When global automotive OEMs search for a stamping partner, they look beyond price — they demand precision, production scale, and a proven track record. Dian Stamping Company, operating under LINHAI DIAN MOULD CO., LTD, has been delivering exactly that for over two decades.

A Manufacturing Legacy Built on Precision

Founded in 2003 in Huangyan, Taizhou, Zhejiang Province, Dian Stamping has grown from a specialized tooling workshop into a comprehensive manufacturer of automotive stamping dies, stamped sheet-metal parts, checking fixtures, and welding assemblies. With over 20 years of industry experience, the company has earned the trust of OEMs including KIA, BYD, Toyota, Honda, Suzuki, and Geely, and now exports to more than 10 countries worldwide.

Scale That Delivers

Production capacity is a critical factor when selecting a die manufacturing partner. Dian Stamping operates a modern facility covering approximately 50,000 m², with a dedicated die workshop of 4,000 m² and a planned 35,000 m² expansion featuring new press and coating lines. The company employs around 110 skilled professionals, including 35 die designers and technicians, and maintains an annual capacity of approximately 2,000 sets of medium and small stamping dies — with an annual die turnover of roughly RMB 50 million.

End-to-End Tooling Capabilities

Unlike many suppliers who specialize in only one type of tooling, Dian Stamping offers a full spectrum of progressive die stamping, transfer dies, and tandem/multi-station dies. This versatility allows the company to serve a wide range of automotive applications, including body-in-white, door systems, seating systems, instrument panels, fuel-tank systems, exhaust systems, clutch systems, and chassis systems. Materials processed include multiphase steel, aluminum, custom rolled and welded plate, and stainless steel — covering the full range of modern automotive manufacturing requirements.

Beyond Dies: A One-Stop Manufacturing Partner

Dian Stamping positions itself as a true one-stop partner, not just a tooling supplier. Beyond dies, the company delivers:

Stamped Sheet Metal Parts — High-volume production of automotive and household-appliance stampings, from custom brackets to complex structural components.

Checking Fixtures — Precision GD&T-oriented inspection fixtures designed to verify dimensional accuracy of stamped parts and welded assemblies, eliminating measurement variability.

Welding Jigs and Assemblies — Custom welding fixtures and welded sub-assemblies that ensure repeatable, accurate positioning during production.

This integrated approach means customers can source custom sheet metal parts, tooling, inspection fixtures, and welded assemblies from a single qualified supplier — reducing supply chain complexity, lead times, and overall project costs.

Quality Systems That Meet Global Standards

Quality assurance at Dian Stamping is built on a foundation of ISO 9001 certification, with manufacturing practices aligned to IATF 16949 automotive standards. The company's quality management system covers the entire production lifecycle — from incoming material inspection and in-process checks to final dimensional validation using CMM and 3D scanning equipment. Every die set undergoes rigorous tryout and validation before shipment, ensuring that customers receive tooling that is production-ready from day one.

Customization and Fast Turnaround

Dian Stamping offers full customization services based on 2D drawings, 3D data, or physical samples. Prototype services are available for new product development. 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 paid by the customer) to help buyers evaluate material quality before committing to full production.

Why OEMs Choose Dian Stamping

Several factors distinguish Dian Stamping from other Chinese die manufacturers:

Factory-Direct Pricing — As a manufacturer, not a trading company, Dian Stamping offers competitive pricing without intermediary markups.

Proven OEM Track Record — Long-term supply relationships with major global automotive brands demonstrate consistent quality and delivery performance.

Comprehensive Service Range — From die design and sheet metal stamping to checking fixtures and welding jigs, all under one roof.

Engineering Depth — 35 die designers and technicians provide robust engineering support for complex tooling projects.

Scalable Production — 2,000 sets annual die capacity and a major facility expansion underway ensure the ability to scale with customer needs.