When sourcing critical tooling and stamped components for automotive production, manufacturers face a common challenge: finding a partner that combines precision engineering, competitive pricing, and reliable delivery. For over two decades, LINHAI DIAN MOULD CO., LTD (Dian Stamping) has served as that partner for global automotive OEMs and Tier 1 suppliers. Headquartered in Zhejiang, China, the company has earned its reputation as a one-stop manufacturing partner for automotive stamping dies, sheet metal parts, checking fixtures, and welding jigs.

A Manufacturing Facility Built for Scale and Precision

Dian Stamping operates a modern facility covering approximately 50,000 m², with a dedicated die workshop of 4,000 m². The company employs around 110 skilled professionals, including 35 die designers and technicians. With an annual production capacity of approximately 2,000 sets of medium and small stamping dies and an annual die turnover of approximately RMB 50 million, Dian Stamping has the scale to support both prototyping and mass production.

A planned new 35,000 m² facility featuring advanced press lines and coating lines will further expand capacity, reflecting the company\'s long-term commitment to the industry. This expansion ensures that Dian Stamping remains well-equipped to meet growing demand from both existing and new clients.

Comprehensive Product and Service Capabilities

Unlike many stamping die manufacturers that focus on a single process, Dian Stamping offers an end-to-end solution across four core product categories:

• Stamping Dies — Progressive dies, transfer dies, and tandem/multi-station dies for complex automotive parts. These include body-in-white components, door system parts, seating system parts, and chassis components.
• Sheet Metal Parts — Custom metal stamping and fabrication for automotive and household appliance applications, including welding assemblies and laser-cut components.
• Checking Fixtures — High-precision, GD&T-oriented inspection fixtures that ensure dimensional accuracy of stamped components and assemblies.
• Welding Jigs — Custom welding fixtures designed for accurate, repeatable positioning and assembly in automotive production lines.

The company\'s application coverage spans body-in-white, door systems, seating systems, instrument panels, fuel-tank systems, exhaust systems, clutch systems, and chassis systems. Material capabilities include multiphase steel, aluminum, custom rolled and welded plate, and stainless steel.

Quality Systems and Manufacturing Standards

Dian Stamping operates under a quality management system aligned with ISO 9001 and follows IATF 16949-oriented automotive manufacturing practices. The company positions itself as a factory-direct manufacturer — not a trading company — which means customers benefit from direct pricing, faster communication, and tighter quality control throughout the production process.

Customization is a core strength. The engineering team can work from 2D drawings, 3D data, or physical samples to develop tooling and production solutions. Prototype services are available for new product development, and free metal samples can be provided for evaluation (freight paid by the customer).

Global Customer Base and Track Record

Dian Stamping\'s client list includes major automotive brands such as KIA, BYD, Toyota, Honda, Suzuki, and Geely. The company exports to more than 10 countries worldwide, serving not only automotive OEMs but also Tier suppliers and industrial customers that require custom tooling, high-volume stamped parts, and inspection or welding fixtures.

Typical delivery timelines are 30–40 days for steel stamping dies and approximately 70 days for casting stamping dies, subject to project complexity. This reliable lead time, combined with factory-direct pricing, has made Dian Stamping a preferred sheet metal parts supplier for international buyers seeking cost-effective solutions without compromising on quality.

Why Vertical Integration Matters

One of Dian Stamping\'s key differentiators is its vertically integrated manufacturing model. Tool and die manufacturing, stamping, welding, assembly, checking fixture production, and welding jig fabrication all happen under one roof. This integration eliminates the coordination delays and quality inconsistencies that often arise when multiple vendors are involved in a single project.

For automotive buyers sourcing complex parts, this means faster time-to-market, simplified supply chain management, and a single point of accountability for quality and delivery. In an industry where precision and reliability are non-negotiable, vertical integration provides a clear advantage.

Conclusion: A Partner for Long-Term Growth

With over 20 years of industry experience, a 50,000 m² facility, and a proven track record serving global automotive brands, Dian Stamping offers the capabilities, quality systems, and manufacturing scale that today\'s automotive supply chain demands. Whether you need precision stamping dies, high-volume sheet metal parts, checking fixtures, or welding jigs, Dian Stamping delivers factory-direct value with end-to-end accountability.