For more than two decades, LINHAI DIAN MOULD CO., LTD — operating as precision die and stamping specialist — has been engineering and manufacturing automotive stamping dies, stamped sheet-metal parts, checking fixtures, and welding jigs for customers across the globe. Headquartered in Huangyan, Taizhou, Zhejiang Province, the company has grown from a local tooling workshop into a trusted partner of major automotive brands including KIA, BYD, Toyota, Honda, Suzuki, and Geely, with exports reaching more than 10 countries.

A Factory Built for Scale and Precision

DIAN STAMPING operates from a modern facility covering approximately 50,000 m², with a dedicated die workshop of 4,000 m² and a planned 35,000 m² expansion featuring new press and coating lines. The company employs around 110 skilled professionals, including approximately 35 die designers and technicians. This infrastructure supports an annual capacity of about 2,000 sets of medium and small stamping dies, with reported annual die turnover of approximately RMB 50 million.

Unlike many trading companies in the industry, DIAN STAMPING is a factory-first operation. This means customers benefit from direct pricing, full process control, and shorter communication chains — from die design and tryout to mass production and delivery.

Comprehensive Die and Stamping Capabilities

DIAN STAMPING's core expertise lies in the design and manufacture of automotive stamping dies, covering three major die types:

• Progressive dies — High-efficiency multi-station tooling for complex, high-volume parts with consistent dimensional accuracy across every stroke.
• Transfer dies — Ideal for large and medium-sized panels that require multiple forming operations, with automated part transfer between stations.
• Tandem / multi-station dies — Flexible configurations for parts that benefit from sequential forming in separate press stations.

The company processes a wide range of materials including multiphase steel, aluminum alloys, custom rolled and welded plate, and stainless steel — meeting the diverse material requirements of modern automotive manufacturing.

Beyond Dies: Stamped Parts, Fixtures, and Jigs

DIAN STAMPING's product scope extends well beyond tooling. The company is a full-service provider of stamped sheet-metal parts, covering applications from body-in-white and door systems to seating systems, instrument panels, fuel-tank systems, and chassis components. Secondary operations such as welding and assembly are handled in-house, ensuring that customers receive ready-to-use components rather than raw stampings.

Quality verification is equally critical. DIAN STAMPING supplies checking fixture solutions — GD&T-oriented inspection tools that enable rapid, repeatable dimensional verification of stamped parts and welded assemblies. These fixtures eliminate measurement subjectivity and are essential for high-volume production environments where every part must conform to specification.

For welding and assembly operations, the company provides custom welding jig solutions designed to ensure accurate positioning, repeatable welds, and consistent assembly quality across production runs.

Quality Management and Industry Standards

DIAN STAMPING operates its quality-management system under ISO 9001 certification, with manufacturing practices aligned to IATF 16949 automotive standards. This dual focus on systematic quality management and automotive-specific requirements ensures that every die and stamped part meets the stringent expectations of OEMs and Tier-1 suppliers.

Customization is available from 2D drawings, 3D data, or physical samples. Prototype services are offered for new product development programs. Typical delivery is 30-40 days for steel stamping dies and approximately 70 days for casting stamping dies, depending on project complexity.

Why Global Automotive Buyers Choose DIAN STAMPING

Several factors distinguish DIAN STAMPING from other stamping die manufacturers in China:

• Two decades of experience — Established in 2003, with a track record of serving global OEMs and Tier suppliers.
• End-to-end manufacturing — Die design, die making, stamping, welding, assembly, and inspection under one roof reduces lead times and coordination overhead.
• Factory-direct pricing — Eliminates intermediary margins, offering competitive cost structures for long-term supply agreements.
• Broad application coverage — From body-in-white and closures to seating, exhaust, and chassis systems.
• Multi-material processing — Expertise with high-strength steel, aluminum, and advanced alloys supports lightweighting and EV programs.
• Export-ready logistics — Serving customers in more than 10 countries with reliable shipping and responsive communication.

Supporting the Future of Automotive Manufacturing

As the automotive industry transitions toward electric vehicles, lightweight structures, and higher safety standards, the demand for precision tooling and high-quality stamped parts continues to grow. DIAN STAMPING's investment in new facilities, expanded press capacity, and advanced coating lines positions the company to meet these evolving requirements.

Whether you are sourcing progressive dies for a high-volume production program, need prototype sheet metal parts for a new vehicle launch, or require a complete checking fixture and welding jig package for a new assembly line, DIAN STAMPING offers the engineering depth, manufacturing capacity, and quality assurance to deliver.