Two Decades of Stamping Excellence

Founded in 2003 in Huangyan, Taizhou, Zhejiang Province, Dian Stamping has grown from a specialized tooling workshop into a comprehensive manufacturing facility spanning approximately 50,000 m². With a dedicated die workshop of 4,000 m² and a team of around 110 employees — including 35 experienced die designers and technicians — the company delivers an annual capacity of roughly 2,000 sets of medium and small stamping dies.

This scale is not just about volume. It reflects a maturation of processes, quality systems, and workforce expertise that has earned Dian Stamping a place in the supply chains of global automotive brands including KIA, BYD, Toyota, Honda, Suzuki, and Geely, with exports reaching more than 10 countries.

A Comprehensive Service Portfolio

What sets Dian Stamping apart is its ability to offer a truly integrated service model. The company's capabilities span the entire metal forming value chain — from tool design and die manufacturing through stamping, welding, and assembly — all under one roof. This vertical integration reduces lead times, eliminates coordination overhead, and gives OEMs a single point of accountability.

Stamping Dies

At the core of Dian's offering is its progressive die stamping capability, complemented by transfer dies and tandem/multi-station dies. These tools are engineered for complex, medium-to-large automotive parts across body-in-white, door systems, seating systems, instrument panels, and chassis applications. The company processes a wide range of materials including multiphase steel, aluminum, custom rolled and welded plate, and stainless steel.

Sheet Metal Parts & Assemblies

From automotive body panels to household appliance components, Dian Stamping produces high-volume stamped parts with tight tolerances. The company's sheet metal fabrication capabilities include laser cutting, bending, forming, welding, and surface coating, supporting both prototyping and mass production runs.

Checking Fixtures & Welding Jigs

Quality assurance is a non-negotiable pillar of automotive manufacturing. Dian Stamping designs and builds high-precision checking fixture solutions for dimensional verification of stamped parts and assemblies, following GD&T standards. These fixtures enable rapid, repeatable inspection of complex geometries that would be difficult or time-consuming to measure with conventional tools. Complementing this, the company's custom welding jigs ensure accurate positioning and repeatable welding results for automotive sub-assemblies.

Factory-Direct Value Without Compromise

Dian Stamping positions itself as a factory, not a trading company — a distinction that matters greatly in the stamping industry. By controlling every stage of production from die design to final assembly, the company passes on genuine cost savings to its customers. Typical delivery times are 30–40 days for steel stamping dies and approximately 70 days for casting dies, though these timelines are tailored to each project's specific requirements.

Customization is a standard offering. Dian works from 2D drawings, 3D CAD data, or physical samples to develop tooling solutions that match exact part geometries. The company's IATF 16949-oriented quality management system and ISO 9001 certification provide the framework for consistent, auditable quality across all production runs.

Application Expertise Across Vehicle Systems

Dian Stamping's tooling and stamped parts are used across a wide range of automotive applications:

• Body-in-White: Side frames, spare tire wells, rear outer panels, and A-pillar reinforcement plates
• Door Systems: Hinge reinforcement plates, water-cut panels, and guide rails
• Seating Systems: Seat basins, support beams, B-pillar liners, and battery cases
• Exhaust & Chassis: Heat shields, swing arms, and transverse control arm assemblies
• Instrument Panels: Dashboard supports and cross-car beams

This breadth of application experience means Dian's engineering team understands the distinct tolerance, material, and safety requirements of each vehicle subsystem — knowledge that translates into better die design and fewer trial iterations.

The Dian Stamping Difference

In a competitive landscape where many stamping suppliers offer only isolated services, Dian Stamping's vertically integrated model delivers measurable advantages:

• Single-Source Accountability: From die design to stamped parts to checking fixtures, one partner manages the entire workflow.
• Cost Efficiency: Factory-direct pricing eliminates middleman markups on tooling and production.
• Faster Time-to-Market: In-house die tryout and process optimization shorten the typical production ramp-up cycle.
• Consistent Quality: ISO 9001-certified processes and IATF 16949-oriented practices ensure repeatable, auditable quality.
• Material Versatility: Expertise in high-strength steel, aluminum, multiphase alloys, and stainless steel broadens design possibilities.