A Vertically Integrated Manufacturing Partner Since 2003

Established in 2003 in Huangyan, Taizhou, Zhejiang Province, LINHAI DIAN MOULD CO., LTD (DIAN STAMPING) has grown into a comprehensive one-stop supplier of stamping dies, sheet metal parts, checking fixtures, and welding jigs. With over two decades of hands-on experience, the company has built a reputation for delivering engineering excellence to automotive OEMs and Tier-1 suppliers worldwide.

Unlike many trading companies that simply broker manufacturing services, DIAN STAMPING operates as a true factory. This means direct control over every stage of production — from die design and machining to tryout, stamping, and final assembly. For global buyers seeking consistent quality and factory-direct pricing, this vertical integration is a decisive advantage.

Scale and Capability That Inspire Confidence

DIAN STAMPING's manufacturing footprint spans approximately 50,000 m², including a dedicated die workshop of 4,000 m². The company employs around 110 skilled professionals, among them approximately 35 die designers and technicians who bring deep expertise in progressive die stamping, transfer dies, and tandem/multi-station dies.

Key production metrics speak for themselves:

• Annual die capacity: Approximately 2,000 sets of medium and small stamping dies
• Annual die turnover: Approximately RMB 50 million
• New facility expansion: A 35,000 m² facility featuring advanced press and coating lines
• Material capabilities: Multiphase steel, aluminum alloys, custom rolled and welded plate, and stainless steel

This scale enables DIAN STAMPING to handle high-volume production runs while maintaining the flexibility to accommodate custom tooling and prototype development.

Comprehensive Service: From Die Design to Finished Parts

What sets DIAN STAMPING apart is the breadth of its service offering. The company does not just manufacture dies — it also produces stamped sheet metal parts, precision checking fixtures, and custom welding jigs. This end-to-end capability means customers can source tooling and production from a single qualified partner, simplifying supply chain management and reducing project lead times.

For quality assurance, DIAN STAMPING provides high-precision checking fixture solutions that follow GD&T standards. These fixtures enable rapid, repeatable inspection of stamped components, eliminating measurement variability and ensuring that every part meets OEM specifications before it moves to the assembly line.

Proven Track Record with Global Automotive Brands

DIAN STAMPING's customer roster includes some of the world's most recognizable automotive names — KIA, BYD, Toyota, Honda, Suzuki, and Geely. The company exports to more than 10 countries, demonstrating its ability to meet the rigorous quality, delivery, and documentation standards required by international OEMs.

Customization is a core strength. DIAN STAMPING can work from 2D drawings, 3D CAD data, or physical samples to develop tooling that precisely matches the customer's part geometry. Prototype services are also available, allowing OEMs to validate designs before committing to full production tooling.

Quality Systems and Delivery Reliability

The company operates under an ISO 9001 quality management system and follows IATF 16949-oriented automotive manufacturing and quality practices. This dual focus ensures that both the tooling and the stamped parts comply with the stringent requirements of the automotive industry.

Delivery performance is another area where DIAN STAMPING stands out. Typical lead times are 30–40 days for steel stamping dies and approximately 70 days for casting stamping dies, depending on project complexity. These timelines are supported by the company's in-house machining, tryout, and inspection capabilities, which eliminate the delays often associated with outsourced operations.

Why OEMs and Tier Suppliers Choose DIAN STAMPING

In an industry where precision, reliability, and cost-efficiency are non-negotiable, DIAN STAMPING delivers on all fronts. The combination of a large modern facility, an experienced engineering team, full vertical integration, and a proven international customer base makes it a compelling choice for any automotive procurement professional seeking a long-term stamping partner.

Whether you need progressive dies for high-volume structural components, checking fixtures for quality control, or complete sheet metal parts ready for assembly, DIAN STAMPING has the capabilities and track record to deliver.