In the automotive industry, precision, reliability, and cost-efficiency are non-negotiable. Whether you are sourcing tooling for a new vehicle program or scaling production of stamped metal components, the choice of your manufacturing partner directly impacts your bottom line and your product quality. For over two decades, LINHAI DIAN MOULD CO., LTD — known globally as Dian Stamping — has been delivering high-quality automotive stamping dies, sheet metal parts, checking fixtures, and welding jigs to automotive OEMs and Tier suppliers worldwide.

A Manufacturing Partner with Proven Scale

Established in 2003 and headquartered in Huangyan, Taizhou, Zhejiang Province, Dian Stamping 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 experienced die designers and technicians — the company produces an annual capacity of approximately 2,000 sets of medium and small stamping dies. The company’s annual die turnover is reported at approximately RMB 50 million, and a new 35,000 m² facility featuring advanced press and coating lines is already in development, signaling a strong commitment to future growth.

Comprehensive Capabilities Under One Roof

Unlike many suppliers that specialize in only one aspect of the manufacturing chain, Dian Stamping offers a truly integrated service. From tool and die manufacturing to stamping, welding, assembly, and inspection, the company provides end-to-end solutions that simplify supply chain management for its customers. The core capabilities include:

Stamping Dies: Dian Stamping specializes in precision progressive die stamping, transfer dies, and tandem/multi-station dies for large and medium-sized complex automotive parts. The tooling team handles a wide range of materials including multiphase steel, aluminum, custom rolled and welded plate, and stainless steel.

Sheet Metal Parts: Beyond die manufacturing, the company produces stamped sheet-metal components for automotive body-in-white, door systems, seating systems, instrument panels, fuel-tank systems, exhaust systems, clutch systems, and chassis systems. Household appliance stamping is also a growing segment.

Checking Fixtures: Every stamped part needs to be verified. Dian Stamping designs and builds high-precision checking fixture solutions based on GD&T principles, ensuring that each component meets the stringent dimensional requirements of modern automotive engineering.

Welding Jigs: To support accurate and repeatable production assembly, the company offers custom welding jigs designed for specific part geometries and production volumes.

Global Customers, Local Efficiency

Dian Stamping’s customer roster speaks to its quality and reliability. The company serves major automotive OEMs including KIA, BYD, Toyota, Honda, Suzuki, and Geely, and exports to more than 10 countries. By operating as a factory-direct supplier — not a trading company — Dian Stamping offers competitive pricing while maintaining full control over quality and delivery timelines.

Quality Systems and Certifications

Quality is embedded in every stage of the manufacturing process. The company operates an ISO 9001-certified quality management system and follows IATF 16949-oriented automotive manufacturing and quality practices. This commitment to structured quality assurance means that every die, part, and fixture leaving the factory has been checked against defined standards.

Why Dian Stamping Stands Out

In a competitive market, several factors set Dian Stamping apart from other Chinese stamping die manufacturers:

Factory-direct pricing: No middleman markups — you deal directly with the manufacturer.

20+ years of experience: Deep institutional knowledge in automotive tooling and metal forming.

One-stop service: From die design and manufacturing to stamping, welding, and inspection — all under one roof.

Proven global track record: Serving OEMs like KIA, BYD, Toyota, and Geely, with exports to over 10 countries.

Scalable capacity: 2,000 sets of dies annually, with a major new facility under development.

Material versatility: Multiphase steel, aluminum, stainless steel, and custom alloys.

Applications Across Vehicle Systems

Dian Stamping’s tooling and components are used across a wide range of automotive systems. The company’s expertise covers body-in-white structural parts, door system components, seating system stampings, instrument panel brackets and reinforcements, fuel-tank and exhaust system parts, clutch system components, and chassis system parts. This breadth of application experience means that whether you are developing a new EV platform or optimizing an existing ICE vehicle program, Dian Stamping has the engineering know-how to support your project.