When you need complex metal components produced at scale with uncompromising precision, finding a single partner who can handle everything from die design to volume production makes all the difference. For over two decades, LINHAI DIAN MOULD CO., LTD (Dian Stamping) has served as a trusted one-stop manufacturing partner for automotive OEMs and Tier suppliers worldwide. Based in Taizhou, Zhejiang Province, this experienced stamping die manufacturers combines advanced tooling capabilities with full-service production, offering everything from progressive and transfer dies to stamped sheet metal parts, checking fixtures, and welding jigs.

More Than Two Decades of Automotive Manufacturing Excellence

Established in 2003, Dian Stamping has built a strong reputation in the automotive manufacturing sector. The company's 50,000 m² modern facility, including a dedicated 4,000 m² die workshop, houses a skilled team of approximately 110 employees — among them about 35 experienced die designers and technicians. This infrastructure supports an annual production capacity of roughly 2,000 sets of medium and small stamping dies, with a reported annual die turnover of approximately RMB 50 million.

The company serves well-known automotive brands including KIA, BYD, Toyota, Honda, Suzuki, and Geely, and has expanded its export reach to more than 10 countries. A planned 35,000 m² expansion facility featuring new press and coating lines signals the company's continued growth trajectory, ready to meet increasing global demand.

Comprehensive Product Portfolio: From Tooling to Finished Parts

What sets Dian Stamping apart is its ability to offer a complete manufacturing ecosystem under one roof. The company's capabilities span four core areas:

Stamping Dies

At the heart of the operation lies precision tooling. Dian Stamping designs and builds automotive stamping dies including progressive dies, transfer dies, and tandem/multi-station dies. These are engineered for complex geometries, tight tolerances, and high-volume production runs. The die shop is equipped to handle a wide range of materials — multiphase steel, aluminum alloys, custom rolled and welded plate, and stainless steel — making it a versatile choice for diverse automotive applications.

Sheet Metal Parts

Beyond tooling, Dian Stamping produces high-quality 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. The company also serves the household appliance industry, manufacturing brackets, panels, hinges, handles, and structural parts with consistent quality.

Checking Fixtures

Quality assurance is built into every project. Dian Stamping's checking fixture solutions are designed to GD&T standards, enabling rapid and accurate inspection of stamped components and welded assemblies. These fixtures eliminate measurement variability, ensuring that every part leaving the facility meets the specified dimensional requirements.

Welding Jigs

To support assembly operations, the company provides custom welding jigs designed for accurate, repeatable production. These fixtures are essential for maintaining consistent weld quality and assembly precision in high-volume manufacturing environments.

Quality Systems and Manufacturing Practices

Dian Stamping operates under an ISO 9001 quality management system and follows IATF 16949-oriented automotive manufacturing practices. This commitment to quality is reflected in every stage of production — from raw material selection through final inspection. The company's in-line quality control processes, combined with precision measurement equipment, help maintain the tight tolerances that automotive customers demand.

Why Choose a Factory-Direct Partner?

One of the most significant advantages of working with Dian Stamping is that it operates as a factory, not a trading company. This means customers benefit from direct manufacturer pricing, full control over production quality, and shorter communication chains. The company's end-to-end capabilities — from die design and prototyping to volume stamping, welding, and assembly — reduce the complexity of managing multiple suppliers and accelerate time-to-market for new vehicle programs.

Whether you are an automotive OEM launching a new model, a Tier supplier looking for a reliable production partner, or an industrial manufacturer seeking custom metal components, Dian Stamping offers the technical expertise, manufacturing scale, and quality systems needed to deliver consistent results.