Finding a stamping partner who can handle every stage of production — from die design to stamped parts, inspection fixtures, and welding assemblies — is rare in today's global supply chain. Most shops specialize in one piece of the puzzle. DIAN STAMPING has built its reputation by doing all of it.

A Manufacturing Partner, Not Just a Supplier

Established in 2003 in Huangyan, Taizhou, Zhejiang Province, DIAN STAMPING (LINHAI DIAN MOULD CO., LTD) has spent over two decades serving global automotive OEMs. The company operates a modern facility spanning approximately 50,000 m², including a dedicated die workshop of about 4,000 m². With around 110 employees — including 35 experienced die designers and technicians — the company produces an annual capacity of roughly 2,000 sets of medium and small stamping dies. Its annual die turnover is reported at approximately RMB 50 million.

What sets DIAN apart is its full-spectrum capability. The company offers progressive die stamping, transfer dies, tandem dies, sheet metal parts, checking fixtures, and welding jigs — all under one roof. This integrated model eliminates the coordination headaches that plague multi-supplier sourcing and ensures consistent quality from tooling to final assembly.

What DIAN STAMPING Offers

Stamping Dies — Precision Tooling for Complex Parts

DIAN designs and manufactures automotive stamping dies for body-in-white, door systems, seating systems, instrument panels, fuel-tank systems, exhaust systems, clutch systems, and chassis systems. The product range includes progressive dies, transfer dies, and tandem dies capable of handling multiphase steel, aluminum, custom rolled and welded plate, and stainless steel. Typical delivery for steel stamping dies is 30–40 days, while casting dies take approximately 70 days — timelines that compete favorably with global benchmarks.

Sheet Metal Parts — From Prototype to Mass Production

Beyond tooling, DIAN produces stamped sheet metal parts for both automotive and household appliance industries. From brackets, panels, and hinges to complex structural components, the company's stamping capabilities support a wide range of materials including stainless steel, aluminum, cold-rolled steel, and galvanized steel. Secondary operations such as deburring, bending, welding, and coating are handled in-house, reducing lead times and ensuring fit-for-purpose delivery.

Checking Fixtures — Precision Inspection Made Simple

Press dies and checking fixtures go hand in hand. DIAN manufactures high-precision, GD&T-oriented inspection fixtures that allow manufacturers to quickly verify dimensional accuracy of stamped components and assemblies. These fixtures eliminate individual measurement errors and speed up quality assurance on the production floor.

Welding Jigs — Accuracy in Assembly

DIAN's custom welding jigs and fixtures are designed for accurate, repeatable positioning during welding and assembly operations. Supporting both manual and automated welding processes, these jigs help automotive manufacturers achieve consistent weld quality and dimensional stability across production runs.

Why Automotive OEMs Choose DIAN STAMPING

DIAN STAMPING counts KIA, BYD, Toyota, Honda, Suzuki, and Geely among its customers — a testament to the quality standards the company maintains. Its quality management system is ISO 9001 certified, and the company follows IATF 16949-oriented manufacturing practices, ensuring that every component meets the rigorous demands of automotive production.

As a direct factory — not a trading company — DIAN offers factory-direct pricing, customization from 2D drawings, 3D data, or physical samples, and prototype services to support new vehicle programs. A planned 35,000 m² expansion featuring new press and coating lines signals the company's commitment to growing alongside its customers.

The DIAN Difference: One-Stop, No Compromise

For procurement managers and engineers evaluating stamping die manufacturers, the decision often comes down to a trade-off: cost versus quality, speed versus reliability. DIAN STAMPING challenges this trade-off by combining factory-direct economics with the engineering depth and quality systems that global automotive OEMs demand.

Whether you need a single progressive die for a new bracket design or a full production package including tooling, stamped parts, checking fixtures, and welding jigs, DIAN delivers a unified solution that reduces supply chain complexity, shortens time to market, and lowers total cost of ownership.

Materials and Capabilities

DIAN's manufacturing capabilities span a broad range of materials and processes:

• Multiphase steel, aluminum alloys, stainless steel, custom rolled and welded plate
• Progressive dies, transfer dies, tandem/multi-station dies
• Tool and die manufacturing, stamping, welding, assembly
• Checking fixtures and welding jigs for quality assurance and production
• Customization from 2D drawings, 3D data, or physical samples
• Free metal samples available (freight paid by customer)