More than 20 years of expertise in automotive stamping dies, sheet metal parts, checking fixtures, and welding jigs — from a single, vertically integrated source.

Finding a reliable manufacturing partner for automotive stamping dies and precision metal components is one of the most critical decisions an OEM procurement team can make. The wrong choice can lead to tooling delays, inconsistent part quality, and costly production disruptions. The right partner, on the other hand, delivers consistent quality, on-time delivery, and a competitive edge.

DIAN STAMPING, operating under LINHAI DIAN MOULD CO., LTD, has been serving global automotive OEMs and Tier suppliers from its manufacturing base in Taizhou, Zhejiang Province since 2003. With a 50,000 m² facility and a team of over 110 professionals, the company has built a reputation as a one-stop, cost-competitive manufacturing partner for the automotive industry.

Company Overview: A Trusted Partner Since 2003

Established in 2003 in Huangyan, Taizhou, DIAN STAMPING has grown from a specialized die shop into a full-service manufacturer covering tool and die making, stamping production, welding, assembly, and inspection. The company's client roster includes major automotive names such as KIA, BYD, Toyota, Honda, Suzuki, and Geely, with exports reaching more than 10 countries worldwide.

What sets DIAN apart is its vertically integrated approach. Rather than outsourcing critical stages of production, the company manages the entire manufacturing chain in-house — from die design and fabrication to stamping, welding, and quality inspection. This integration translates into shorter lead times, better cost control, and consistent quality across every project.

Manufacturing Scale and Capabilities

The company operates a dedicated die workshop of approximately 4,000 m², with an annual capacity of about 2,000 sets of medium and small stamping dies. The annual die turnover is reported at approximately RMB 50 million. A planned 35,000 m² facility featuring new press and coating lines is also in development, signaling the company's commitment to continuous expansion and capability enhancement.

DIAN STAMPING processes a wide range of materials, including multiphase steel, aluminum, custom rolled and welded plate, and stainless steel. This material versatility allows the company to serve diverse application requirements across the automotive supply chain.

Comprehensive Product Portfolio

DIAN STAMPING organizes its offerings into four main categories, each designed to address specific customer needs throughout the automotive manufacturing process:

Stamping Dies — The company designs and manufactures precision progressive die stamping tools, transfer dies, and tandem/multi-station dies for complex automotive parts. Applications span body-in-white components, door systems, seating systems, instrument panels, fuel-tank systems, exhaust systems, clutch systems, and chassis systems. Each die is engineered for durability, high-volume output, and tight dimensional accuracy.

Sheet Metal Parts — Beyond tooling, DIAN produces custom stamped sheet metal components for automotive and household appliance industries. Services include metal laser cutting, forming, bending, welding, and powder coating, with the ability to work from 2D drawings, 3D data, or physical samples.

Checking Fixture — Quality verification is integral to the production process. DIAN's checking fixture solutions enable fast, accurate dimensional inspection of stamped parts and welded assemblies, eliminating individual measurement variations and ensuring every part meets GD&T specifications before shipment.

Welding Jig — Custom welding fixtures and jigs are designed for precise, repeatable positioning during welding operations. These fixtures support accurate assembly and consistent weld quality across production runs, from small batches to high-volume manufacturing.

Quality Assurance and Certifications

As a factory-direct manufacturer rather than a trading company, DIAN offers full transparency into its production processes. Customers can request free metal samples (with freight paid by the customer) to evaluate quality before committing to full-scale production.

Industries and Applications Served

DIAN's products and services are deployed across multiple automotive subsystems:

• Body-in-white structural panels and reinforcements
• Door system components, hinges, and reinforcement plates
• Seating system frames, beams, brackets, and basins
• Instrument panel supports and cross-car beams
• Fuel-tank system and exhaust system components
• Chassis and suspension parts, including control arms and swing arms
• Battery cases and structural components for new energy vehicles
• Household appliance stampings (refrigerators, washing machines, ovens)

Why DIAN STAMPING Stands Out

In a competitive market, DIAN STAMPING differentiates itself through several key attributes:

• Factory-Direct Pricing — By eliminating intermediaries, DIAN offers competitive pricing without compromising quality.
• End-to-End Capability — From die design and fabrication to stamping, welding, and inspection, everything is managed under one roof.
• Proven OEM Track Record — Serving global brands including KIA, BYD, Toyota, Honda, Suzuki, and Geely demonstrates consistent quality and delivery performance.
• Customization Flexibility — The company accepts 2D drawings, 3D data, or physical samples, and offers prototype services for new product development.
• Reliable Lead Times — Typical delivery is 30–40 days for steel stamping dies and approximately 70 days for casting stamping dies, subject to project scope.
• Global Reach — With exports to more than 10 countries, DIAN has the logistics experience and capacity to serve international customers efficiently.

Conclusion: A Partner Built for Long-Term Collaboration

Selecting the right stamping die manufacturer is a strategic decision that affects product quality, production efficiency, and overall supply chain reliability. DIAN STAMPING combines more than two decades of hands-on experience, substantial manufacturing capacity, and a customer-centric approach to deliver solutions that meet the rigorous demands of the global automotive industry.

Whether you need progressive stamping dies for high-volume production, custom sheet metal parts for prototype validation, checking fixtures for quality assurance, or welding jigs for assembly accuracy, DIAN STAMPING has the engineering expertise and production infrastructure to deliver.