When sourcing automotive stamping components, the traditional approach requires juggling multiple suppliers: one for the tooling, another for the stamped parts, a third for inspection fixtures, and yet another for welding and assembly. Each handoff introduces risk — dimensional drift, timeline delays, and communication gaps. DIAN Stamping (LINHAI DIAN MOULD CO., LTD) eliminates this complexity by offering a fully integrated manufacturing ecosystem, from precision die engineering to finished assembly-ready components.

Established in 2003 in Taizhou, Zhejiang Province, DIAN Stamping has grown into a 50,000 m² modern facility with a dedicated die workshop of 4,000 m². The company employs approximately 110 people, including 35 experienced die designers and technicians, and maintains an annual capacity of roughly 2,000 sets of medium and small stamping dies. With an annual die turnover of approximately RMB 50 million, DIAN serves automotive OEMs including KIA, BYD, Toyota, Honda, Suzuki, and Geely, and exports to more than 10 countries worldwide.

Comprehensive Stamping Die Capabilities

As an experienced stamping die manufacturer, DIAN designs and builds progressive dies, transfer dies, and tandem/multi-station dies for complex automotive and industrial parts. The engineering team works with CAD, SolidWorks, and CATIA to develop tooling from 2D drawings, 3D data, or physical samples. Materials processed include multiphase steel, aluminum alloys, custom rolled and welded plate, and stainless steel.

Die applications span the full vehicle architecture: body-in-white panels (side frames, rear outer panels, spare tire wells), door systems (hinge reinforcement plates, water-cut panels), seating systems (B-pillars, beams, seat basins, chassis seats), instrument panels, fuel-tank components, exhaust system heat shields, and chassis system parts. Typical delivery stands at 30–40 days for steel stamping dies and approximately 70 days for casting stamping dies, depending on project complexity.

Precision Sheet Metal Parts & Fabrication

Beyond tooling, DIAN provides full-scale sheet metal fabrication services, delivering production-ready stamped components for automotive, household appliance, and industrial applications. The company's capabilities include laser cutting, bending, forming, deep drawing, powder coating, and welding assembly. Whether you need custom sheet metal stamping parts for an automotive body application or precision brackets and panels for household appliances, DIAN delivers consistent quality and tight tolerances.

Secondary operations include deburring, hemming, flanging, and spot welding, ensuring that every stamped part is assembly-ready upon delivery. This integrated approach eliminates the cost and complexity of sending parts to separate finishing suppliers.

Quality Assurance with Precision Checking Fixtures

Stamped parts and welded assemblies are only as good as the measurement system that validates them. DIAN designs and manufactures high-precision checking fixture solutions that enable rapid, repeatable inspection of complex geometries. A checking fixture confirms whether a manufactured workpiece conforms to specified dimensions within seconds — simply by placing the part onto the fixture. This eliminates the individual measurement errors inherent in manual tools like vernier calipers and micrometers.

Press dies and checking fixtures go hand in hand. DIAN supplies both as a matched set, ensuring that the inspection tooling references the same datum and GD&T scheme as the production dies. This coordinated approach dramatically reduces dimensional disputes and speeds up PPAP (Production Part Approval Process) submissions for automotive OEMs.

Welding Jigs for Flawless Assembly

DIAN also provides custom welding jigs designed to ensure accurate, repeatable positioning during welding operations. Whether the application is spot welding, TIG welding, MIG welding, or robotic welding, DIAN's welding jigs maintain consistent part alignment, reduce rework, and improve throughput. The company offers a wide range of jig configurations including chassis welding jigs, frame welding jigs, exhaust welding jigs, axle welding jigs, and rotating welding jigs.

By combining welding jigs with in-house welding and assembly capabilities, DIAN can deliver complete welded sub-assemblies that are ready for final integration — a true one-stop solution for automotive Tier 1 suppliers and OEMs.

Quality Certifications and Global Reach

DIAN operates under a quality management system aligned with ISO 9001 and IATF 16949-oriented automotive manufacturing practices. The company holds TUV certification and is recognized as a National High-Tech Enterprise and a Zhejiang Province Science and Technology SME. These credentials reflect a commitment to continuous improvement, process control, and customer satisfaction.

As a direct factory — not a trading company — DIAN offers competitive pricing without compromising on quality. The company provides free metal samples (with freight paid by the customer), prototype services, and OEM/ODM customization. Custom solutions are available from 2D drawings, 3D data, or physical samples.

Why DIAN Stamping?