checking fixtures go hand in hand — one is incomplete without the other.

Accurate assembly begins with accurate positioning. Dian Stamping's welding jig services provide custom-designed fixtures for precise, repeatable welding operations. From spot welding jigs to rotating welding fixtures, from chassis welding jigs to exhaust system tooling, the company's jig solutions ensure that assembled components meet the tight tolerances required by automotive OEMs.

Quality Systems and Certifications

Customization is available from 2D drawings, 3D data, or physical samples. Prototype services are also offered, allowing customers to validate designs before committing to full production tooling. Free metal samples may be provided upon request, with freight paid by the customer.

Why Global OEMs Choose Dian Stamping

In a market crowded with tooling suppliers, Dian Stamping differentiates itself through four key advantages:

1. Factory-direct pricing — The company operates as a manufacturer, not a trading company, delivering competitive costs without compromising quality.

2. One-stop accountability — From die design and tryout to stamping, inspection, and welding assembly, one partner manages the entire supply chain, reducing coordination risk.

3. Proven OEM track record — Long-term supply relationships with KIA, BYD, Toyota, Honda, Suzuki, and Geely demonstrate consistent performance across diverse quality and delivery standards.

4. Scalable capacity — With an annual output of 2,000 die sets and a planned 35,000 m² expansion, Dian Stamping can scale with customer programs from prototype to full production.