In the fast-paced world of automotive manufacturing, finding a reliable partner who can deliver precision tooling, high-quality stamped components, and cost-effective production is critical to staying competitive. Whether you are an OEM launching a new vehicle platform or a Tier-1 supplier scaling up production, the choice of your stamping die manufacturers directly impacts your product quality, lead times, and bottom line.

Enter Dian Stamping — a China-based manufacturer with over 20 years of dedicated experience in automotive stamping dies, sheet metal parts, checking fixtures, and welding jigs. With a modern 50,000 m² facility, a team of 110 skilled professionals, and an annual capacity of 2,000 sets of medium and small stamping dies, Dian Stamping has established itself as a one-stop, cost-competitive manufacturing partner for the global automotive industry.

Who We Are: A Legacy of Precision Since 2003

Established in 2003 and headquartered in Huangyan, Taizhou, Zhejiang Province — a region renowned for its mold-making expertise — Dian Stamping (LINHAI DIAN MOULD CO., LTD) has grown from a specialized die workshop into a full-service metal stamping and tooling enterprise. The company operates as a direct factory, not a trading company, ensuring that every customer benefits from factory-direct pricing, hands-on engineering support, and complete quality control.

The company's core business revolves around four integrated service lines: stamping dies (progressive, transfer, and tandem dies), sheet metal parts, checking fixtures, and welding jigs. This vertically integrated approach means that Dian Stamping can manage your project from die design and fabrication through to part stamping, inspection, and welded assembly — all under one roof.

Manufacturing Scale and Capabilities

Dian Stamping's manufacturing infrastructure is built to handle the demands of modern automotive production. The facility spans approximately 50,000 m², with a dedicated die workshop of 4,000 m² equipped with advanced machining centers, press lines, and inspection equipment. A planned 35,000 m² expansion will add new press lines and coating capabilities, further strengthening the company's production capacity.

The company's die-making expertise covers a wide spectrum of tooling types, including progressive dies for high-volume production, transfer dies for complex multi-stage forming, and tandem dies for large and medium-sized parts. Material processing capabilities extend to multiphase steel, aluminum alloys, custom rolled and welded plate, and stainless steel — enabling Dian Stamping to support everything from body-in-white components to chassis and powertrain applications.

Comprehensive Product Portfolio

Stamping Dies

As experienced automotive stamping dies specialists, Dian Stamping designs and manufactures precision tooling for complex automotive parts. The product range includes dies for body-in-white panels (side frames, door panels, A-pillar reinforcements, spare tire wells), door system components (hinge reinforcement plates, water-cut panels, guides), seating system parts (seat basins, support beams, B-pillar liners), instrument panel components, exhaust system heat shields, and chassis system parts.

Sheet Metal Parts

Beyond tooling, Dian Stamping offers full-service sheet metal production capabilities — from progressive and transfer stamping to deep drawing, forming, laser cutting, and welding assembly. The company serves both the automotive and household appliance industries, producing brackets, panels, hinges, handles, chassis seats, and structural components with tight tolerances and consistent quality. Secondary operations such as deburring, bending, welding, and powder coating are available in-house.

Checking Fixtures

Quality assurance is a cornerstone of Dian Stamping's service offering. The company supplies high-precision checking fixture solutions designed to GD&T standards, enabling rapid and reliable inspection of stamped components and welded assemblies. Checking fixtures eliminate individual measurement variations and are essential for production sites where dimensional accuracy must be verified quickly and consistently across large volumes of parts.

Welding Jigs

Dian Stamping also provides custom welding jigs and fixtures for accurate, repeatable positioning during welding and assembly operations. These jigs support automotive body assembly, chassis welding, and sub-assembly production, ensuring that every welded joint meets the dimensional and structural requirements specified by the customer.

Quality Management and Certifications

Dian Stamping operates under a quality management system aligned with ISO 9001 standards, with manufacturing practices oriented toward IATF 16949 automotive requirements. The company's commitment to quality is reflected in its rigorous inspection protocols, which include in-line checks, 3D coordinate measuring machine (CMM) verification, and dimensional analysis to ensure every part meets OEM specifications.

Customers can request free metal samples to evaluate quality before committing to production, and the company offers prototype services for new vehicle programs — allowing engineers to validate designs and tooling before full-scale manufacturing begins.

Global Customer Base and Track Record

Over two decades of consistent delivery, Dian Stamping has built a diverse customer portfolio that includes major automotive OEMs such as KIA, BYD, Toyota, Honda, Suzuki, and Geely. The company exports to more than 10 countries, serving customers across Asia, Europe, the Americas, and the Middle East. With an annual die turnover of approximately RMB 50 million, Dian Stamping has demonstrated its ability to handle large-scale, long-term supply relationships.

Customization and Delivery

Dian Stamping accepts custom orders based on 2D drawings, 3D data, or physical samples. Typical lead times are 30–40 days for steel stamping dies and approximately 70 days for casting stamping dies, depending on project complexity and requirements. The company's location in Taizhou, Zhejiang — a major manufacturing hub with excellent port access — ensures efficient logistics and timely international shipping.

Why Choose Dian Stamping?

• Factory-Direct Pricing: As a manufacturer, not a trading company, Dian Stamping offers competitive pricing without middleman markups.
• End-to-End Capability: From die design and fabrication to stamping, inspection, welding, and assembly — all under one roof.
• Two Decades of Experience: Serving global OEMs since 2003 with proven engineering and manufacturing expertise.
• Scalable Production: Annual capacity of 2,000 die sets, backed by a 50,000 m² facility and expansion plans.
• Comprehensive Quality Assurance: ISO 9001-aligned systems, CMM inspection, and free sample evaluation available.
• Material Versatility: Capable of processing multiphase steel, aluminum, stainless steel, and custom alloys.