In the competitive landscape of automotive manufacturing, the quality of tooling directly determines the precision, consistency, and cost-efficiency of mass production. As a leading stamping dies manufacturer based in Zhejiang, China, LINHAI DIAN MOULD CO., LTD (Dian Stamping) has been serving global automotive OEMs and Tier-1 suppliers since 2003. With over two decades of hands-on experience, a 50,000 m² modern facility, and a dedicated team of 35 engineers and technicians, Dian Stamping has earned its reputation as a reliable one-stop partner for automotive stamping tooling and precision metal parts.

Company Background: Built on Decades of Die-Making Heritage

Founded in 2003 in Huangyan, Taizhou — a region long recognized as a hub for mold and die manufacturing in China — Dian Stamping started as a specialized die shop and has grown into a full-service manufacturing partner. The company's 20+ years of industry experience are reflected in its deep understanding of die design, material behavior, and high-volume production challenges. Today, Dian Stamping exports its tooling and parts to more than 10 countries, working with well-known automotive brands including KIA, BYD, Toyota, Honda, Suzuki, and Geely.

Comprehensive Product Portfolio: From Dies to Finished Parts

Dian Stamping offers four integrated product categories that cover the entire stamping value chain — from tooling design to finished component delivery:

Stamping Dies — Progressive dies, transfer dies, and tandem/multi-station dies for large and medium-sized complex automotive parts. Whether you need high-speed progressive tooling for small components or large transfer dies for body panels, Dian Stamping delivers precision tooling built to last.

Sheet Metal Parts — Custom stamping, sheet-metal fabrication, and welding assemblies for automotive and household-appliance applications. The company processes multiphase steel, aluminum, custom rolled and welded plate, and stainless steel, offering prototyping and high-volume production.

Checking Fixtures — High-precision, GD&T-oriented inspection fixtures that ensure every stamped component meets exact dimensional specifications. A checking fixture is essential for quality assurance on the production floor, eliminating measurement inconsistencies and enabling rapid inspection of large part volumes.

Welding Jigs — Custom welding fixtures designed for accurate, repeatable positioning and assembly, supporting automotive body-in-white and sub-assembly welding operations.

Manufacturing Scale and Technical Capabilities

Dian Stamping's manufacturing strength is backed by substantial infrastructure. The company operates a modern facility covering approximately 50,000 m², including a dedicated die workshop of 4,000 m². With around 110 employees — of whom 35 are die designers and technicians — the company achieves an annual capacity of about 2,000 sets of medium and small stamping dies, with an annual die turnover of approximately RMB 50 million. A planned 35,000 m² expansion facility featuring new press and coating lines is underway, further strengthening its production capacity.

The company's technical capabilities span the full spectrum of automotive stamping dies, including progressive, transfer, and compound dies for high-volume metal forming. Dian Stamping processes a wide range of materials — from high-strength steel and multiphase steel to aluminum alloys and stainless steel — ensuring that each die is optimized for the specific material characteristics and production requirements.

Quality Assurance and Certifications

Quality is at the core of Dian Stamping's operations. The company's quality management system is certified to ISO 9001, and its manufacturing practices are aligned with IATF 16949 standards for automotive production. Every die undergoes rigorous tryout and validation before delivery, and the company's checking fixture solutions enable in-line dimensional verification using CMM and 3D scanning to meet OEM specifications. Free metal samples are available upon request (freight paid by the customer), allowing potential partners to evaluate quality firsthand.

Application Areas: Serving Critical Automotive Systems

Dian Stamping's tooling and parts are used across a wide range of automotive systems, demonstrating the company's versatility and engineering depth:

— Body-in-White (BIW): Door panels, hoods, fenders, side frames, and structural reinforcements

— Door Systems: Hinge reinforcement plates, guide rails, water-cut panels, and inner/outer panels

— Seating Systems: Seat basins, support beams, B-pillar liners, and floor cross members

— Instrument Panels: Dashboard support structures and cross-car beams

— Chassis Systems: Control arms, swing arms, and suspension components

— Exhaust Systems: Heat shields and thermal protection stampings

— Fuel-Tank Systems: Tank brackets and mounting components

Why Choose Dian Stamping as Your Manufacturing Partner