A Foundation Built on Scale and Experience

Established in 2003 in Huangyan, Taizhou, Zhejiang Province, Linhai Dian Mould Co., Ltd. (Dian Stamping) operates a modern facility spanning approximately 50,000 m², including a dedicated die workshop of 4,000 m². With around 110 employees — among them 35 experienced die designers and technicians — the company produces an annual capacity of roughly 2,000 sets of medium and small stamping dies, with an annual die turnover of approximately RMB 50 million.

This scale is not just about capacity; it translates directly into shorter lead times and cost advantages for customers. Dian Stamping offers automotive stamping dies that include progressive dies, transfer dies, and tandem/multi-station dies, covering everything from body-in-white components to chassis systems, door systems, seating systems, and exhaust systems.

Four Core Capabilities Under One Roof

What sets Dian Stamping apart from traditional die shops is its ability to provide a complete manufacturing ecosystem. Rather than outsourcing downstream processes, the company controls every stage internally, ensuring consistency, quality, and faster project turnaround.

Why Quality Assurance Demands a Checking Fixture

In automotive stamping, dimensional accuracy is not negotiable. A single out-of-spec component can disrupt an entire assembly line. That is why Dian Stamping pairs every die set with a corresponding checking fixture — a dedicated inspection tool that quickly confirms whether a manufactured workpiece meets the specified dimensions. Unlike general-purpose measurement tools, checking fixtures allow operators to inspect large volumes of parts simply by fixing them into the fixture, making them indispensable for production-line quality control. Press dies and checking fixtures are always produced as a matched set, ensuring that every stamped part can be verified against the same reference geometry used during die tryout.

Vertical Integration: The Competitive Edge

Many stamping manufacturers specialize in one aspect of the production chain — die making, stamping, or inspection. Dian Stamping combines all of them. This vertically integrated model delivers several practical advantages:

• Faster communication: Die designers work directly with the production team, eliminating the back-and-forth delays of outsourcing.
• Consistent quality: The same team that designs the die also designs the checking fixture, ensuring measurement reference alignment.
• Cost efficiency: Factory-direct pricing without intermediary markups.
• Shorter lead times: Typical delivery is 30–40 days for steel stamping dies and approximately 70 days for casting dies.
• Flexible customization: Parts can be developed from 2D drawings, 3D data, or physical samples, with prototype services available.

Materials and Application Expertise

Dian Stamping processes a wide range of materials to meet diverse automotive requirements — from high-strength steel and multiphase steel to aluminum alloys, custom rolled and welded plate, and stainless steel. Application areas span body-in-white panels, door system components, seating system brackets and beams, instrument panel structures, fuel-tank systems, exhaust heat shields, clutch system parts, and chassis components. This breadth of experience means that whether a customer needs a simple bracket or a complex multi-stage progressive die part, Dian Stamping has the engineering knowledge to deliver.

Quality Systems and Certifications

Quality management at Dian Stamping follows ISO 9001 standards, with manufacturing practices aligned to IATF 16949-oriented automotive requirements. As a factory — not a trading company — the company maintains direct control over every production step, from material receiving through die tryout, stamping, welding, inspection, and final assembly. Free metal samples are available for customer evaluation, and the company welcomes on-site audits to verify its quality systems firsthand.

Global Reach, Local Partnership

Dian Stamping's customer base includes some of the world's best-known automotive brands — KIA, BYD, Toyota, Honda, Suzuki, and Geely — and its products are exported to more than 10 countries. The company positions itself as a long-term supply partner rather than a transactional vendor, offering factory pricing, engineering support, and the flexibility to scale from prototypes to high-volume production runs.