A Legacy of Precision Since 2003

Founded in 2003 and headquartered in Huangyan, Taizhou, Zhejiang Province, LINHAI DIAN MOULD CO., LTD (DIAN STAMPING) has spent over two decades perfecting the art of metal stamping. What began as a specialized die workshop has grown into a comprehensive manufacturing facility spanning 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.

Today, DIAN STAMPING employs around 110 skilled professionals, including more than 35 die designers and technicians, and produces approximately 2,000 sets of medium and small stamping dies annually. The company serves a roster of global automotive OEMs including KIA, BYD, Toyota, Honda, Suzuki, and Geely, with exports reaching more than 10 countries worldwide.

Comprehensive Stamping Capabilities Under One Roof

Unlike many stamping suppliers that specialize in only one aspect of production, DIAN STAMPING offers a truly integrated approach. The company's end-to-end capabilities cover tool and die manufacturing, stamping production, welding, assembly, and quality inspection — all within a single facility. This vertical integration translates into shorter lead times, better quality control, and lower costs for customers.

At the core of DIAN STAMPING's manufacturing capabilities is its expertise in progressive die stamping. The company designs and builds progressive dies, transfer dies, and tandem/multi-station dies for complex automotive parts, processing a wide range of materials including multiphase steel, aluminum, custom rolled and welded plate, and stainless steel.

Beyond Dies: A Full-Service Manufacturing Partner

DIAN STAMPING's service portfolio extends far beyond die manufacturing. The company provides a complete suite of downstream services that make it a true one-stop partner for automotive OEMs and Tier 1 suppliers.

Sheet Metal Parts

From prototype to high-volume production, DIAN STAMPING manufactures custom sheet metal parts for automotive and household appliance applications. The company's stamping, laser cutting, bending, and welding capabilities ensure that every part meets OEM specifications for dimensional accuracy and structural integrity.

Checking Fixtures

Quality assurance is a cornerstone of automotive manufacturing. DIAN STAMPING designs and builds high-precision checking fixture solutions based on GD&T (Geometric Dimensioning and Tolerancing) standards. These fixtures enable rapid, repeatable inspection of stamped components and welded assemblies, ensuring that every part conforms to design specifications before it reaches the assembly line.

Welding Jigs & Assembly

To support accurate, repeatable production, DIAN STAMPING also provides custom welding jigs and assembly fixtures. The company's welding services include spot welding, MIG welding, and TIG welding, with jigs designed to maintain precise positioning throughout the welding process.

Quality Management: Built to Automotive Standards

DIAN STAMPING operates under an ISO 9001-certified quality management system, with manufacturing practices aligned to IATF 16949 standards — the global benchmark for automotive quality. The company's commitment to quality is reflected in its rigorous inspection protocols, which include in-line inspections, CMM (Coordinate Measuring Machine) verification, and comprehensive checking fixture validation.

For customers who need to verify product quality before shipment, DIAN STAMPING offers free metal samples (with freight paid by the customer) and welcomes on-site factory audits. This transparency has helped the company build long-term relationships with some of the world's most demanding automotive manufacturers.

Why Global OEMs Choose DIAN STAMPING

In a competitive global market, DIAN STAMPING differentiates itself through several key advantages:

• Factory-Direct Pricing: As a manufacturer, not a trading company, DIAN STAMPING offers competitive pricing without intermediary markups, saving customers 20–30% compared to Western suppliers.
• Customization Flexibility: Parts can be developed from 2D drawings, 3D data (CAD/STEP files), or physical samples, with prototype services available for new vehicle programs.
• Proven OEM Track Record: With more than a decade of supplying global brands like KIA, BYD, Toyota, and Geely, DIAN STAMPING has demonstrated the reliability and consistency that automotive OEMs require.
• End-to-End Service: From die design and tryout to stamping, welding, assembly, and inspection, DIAN STAMPING manages the entire production chain, reducing coordination overhead and accelerating project timelines.
• English-Speaking Support: The company's international sales team communicates directly with global customers, ensuring clear project communication from quotation to delivery.

Driving the Future of Automotive Manufacturing

As the automotive industry transitions toward electric vehicles, lightweight materials, and smarter manufacturing, the demand for precision stamping solutions continues to grow. DIAN STAMPING's investment in new facilities, advanced press lines, and expanded coating capabilities positions the company to meet these evolving needs.

With a reported annual die turnover of approximately RMB 50 million and a growing international customer base, DIAN STAMPING is not just a die manufacturer — it is a strategic partner for automotive OEMs seeking reliable, cost-effective, and high-quality stamping solutions.