Who Is Dian Stamping?

LINHAI DIAN MOULD CO., LTD (Dian Stamping) is a China-based manufacturer with over 20 years of focused experience in the stamping industry. Founded in 2003 and headquartered in Huangyan, Taizhou, Zhejiang Province, the company has grown into a comprehensive one-stop supplier for automotive OEMs and Tier 1 suppliers worldwide. Unlike traditional trading companies, Dian Stamping operates as a fully integrated factory, giving customers direct access to manufacturing capabilities without intermediary markups.

The company's modern facility spans approximately 50,000 m², including a dedicated die workshop of 4,000 m², with a planned 35,000 m² expansion featuring new press lines and advanced coating lines. With around 110 employees — including 35 highly skilled die designers and technicians — Dian Stamping has the engineering depth to handle complex projects from concept to production.

Core Capabilities in Stamping Dies and Tooling

Dian Stamping specializes in the full spectrum of stamping die manufacturing, including progressive dies, transfer dies, and tandem/multi-station dies. These are designed for medium to large, complex automotive parts — from body-in-white structural components to intricate door system parts. The company's annual capacity reaches approximately 2,000 sets of medium and small stamping dies, with an annual die turnover of approximately RMB 50 million.

For customers seeking automotive stamping dies, Dian Stamping offers a versatile material processing capability that includes multiphase steel, aluminum alloys, custom rolled and welded plate, and stainless steel. Whether you need high-strength steel stamping for crash-resistant body structures or lightweight aluminum parts for electric vehicles, the technical team can engineer the right die solution.

Beyond Dies: A Complete Manufacturing Ecosystem

Dian Stamping sets itself apart by offering an integrated suite of services that extends far beyond die manufacturing. The company produces precision stamped sheet metal parts, checking fixtures, welding jigs, welding parts, and assembly components — all under one roof. This end-to-end approach eliminates the coordination headaches of working with multiple suppliers and ensures consistent quality across every stage of production.

A checking fixture is an essential companion to any press die, enabling fast, reliable dimensional verification of stamped parts. Dian Stamping designs and manufactures high-precision checking fixtures based on GD&T standards, allowing operators to inspect hundreds of parts in sequence simply by fixturing them. This eliminates the individual measurement variability that plagues manual inspection and ensures every part meets OEM specifications before it moves to the next process.

For welding operations, the company's custom welding jigs provide accurate positioning and repeatable clamping for automotive body assemblies, chassis components, and sub-assemblies. Combined with in-house welding part production, Dian Stamping can deliver ready-to-assemble components that reduce your in-house processing requirements.

Application Areas Across the Vehicle

Dian Stamping's product portfolio covers virtually every major automotive system. The company's dies and stamped parts are used in:

• Body-in-White: Outer panels, side frames, A-pillar inner and outer panels, B-pillar assemblies, floor panels, and spare tire wells
• Door Systems: Hinge reinforcement plates, water-cut reinforcement panels, door inner panels, and guides
• Seating Systems: Seat basins, support beams, battery cases, swing arms, and chassis seats
• Instrument Panels: Dashboard support structures and cross-car beams
• Exhaust Systems: Heat shields and thermal protection panels
• Chassis Systems: Control arms, transverse arm assemblies, and suspension components

Quality Systems and OEM Partnerships

Quality is embedded in every step of Dian Stamping's manufacturing process. The company operates under an ISO 9001 quality management system and follows IATF 16949-oriented automotive manufacturing practices. This commitment to quality has earned the trust of major automotive OEMs including KIA, BYD, Toyota, Honda, Suzuki, and Geely, with exports reaching more than 10 countries worldwide.

With typical delivery times of 30–40 days for steel stamping dies and approximately 70 days for casting stamping dies, Dian Stamping balances speed with precision. The company also offers free metal samples (with freight paid by the customer), prototype services, and customization from 2D drawings, 3D data, or physical samples.

Why Choose Dian Stamping as Your Manufacturing Partner?

Choosing the right stamping partner is a strategic decision that affects your product quality, cost structure, and supply chain reliability. Here is what makes Dian Stamping a compelling choice:

• Factory-Direct Pricing: As a manufacturer, not a trading company, Dian Stamping offers competitive factory pricing without middleman markups
• 20+ Years of Expertise: Two decades of hands-on experience in automotive stamping die design, manufacturing, and tryout
• One-Stop Service: Dies, stamped parts, checking fixtures, welding jigs, and assembly — all from a single source
• Global Shipping: Reliable logistics to more than 10 countries, with air and sea freight options
• Engineering Support: 35+ die designers and technicians using advanced CAD/CAM software for optimized tooling design