Two Decades of Stamping Excellence

Established in 2003 in Huangyan, Taizhou, Zhejiang Province, DIAN STAMPING has built a reputation over more than 20 years as a trusted partner in the automotive stamping industry. The company's modern facility spans approximately 50,000 m², with a dedicated die workshop of 4,000 m² and a planned 35,000 m² expansion featuring new press lines and coating capabilities. With around 110 employees — including 35 die designers and technicians — and an annual capacity of 2,000 sets of medium and small stamping dies, DIAN STAMPING delivers both the scale and the expertise that global OEMs demand.

Comprehensive Die Engineering: Progressive Die Stamping and Beyond

At the core of DIAN STAMPING's offering is its full-spectrum die design and manufacturing capability. The company specializes in progressive die stamping, transfer dies, and tandem/multi-station dies for complex automotive parts. Whether the application calls for body-in-white panels, door system components, seating structures, instrument panel supports, or chassis and exhaust system parts, DIAN's engineering team has the technical depth to deliver.

The company processes a wide range of materials including multiphase steel (HSS and AHSS), aluminum alloys, custom rolled and welded plate, and stainless steel. This versatility means that DIAN can support everything from lightweight EV battery enclosures to high-strength structural reinforcements — all produced with tight tolerances and consistent repeatability.

As a factory-direct die manufacturer, DIAN STAMPING eliminates the middleman, offering competitive pricing without compromising on quality. Customers can submit 2D drawings, 3D CAD data, or physical samples for custom die design and prototyping, with typical lead times of 30–40 days for steel stamping dies and approximately 70 days for cast stamping dies.

End-to-End Stamped Production: From Tooling to Finished Parts

What truly differentiates DIAN STAMPING from many die-only suppliers is its complete vertical integration. The company does not just build dies — it also produces stamped sheet metal parts, welding assemblies, and finished components in-house. This capability covers the entire production chain: tool and die manufacturing, stamping production, welding and assembly, and quality inspection using precision checking fixtures.

For automotive OEMs, this means a single point of accountability. Instead of coordinating between a die maker, a stamper, a welding shop, and a quality lab, DIAN STAMPING manages the entire process from die design to delivered component. This integration reduces logistics complexity, shortens program lead times, and ensures that the tooling and the production process are optimized together from day one.

The company's product range includes automotive stamping dies for body-in-white, door systems, seating systems, instrument panels, fuel-tank systems, exhaust systems, clutch systems, and chassis systems — as well as household appliance stamping parts for the white-goods industry.

Precision Quality Assurance with Checking Fixture Inspection

Quality control is embedded in every stage of DIAN STAMPING's production process. The company's quality-management system is ISO 9001 certified, and its manufacturing practices follow IATF 16949-oriented automotive standards. A key part of the quality assurance workflow is the use of precision checking fixture inspection — purpose-built tools that verify whether each stamped workpiece conforms to the specified dimensions.

Checking fixtures are essential in automotive production because they allow rapid, repeatable inspection of complex geometries that would be difficult or time-consuming to measure with standard instruments. By designing and building checking fixtures alongside the stamping dies, DIAN STAMPING ensures that every part can be verified against GD&T requirements from the very first production run. This integrated approach eliminates measurement inconsistencies and accelerates PPAP (Production Part Approval Process) submissions.

Welding Jigs and Assembly Solutions

Beyond stamping dies and sheet metal parts, DIAN STAMPING offers custom welding jigs and fixtures designed for accurate, repeatable production welding and assembly. Whether the requirement is for spot welding, MIG welding, or robotic welding cells, the company's jig design team builds fixtures that hold components in precise alignment, reduce rework, and improve throughput.

These welding jigs are designed and manufactured in-house, ensuring compatibility with the stamped parts produced on the same factory floor. This end-to-end coordination eliminates the tolerance stack-up issues that often arise when stamping and welding are handled by separate suppliers.

Trusted by Global Automotive Brands

DIAN STAMPING's customer roster includes nameplates such as KIA, BYD, Toyota, Honda, Suzuki, and Geely, with exports reaching more than 10 countries worldwide. This track record demonstrates the company's ability to meet the stringent quality, delivery, and cost targets that global automotive OEMs require.

The company's positioning as a factory — not a trading company — means that customers benefit from direct pricing, transparent communication, and full visibility into the manufacturing process. Whether you are sourcing automotive stamping dies for a new vehicle program or need high-volume stamped components for an existing production line, DIAN STAMPING offers the reliability, capability, and cost-efficiency of a vertically integrated Chinese manufacturer.