In the competitive world of automotive manufacturing, the quality of your tooling and stamped components directly impacts production efficiency, part consistency, and overall vehicle quality. Choosing the right partner for automotive stamping dies and precision metal parts is one of the most critical decisions an OEM can make.

More Than Two Decades of Stamping Excellence

Founded in 2003 and headquartered in Huangyan, Taizhou, Zhejiang Province, LINHAI DIAN MOULD CO., LTD (DIAN STAMPING) has built a reputation as one of China's most reliable stamping die manufacturers. With over 20 years of hands-on experience in the automotive tooling and metal stamping industry, the company has served globally recognized OEMs including KIA, BYD, Toyota, Honda, Suzuki, and Geely, and exports its products to more than 10 countries worldwide.

What sets DIAN STAMPING apart is not just its longevity, but its unwavering commitment to vertical integration. Unlike many competitors who outsource critical stages of production, DIAN STAMPING controls every step of the manufacturing process — from die design and precision machining to stamping, welding, and final assembly — all under one roof.

World-Class Manufacturing Infrastructure

DIAN STAMPING operates a modern facility covering approximately 50,000 m², with a dedicated die workshop of 4,000 m². The company is currently expanding into a new 35,000 m² facility featuring state-of-the-art press lines and advanced coating lines, further strengthening its production capabilities.

With a team of around 110 employees — including approximately 35 highly skilled die designers and technicians — the company achieves an impressive annual capacity of approximately 2,000 sets of medium and small stamping dies, with an annual die turnover of roughly RMB 50 million.

Comprehensive Stamping Die Solutions

DIAN STAMPING offers a full spectrum of stamping die types to meet diverse automotive manufacturing requirements:

• Progressive Dies — Multi-station dies that perform blanking, forming, punching, coining, and cutoff in a single pass, ideal for high-volume production of complex parts.
• Transfer Dies — Engineered for large and medium-sized complex parts requiring multiple forming operations across separate stations.
• Tandem Dies — Designed specifically for car body structural components made from high-tensile materials, ensuring dimensional accuracy under demanding conditions.

The company's design team leverages advanced CAD/CAM software including AutoCAD, SolidWorks, and CATIA to develop optimized die structures that maximize tool life and part quality. Typical delivery timelines are 30–40 days for steel stamping dies and approximately 70 days for casting stamping dies, depending on project complexity.

Precision Sheet Metal Parts and Fabrication

Beyond tooling, DIAN STAMPING is a full-service manufacturer of custom sheet metal parts for the automotive industry. The company's sheet metal fabrication capabilities include laser cutting, bending, welding, and powder coating — enabling them to deliver fully finished components ready for assembly.

Application areas span the entire vehicle structure, including body-in-white systems, door systems, seating systems, instrument panels, fuel-tank systems, exhaust systems, clutch systems, and chassis systems. The company also processes a wide range of materials including multiphase steel, aluminum, custom rolled and welded plate, and stainless steel, giving engineers maximum design flexibility.

Integrated Quality Assurance: Checking Fixtures and Welding Jigs

Quality assurance is built into every stage of DIAN STAMPING's production process. The company designs and manufactures high-precision checking fixtures that comply with GD&T standards, enabling rapid, repeatable dimensional verification of stamped components. These checking fixtures are delivered as matched sets with the corresponding press dies, ensuring that every part meets exact specifications before it moves to the next stage of production.

In addition, DIAN STAMPING provides custom welding jigs and assembly fixtures for robotic MIG welding, spot welding, and manual welding applications. These fixtures ensure accurate, repeatable positioning during assembly, reducing weld defects and improving overall production quality.

Quality Management and Certifications

DIAN STAMPING operates under a robust quality management system certified to ISO 9001, with manufacturing practices aligned to IATF 16949 standards for automotive production. The company emphasizes factory-direct pricing — as a genuine manufacturer rather than a trading company — ensuring customers receive competitive pricing without compromising on quality.

Why Global OEMs Trust DIAN STAMPING

In an industry where precision, consistency, and cost-efficiency are paramount, DIAN STAMPING delivers a compelling value proposition:

• End-to-End Capability — From die design to finished stamped parts, checking fixtures, and welding assemblies, DIAN STAMPING handles it all in-house, eliminating the coordination risks and cost premiums of fragmented supply chains.
• Proven Track Record — With customers including KIA, BYD, Toyota, Honda, Suzuki, and Geely, the company has demonstrated its ability to meet the rigorous quality and delivery standards of global automotive OEMs.
• Factory-Direct Pricing — As a direct manufacturer, DIAN STAMPING offers competitive pricing without intermediary markups, helping customers reduce their total cost of ownership.
• Scalable Production — With an annual capacity of 2,000 die sets and expanding facilities, the company can support both prototype runs and high-volume production programs.