A Manufacturing Partner Built for Automotive Programs

Established in 2003 and headquartered in Huangyan, Taizhou, Zhejiang Province, Linhai Dian Mould Co., Ltd (Dian Stamping) operates a modern 50,000 m² facility with a dedicated 4,000 m² die workshop. The company employs approximately 110 people, including 35 skilled die designers and technicians. With an annual capacity of roughly 2,000 sets of medium and small stamping dies and a reported annual die turnover of approximately RMB 50 million, Dian Stamping has the scale and stability to support long-running production programs.

The company's client roster includes KIA, BYD, Toyota, Honda, Suzuki, and Geely, and it exports to more than 10 countries. This breadth of experience across both Korean, Japanese, and Chinese OEMs gives Dian Stamping a unique understanding of varying quality standards and engineering expectations.

Core Capabilities: From Die Design to Mass Production

What sets Dian Stamping apart is its vertically integrated service model. Rather than acting as a broker, the company operates as a true factory — designing and manufacturing tooling in-house, then running production stamping, welding, and assembly under one roof. This end-to-end control reduces lead times, simplifies communication, and ensures that the die works exactly as intended when it reaches the production floor.

The company specializes in progressive die stamping, transfer dies, and tandem/multi-station dies for complex automotive parts. Material capabilities include multiphase steel, aluminum, custom rolled and welded plate, and stainless steel — covering the full range of modern lightweight vehicle construction. Application areas span body-in-white, door systems, seating systems, instrument panels, fuel-tank systems, exhaust systems, clutch systems, and chassis systems.

Precision Tooling for Every Stage of the Vehicle

Dian Stamping's product and service offering is organized into four complementary categories, each designed to support a specific phase of automotive manufacturing:

• Stamping Dies — Precision automotive stamping dies including progressive, transfer, and tandem dies for large and medium-sized complex parts. The die design team uses industry-standard CAD/CAM tools and follows GD&T principles to ensure first-time-right tooling.
• Sheet Metal Parts — High-volume production of automotive and household-appliance stampings, sheet-metal fabrication, custom metal parts, and welding assemblies. The company supports prototypes, low-volume pre-runs, and full-scale mass production.
• Checking Fixtures — High-precision, GD&T-oriented inspection fixtures that verify dimensional accuracy of stamped components and assemblies. A checking fixture from Dian Stamping eliminates measurement subjectivity and speeds up quality assurance on the production line.
• Welding Jigs — Custom welding fixtures designed for accurate, repeatable positioning during assembly welding. These jigs reduce rework and ensure consistent weld quality across production batches.

Quality Management and Industry Certifications

Dian Stamping operates under an ISO 9001 quality-management system and follows IATF 16949-oriented automotive manufacturing practices. The company's quality assurance process includes in-line inspections, 3D CMM measurement, and functional testing of every die and fixture before shipment. This commitment to precision is reflected in the company's ability to hold tight tolerances on complex geometries, serving customers who demand zero-defect delivery.

Flexible Customization and Fast Turnaround

Dian Stamping accepts custom orders from 2D drawings, 3D data, or physical samples. Prototype services are available for new product development, enabling customers to validate designs before committing to production tooling. Typical delivery timelines are 30–40 days for steel stamping dies and approximately 70 days for casting stamping dies, depending on project complexity. A planned 35,000 m² expansion facility featuring new press and coating lines will further reduce lead times and increase capacity in the near future.

Why Automotive OEMs Choose Dian Stamping

In a competitive market, the difference between a good stamping partner and a great one comes down to three factors: engineering depth, manufacturing control, and supply reliability. Dian Stamping delivers on all three fronts. As a direct factory — not a trading company — the company offers transparent pricing, direct communication with the engineering team, and full visibility into production progress. With more than 20 years of die-making heritage, a skilled technical workforce, and a growing global footprint, Dian Stamping is well positioned to serve the next generation of automotive platforms.