A trusted partner with 20+ years of experience delivering end-to-end tooling and production solutions

When sourcing critical tooling and stamped components for vehicle production, automotive manufacturers face a pivotal question: should they work with multiple specialized suppliers for dies, parts, and fixtures, or consolidate with a single vertically integrated partner? For a growing number of global OEMs, the answer is clear — partner with a manufacturer that can deliver automotive stamping dies, production stamping, checking fixtures, and welding jigs under one roof. This integrated approach eliminates coordination headaches, reduces lead times, and ensures consistent quality across every stage of production.

Linhai Dian Mould Co., Ltd., operating as Dian Stamping Company, has been providing precisely this kind of one-stop manufacturing solution since 2003. Based in Taizhou, Zhejiang Province, Dian Stamping has built a reputation among automotive OEMs and Tier suppliers for precision engineering, factory-direct pricing, and a manufacturing footprint that spans the entire production chain — from die design and fabrication to high-volume stamping, welding, and assembly.

A Manufacturing Facility Built for Scale and Precision

Dian Stamping's production capabilities are anchored in a modern facility covering approximately 50,000 m², with a dedicated die workshop of 4,000 m². The company is currently expanding into a new 35,000 m² facility featuring advanced press lines and coating lines, further increasing its capacity to serve growing demand from the automotive sector.

With around 110 employees — including approximately 35 experienced die designers and technicians — the company achieves an annual output of about 2,000 sets of medium and small stamping dies, with an annual die turnover of approximately RMB 50 million. This scale allows Dian Stamping to take on projects ranging from prototype development to full production runs, a flexibility that is especially valuable in the fast-paced automotive industry.

Capability	Detail
Facility Size	~50,000 m² (existing) + 35,000 m² (new expansion)
Die Workshop	~4,000 m² dedicated space
Annual Die Output	~2,000 sets (medium and small stamping dies)
Annual Die Turnover	~RMB 50 million
Workforce	~110 employees, including 35 die designers/technicians
Materials Processed	Multiphase steel, aluminum, custom rolled & welded plate, stainless steel

Die Making Expertise: Progressive, Transfer, and Tandem Dies

At the heart of Dian Stamping's service offering is its comprehensive die-making capability. The company designs and manufactures a full range of stamping tooling, including progressive die stamping systems, transfer dies, and tandem dies. Each die type serves a specific purpose in automotive production:

• Progressive Dies — Execute multiple operations (blanking, forming, punching, coining, cutoff) in a single press pass, ideal for high-volume, complex parts with tight tolerances.
• Transfer Dies — Designed for large and medium-sized complex parts where individual stations are linked by a transfer system, offering flexibility for intricate geometries.
• Tandem Dies — Used for car body structural components made from high-tensile materials, providing robust forming capability for challenging applications.

All die designs are developed using advanced CAD/CAM software — AutoCAD, SolidWorks, and CATIA — ensuring that every tool meets the dimensional and performance requirements specified by the customer before a single piece of metal is cut.

End-to-End Sheet Metal Parts Production

Beyond die making, Dian Stamping offers comprehensive custom sheet metal parts manufacturing services. From laser cutting and bending to welding, powder coating, and assembly, the company handles the complete fabrication process in-house. This vertical integration means customers receive fully finished components — not just raw stampings — reducing the need for secondary sourcing and qualification.

The company's stamping and fabrication capabilities serve a wide range of automotive applications, including body-in-white systems, door systems, seating systems, instrument panels, exhaust systems, chassis systems, fuel tank systems, and clutch systems. Materials expertise spans multiphase steel, aluminum alloys, custom rolled and welded plate, and stainless steel, enabling customers to ｓｅｌｅｃｔ the optimal material for each application.

Quality Assurance: Checking Fixtures and Welding Jigs

A critical differentiator for Dian Stamping is its ability to design and manufacture checking fixtures and welding jigs alongside its dies and stamped parts. Checking fixtures — built to GD&T (Geometric Dimensioning and Tolerancing) standards — enable rapid, repeatable dimensional verification of stamped components, ensuring that every part leaving the factory meets the specified tolerances. These fixtures are delivered as matched sets with the corresponding press dies, guaranteeing alignment between tooling and inspection.

The company's welding jig capabilities include robotic MIG welding, spot welding, and manual welding techniques, supported by custom-designed welding fixtures that ensure accurate, repeatable positioning during assembly. This integrated tooling approach — dies, checking fixtures, and welding jigs developed as a coordinated system — reduces the risk of dimensional drift and accelerates production ramp-up.

Quality Management and Certifications

Dian Stamping operates a quality management system aligned with ISO 9001 standards and follows IATF 16949-oriented automotive manufacturing practices. The company positions itself as a factory-direct supplier — not a trading company — giving customers direct access to the production floor, engineering team, and quality control processes. This transparency is a key factor in building long-term supply relationships with global automotive brands, including KIA, BYD, Toyota, Honda, Suzuki, and Geely.

Customers can submit requirements via 2D drawings, 3D data, or physical samples, and the engineering team provides a complete solution from design through production. Prototype services are available for new product development, and free metal samples can be provided upon request (with freight paid by the customer). Typical delivery timelines are 30–40 days for steel stamping dies and approximately 70 days for casting stamping dies, depending on project complexity.

Why Vertically Integrated Manufacturing Matters

In an era of supply chain volatility, automotive OEMs and Tier suppliers are increasingly consolidating their supplier base to reduce risk and improve efficiency. Working with a vertically integrated manufacturer like Dian Stamping offers several distinct advantages:

• Single Point of Accountability — One engineering team manages the entire tooling and production chain, from die design to final part delivery.
• Reduced Lead Times — In-house die making, stamping, and finishing eliminate the delays of coordinating between separate suppliers.
• Cost Efficiency — Factory-direct pricing removes intermediary margins, and integrated tooling design reduces material waste and rework.
• Consistent Quality — Matched die and checking fixture sets ensure that dimensional standards are maintained from tooling through production and inspection.
• Global Export Experience — With exports to more than 10 countries, Dian Stamping understands the documentation, packaging, and quality standards required for international shipments.

Global Reach, Local Expertise

Dian Stamping's customer base includes both Chinese domestic OEMs and international automotive brands. The company exports to more than 10 countries across Asia, Europe, and the Americas, demonstrating its ability to meet the quality and compliance requirements of diverse markets. With more than 20 years of industry experience, the company's team brings deep technical knowledge of automotive stamping processes, material behavior, and tooling design.

The company's location in Taizhou, Zhejiang Province — a well-established manufacturing hub in China — provides access to a robust supply chain for raw materials, heat treatment, surface finishing, and other supporting services. This ecosystem advantage translates into competitive pricing and reliable delivery for customers worldwide.