In today's competitive automotive supply chain, choosing the right manufacturing partner for automotive stamping dies and precision metal components is critical to quality, cost, and delivery performance. With over two decades of hands-on experience, DIAN STAMPING has earned its reputation as a reliable, full-service manufacturer serving OEMs and Tier suppliers across the globe.

Two Decades of Precision Manufacturing

Founded in 2003 and headquartered in Huangyan, Taizhou, Zhejiang Province, LINHAI DIAN MOULD CO., LTD (commonly known as DIAN STAMPING) has grown from a specialized die shop into a comprehensive manufacturing facility covering approximately 50,000 square meters. The company operates a dedicated die workshop of 4,000 square meters and is currently expanding into a new 35,000-square-meter facility equipped with advanced press lines and coating systems.

With a skilled workforce of around 110 employees — including approximately 35 experienced die designers and technicians — DIAN STAMPING achieves an annual production capacity of roughly 2,000 sets of medium and small stamping dies, with an annual die turnover of approximately RMB 50 million. This scale of operation allows the company to serve both high-volume production runs and specialized low-volume projects with equal efficiency.

Comprehensive Product Portfolio Under One Roof

What sets DIAN STAMPING apart is its vertically integrated service model. Rather than outsourcing critical stages of production, the company manages everything from die design and fabrication to stamping, welding, and assembly in-house. This end-to-end capability translates into tighter quality control, shorter lead times, and more competitive pricing for customers.

The company's product range spans four core categories:

• Stamping Dies — Including progressive die stamping, transfer dies, and tandem dies, designed using advanced CAD/CAM software such as AutoCAD, SolidWorks, and CATIA for complex, high-precision metal forming operations.
• Sheet Metal Parts — High-precision stamped components for automotive, household appliance, and industrial applications, with capabilities in laser cutting, bending, welding, and powder coating.
• Checking Fixtures — GD&T-compliant inspection fixtures that ensure rapid, repeatable dimensional verification of stamped components and assemblies.
• Welding Jigs and Assembly Fixtures — Custom-engineered welding fixtures supporting robotic MIG welding, spot welding, and manual welding techniques for precise, repeatable assembly.

These products serve a wide range of automotive applications, including body-in-white systems, door systems, seating systems, instrument panels, fuel tank systems, exhaust systems, clutch systems, and chassis systems.

Material Versatility and Advanced Processing

DIAN STAMPING demonstrates strong material processing capabilities, handling multiphase steel (AHSS), aluminum alloys, custom rolled and welded plate, and stainless steel. This versatility is increasingly important as the automotive industry shifts toward lightweight materials for electric vehicles and fuel efficiency improvements. The company's ability to process both traditional high-strength steels and advanced lightweight alloys positions it as a future-ready partner for evolving automotive requirements.

Quality Management and Certifications

Quality assurance is built into every stage of DIAN STAMPING's operations. The company operates an ISO 9001-certified quality management system and follows IATF 16949-oriented automotive manufacturing and quality practices. Each die and stamped component undergoes rigorous inspection using precision checking fixtures designed and manufactured in-house, ensuring that every part meets the tight dimensional tolerances demanded by automotive OEMs.

Global Customer Base and Industry Recognition

Over the past two decades, DIAN STAMPING has built long-term supply relationships with major automotive brands including KIA, BYD, Toyota, Honda, Suzuki, and Geely. The company exports its products to more than 10 countries, serving customers across Asia, Europe, and the Americas. This global footprint is a testament to the company's consistent quality, competitive pricing, and reliable delivery performance.

Because DIAN STAMPING operates as a factory-direct manufacturer rather than a trading company, customers benefit from direct communication with the production team, transparent pricing without intermediary markups, and greater flexibility in customization and prototyping.

Customization and Prototyping Services

Understanding that every automotive project has unique requirements, DIAN STAMPING offers comprehensive customization services. Customers can submit their requirements in the form of 2D drawings, 3D data, or physical samples, and the company's engineering team will develop a tailored solution. Prototype services are available for validation before full-scale production, and free metal samples can be provided upon request (with freight paid by the customer).

For customers seeking custom sheet metal parts, DIAN STAMPING's end-to-end capabilities — from die design and fabrication to stamping, post-processing, and assembly — mean that a single partner can manage the entire production workflow, reducing coordination overhead and accelerating time to market.

Competitive Lead Times

In the fast-paced automotive industry, delivery speed is a key competitive differentiator. DIAN STAMPING's typical delivery time is 30 to 40 days for steel stamping dies and approximately 70 days for casting stamping dies, depending on project complexity and specifications. These lead times are made possible by the company's fully integrated manufacturing infrastructure, which eliminates the delays associated with coordinating multiple subcontractors.