When sourcing automotive stamping dies and stamped components, most OEMs and Tier 1 suppliers face the same dilemma: should they engage separate suppliers for die design, sheet metal stamping, inspection fixtures, and welding assemblies? Each handoff adds cost, lead time, and quality risk. For over two decades, Dian Stamping (LINHAI DIAN MOULD CO., LTD) has offered a different answer — a fully integrated manufacturing ecosystem under one roof, backed by a 50,000 m² facility, 110 skilled professionals, and an annual output exceeding 2,000 sets of medium and small stamping dies.

A Manufacturing Legacy Built Since 2003

Established in 2003 in Huangyan, Taizhou, Zhejiang Province, Dian Stamping has grown from a specialised tooling workshop into a comprehensive stamping die manufacturers and metal parts fabricator. The company's 20-plus-year track record is reflected in its client roster: it serves global automotive brands including KIA, BYD, Toyota, Honda, Suzuki, and Geely, with exports reaching more than 10 countries. This longevity is not accidental — it is the result of consistent investment in precision machining, talent development, and process control.

Scale That Delivers: 2,000 Die Sets Per Year

Capacity matters in automotive tooling. Dian Stamping operates a modern 50,000 m² campus with a dedicated 4,000 m² die workshop, housing advanced CNC machining centres, tryout presses, and assembly stations. The company's annual die manufacturing capacity reaches approximately 2,000 sets of medium and small stamping dies, covering progressive dies, transfer dies, and tandem/multi-station dies.

A planned 35,000 m² expansion featuring new press lines and coating facilities will further boost capacity, enabling the company to take on larger, more complex programs with shorter lead times.

Four Product Pillars, One Integrated Supply Chain

What sets Dian Stamping apart is its vertically integrated product portfolio. Instead of managing multiple vendors across the production chain, customers can source four critical categories from a single qualified partner:

This one-stop model eliminates the coordination overhead of multi-vendor sourcing, reduces cumulative lead time, and ensures that die design intent is carried through to the final assembled part.

Quality Built In: ISO 9001 and IATF 16949 Practices

Dian Stamping operates under an ISO 9001-certified quality management system, with processes aligned to IATF 16949 automotive manufacturing standards. Quality assurance spans the entire production lifecycle — from in-process inspection during die manufacturing to final part validation using CMM and 3D scanning. The company's checking fixture capability adds an extra layer of quality control, enabling fast, repeatable dimensional verification of production parts right on the shop floor.

For customers requiring material certifications, the company supports multiphase steel, aluminium alloys, and stainless steel processing, with in-house tryout and validation to ensure die performance matches the design simulation.

Material Versatility and Engineering Depth

Modern automotive programs demand flexibility in material selection. Dian Stamping's engineering team — comprising approximately 35 die designers and technicians — has extensive experience processing:

• High-strength steel (HSS) and advanced high-strength steel (AHSS)
• Aluminium alloys for lightweight body structures
• Stainless steel for exhaust and trim components
• Custom rolled and welded plate for structural applications

The company accepts customisation from 2D drawings, 3D data, or physical samples, and offers prototype services to validate designs before committing to full production tooling. Typical delivery stands at 30–40 days for steel stamping dies and approximately 70 days for casting dies, with free metal samples available (freight paid by the customer).

Global Reach, Factory Pricing

As a factory-direct manufacturer rather than a trading company, Dian Stamping offers competitive pricing without sacrificing quality. The company's global footprint spans more than 10 countries, with established supply relationships with major automotive OEMs and Tier suppliers across Asia, Europe, and the Americas. Whether the requirement is a single progressive die for a new model launch or a full vehicle program involving multiple die types, checking fixtures, and welding jigs, Dian Stamping has the engineering bandwidth and production capacity to deliver.

Conclusion: One Partner, Full Responsibility

In an industry where quality, lead time, and cost are equally critical, Dian Stamping's vertically integrated model provides a clear advantage. By combining 20+ years of tooling expertise, 2,000-set annual die capacity, a 50,000 m² facility, and a full suite of services — from die design and sheet metal stamping to checking fixtures and welding jigs — the company delivers what many suppliers cannot: end-to-end responsibility for your automotive manufacturing program.