Two Decades of Engineering Excellence — From Custom Tooling to High-Volume Production

In the fast-paced world of automotive manufacturing, the difference between a reliable supply chain and a risky one often comes down to one thing: the quality of your metal stamping dies. Every stamped component — from a door hinge reinforcement plate to a complex body-in-white panel — begins with a precision-engineered die. And behind every great die is a manufacturer with the right experience, technology, and quality systems in place. That is exactly where DIAN STAMPING stands apart.

Headquartered in Linhai, Zhejiang Province, DIAN STAMPING (LINHAI DIAN MOULD CO., LTD.) has been a trusted name in the metal forming industry since 2003. With a 50,000-square-meter modern production facility, a dedicated team of over 110 skilled professionals, and an annual output of approximately 2,000 sets of stamping dies, the company has earned its reputation as one of China's most reliable stamping die manufacturers for the global automotive market.

A Full-Spectrum One-Stop Manufacturer

DIAN STAMPING is not a trading company or a middleman. It is a full-fledged factory that covers the entire value chain — from die design and development, through sheet metal stamping and welding, to powder coating and final assembly. This vertically integrated model means fewer handoffs, tighter quality control, and faster lead times for customers.

1. Precision Stamping Dies & Tooling
DIAN specializes in progressive dies, transfer dies, and tandem/multi-station dies for large and medium-sized complex parts. Every die is designed using advanced CAD/CAM systems (AutoCAD, SolidWorks, CATIA) and undergoes rigorous tryout and testing before delivery. Typical lead time is 30–40 days for steel stamping dies and approximately 70 days for casting dies.

2. Custom Sheet Metal Stamped Parts
With 20 years of hands-on experience, DIAN manufactures high-precision stamped components for automotive, electrical, hardware, and home appliance industries. The company supports everything from prototype development to high-volume production runs, working with a wide range of materials including multi-phase steel, aluminum, stainless steel, and custom rolled steel.

3. Welding Assembly & Fabrication
Beyond individual parts, DIAN offers integrated welding assembly services, combining precision stamping with expert welding to deliver ready-to-assemble sub-assemblies. This reduces the number of suppliers a customer needs to manage and shortens the overall production timeline.

4. Checking Fixtures & Welding Jigs
Quality assurance is built into every step. DIAN designs and builds high-precision checking fixtures and welding jigs to ensure dimensional accuracy, repeatability, and consistency across all production batches. Press dies and checking fixtures go hand in hand, and DIAN delivers them as integrated solutions.

Certified Quality That Industry Leaders Trust

When your components go into vehicles from global OEMs, quality is not optional — it is mandatory. DIAN STAMPING is fully certified under IATF 16949, ISO 9001, and TUV standards, and is recognized as a National High-Tech Enterprise in China. These certifications are not just wall decorations; they reflect a disciplined quality management system that covers everything from incoming material inspection to final dimensional validation using CMM and 3D scanning equipment.

The company has also been awarded the title of Zhejiang Provincial Science and Technology SME and operates a dedicated High-Tech R&D Laboratory, where new materials, processes, and die designs are continuously developed and patented.

Automotive Applications Backed by Real Expertise

DIAN STAMPING's automotive stamping dies and stamped parts are used across a wide range of vehicle systems, including:

Body-in-White (BIW) — Side frames, spare tire wells, A-pillar panels, and structural reinforcements.
Door Systems — Hinge reinforcement plates, water-cut panels, inner and outer door components.
Seating Systems — Seat basins, support beams, B-pillar liners, and adjustment brackets.
Chassis & Suspension — Control arms, swing arms, front floor cross members, and frame assemblies.
Dashboard & Instrument Panels — Structural supports and mounting brackets.
Exhaust & Fuel Systems — Heat shields, fuel tank components, and flow channel parts.

This breadth of application experience means DIAN's engineering team understands the specific tolerance, material, and performance requirements of each system, enabling them to deliver components that meet or exceed OEM specifications.

Why Global OEMs Choose DIAN

The company's client roster — which includes KIA, BYD, Toyota, Honda, Suzuki, and Geely — speaks for itself. These partnerships are built on consistent delivery, competitive pricing, and a willingness to go the extra mile. DIAN offers:

• Free design assistance and tooling proposals — Send 2D drawings, 3D data, or physical samples, and the engineering team will develop a custom solution.
• Free samples — Prototype parts are available for evaluation before committing to production.
• Flexible OEM/ODM support — Non-standard customizations are welcome for automotive, electrical, hardware, and appliance applications.
• Factory-direct pricing — As a vertically integrated manufacturer with no outsourcing, DIAN offers competitive cost structures without compromising quality.
• Reliable lead times — 30–40 days for steel dies, ~70 days for casting dies, with expedited options available.

Looking Ahead: Continuous Investment in Capacity

DIAN STAMPING is not standing still. The company is investing in a new 35,000-square-meter facility equipped with automated production lines, advanced press systems, electrophoresis and powder coating lines, and expanded R&D laboratories. This expansion will significantly increase production capacity and further strengthen the company's ability to serve global customers with speed and consistency.