When automotive OEMs and Tier-1 suppliers search for a reliable partner capable of delivering high-quality automotive stamping dies, precision sheet metal parts, and inspection fixtures under one roof, the choice often comes down to experience, scale, and proven quality systems. With over two decades of hands-on manufacturing expertise, LINHAI DIAN MOULD CO., LTD (Dian Stamping) has established itself as a trusted one-stop supplier for the global automotive industry. Based in Taizhou, Zhejiang, China, the company serves well-known brands including KIA, BYD, Toyota, Honda, Suzuki, and Geely, and exports to more than 10 countries worldwide.

Company Overview: More Than 20 Years of Die and Stamping Excellence

Founded in 2003, Dian Stamping has grown from a specialized tooling workshop into a full-scale manufacturing facility covering approximately 50,000 m². The dedicated die workshop alone spans 4,000 m² and houses a skilled team of around 110 employees, including approximately 35 die designers and technicians. This combination of human capital and physical infrastructure allows the company to achieve an annual capacity of about 2,000 sets of medium and small stamping dies, with a reported annual die turnover of approximately RMB 50 million.

Unlike many trading companies that simply broker orders, Dian Stamping operates as a factory-direct manufacturer. This means customers benefit from direct pricing, full production control, and end-to-end accountability — from die design and prototyping through mass production and quality assurance.

Comprehensive Product and Service Portfolio

Dian Stamping offers four integrated product lines that cover the complete manufacturing cycle for automotive metal components:

• Stamping Dies — Progressive, transfer, and tandem dies for large and medium-sized complex parts, including body-in-white, door systems, seating systems, instrument panels, fuel-tank systems, exhaust systems, and chassis components.
• Sheet Metal Parts — Custom metal stampings, welding assemblies, and sheet-metal fabrication for both automotive and household appliance applications, with capabilities in progressive die stamping, fine blanking, and laser-assisted cutting.
• Checking Fixture — High-precision, GD&T-oriented inspection fixtures designed to verify dimensional accuracy of stamped components and welded assemblies, eliminating measurement subjectivity and individual inspector variation.
• Welding Jig — Custom welding fixtures and supporting services for accurate, repeatable positioning during arc welding, spot welding, and robotic welding operations, ensuring consistent assembly quality.

The company processes a wide range of materials including multiphase steel, aluminum alloys, custom rolled and welded plate, and stainless steel, making it suitable for diverse applications from structural body panels to intricate chassis components.

Key Capabilities at a Glance

A planned 35,000 m² facility expansion featuring new press lines and coating lines will further increase capacity and capability, reinforcing Dian Stamping's commitment to continuous investment in manufacturing excellence.

Quality Management and Certifications

Quality assurance is embedded in every stage of production. Dian Stamping operates under an ISO 9001 quality management system and follows IATF 16949-oriented automotive manufacturing practices. From in-line inspections during stamping to final dimensional verification using coordinate measuring machines (CMM) and checking fixture validation, every part is subject to rigorous quality control protocols.

The company also offers free metal samples upon request (with freight paid by the customer), allowing potential clients to evaluate material quality and workmanship before committing to full production runs.

Global Customer Base and OEM Partnerships

Dian Stamping's reputation for reliability and precision has earned the trust of major automotive OEMs. The company's customer portfolio includes:

KIA BYD Toyota Honda Suzuki Geely

With exports reaching more than 10 countries, Dian Stamping has demonstrated its ability to meet international quality standards, navigate complex logistics, and maintain reliable lead times for overseas customers. Typical delivery is 30–40 days for steel stamping dies and approximately 70 days for casting stamping dies, subject to project scope and complexity.

Customization and Engineering Support

One of Dian Stamping's core strengths is its ability to deliver fully customized solutions. Customers can submit requirements in various formats — 2D drawings, 3D CAD data, or physical samples — and the in-house engineering team will develop the corresponding tooling and production process. Prototype services are available for new product development, allowing design validation before mass production.

As experienced stamping die manufacturers, the team specializes in progressive die design, transfer die engineering, and compound die tooling for high-volume metal forming, ensuring tight tolerances, long die life, and cost-efficient production output.

Why Choose Dian Stamping as Your Manufacturing Partner?

In a competitive global market, automotive suppliers need partners who combine technical expertise with manufacturing scale, quality systems, and reliable delivery. Dian Stamping delivers on all fronts:

• Factory-direct pricing — No middlemen, no markups, just competitive manufacturer pricing.
• End-to-end capability — From die design and prototyping to mass production, inspection, and welding assembly.
• Proven quality systems — ISO 9001 certified with IATF 16949-oriented practices.
• Experienced engineering team — 35 die designers and technicians with deep automotive tooling expertise.
• Global delivery track record — Serving major OEMs and exporting to 10+ countries.
• Continuous investment — New 35,000 m² facility with advanced press and coating lines underway.