Two decades of engineering experience, 50,000 square meters of manufacturing capacity, and a single-minded focus on quality.
Who We Are
DIAN Stamping (Linhai Dian Mould Co., Ltd.) was founded in 2003 in Huangyan, Taizhou, Zhejiang, and has grown into a full-spectrum manufacturer of automotive stamping dies and sheet metal components. Headquartered in the Hongguang Industrial Zone of Linhai, the company operates a modern facility spanning approximately 50,000 square meters, including a dedicated 4,000-square-meter die workshop.
With a team of around 110 employees, more than 35 of whom are die designers and technicians, DIAN Stamping combines hands-on craftsmanship with digital engineering. The company produces roughly 2,000 sets of medium and small stamping dies each year, serving automotive OEMs and tier suppliers across more than ten countries.
DIAN Stamping is not a trading company. Every order is handled in-house, from die design and tryout to stamping, welding, and surface finishing. This vertical integration is the foundation of the company's consistent lead times and competitive pricing.
Core Capabilities
DIAN Stamping covers four interconnected product lines, each built around precision tooling and production know-how.
Stamping Dies
Progressive, transfer, and tandem dies designed in AutoCAD, SolidWorks, and CATIA. Steel dies ship in 30-40 days; casting dies in approximately 70 days. Annual die turnover reaches roughly RMB 50 million.
Sheet Metal Parts
End-to-end fabrication including laser cutting, bending, welding, and powder coating. The company handles custom rolled steel, welded plate, aluminum, stainless steel, and multiphase steel grades.
Checking Fixtures
GD&T-compliant inspection fixtures designed to verify dimensional accuracy of stamped parts, supporting both production quality control and customer PPAP submissions.
Welding Jigs
Custom jigs for robotic MIG welding, spot welding, and manual welding operations, designed to improve repeatability and reduce cycle time on assembly lines.
Design-to-Production Workflow: DIAN Stamping accepts 2D drawings, 3D data, or physical samples as input. Prototype services are available before full production tooling is committed, reducing risk for customers during new product introduction.
Quality Systems and Certifications
DIAN Stamping operates under ISO 9001 and follows IATF 16949-oriented manufacturing practices. The company has been recognized as a National High-Tech Enterprise and holds multiple patents related to die design and metal forming processes.
In-process inspection and final validation are supported by the company's checking fixture capability, allowing dimensional verification against GD&T standards at every stage of production. All manufacturing is performed in-house with zero outsourcing, giving the quality team full control over process consistency.
The company's affiliated entities, Linhai Diyao New Technology Co., Ltd. and Taizhou Elay International Trade Co., Ltd., support continued R&D investment and export logistics respectively.
Application Areas
DIAN Stamping's dies and parts are used across a wide range of automotive systems. The company's engineering team has accumulated deep experience in tooling for body-in-white as well as mechanical and structural sub-assemblies.
- Body-in-white systems
- Door systems
- Seating systems
- Instrument panels
- Exhaust systems
- Chassis systems
- Fuel tank systems
- Clutch systems
Material capabilities include multiphase steel (various tensile grades), aluminum alloys, custom rolled steel, welded plate, and stainless steel. This breadth allows DIAN Stamping to support both structural and cosmetic components within the same production flow.
Why Automotive Buyers Choose DIAN Stamping
Factory-Direct Pricing
No middlemen or trading markups. Pricing reflects actual manufacturing cost from die design through finished parts.
Lead Time Reliability
Steel dies in 30-40 days; casting dies in ~70 days. In-house production eliminates scheduling dependencies on external suppliers.
Customization Flexibility
Work from 2D prints, 3D CAD models, or physical samples. Prototyping available before production commitment.
Full In-House Control
Die design, machining, tryout, stamping, welding, and coating all under one roof. No outsourcing.
Global OEM Experience
Components supplied to KIA, BYD, Toyota, Honda, Suzuki, and Geely, among others, across 10+ countries.
Expanding Capacity
A new 35,000 m² facility is planned with additional press lines and coating capabilities, ensuring capacity scales with demand.
As a progressive die stamping specialist with a track record spanning more than twenty years, DIAN Stamping understands the tolerances, material behaviors, and lead-time pressures that automotive buyers face. The company's approach is straightforward: apply engineering judgment early, manufacture with discipline, and deliver on schedule.
Material Processing Expertise
DIAN Stamping processes a range of advanced materials beyond conventional steel. Multiphase and high-strength steels are handled routinely, as are aluminum alloys for lightweight applications. For customers with specific dimensional or surface requirements, the company offers custom rolled steel and welded plate options, along with stainless steel for corrosion-resistant assemblies.
Free metal samples are available for evaluation, with the customer covering freight. This allows buyers to verify material quality and surface finish before committing to production volumes.
Ready to Discuss Your Next Stamping Project?
Whether you need a single progressive die or a full production run of sheet metal parts, DIAN Stamping has the engineering depth and capacity to deliver. Contact the team to discuss your requirements, request a quotation, or arrange a facility visit.
Get in Touch with DIAN StampingFor buyers evaluating stamping die manufacturers capable of handling both tooling and production, DIAN Stamping offers a vertically integrated alternative that reduces supply chain complexity. The company's combination of in-house die design, broad material processing capability, and direct-from-factory pricing makes it a practical choice for automotive OEMs and tier suppliers looking for a long-term manufacturing partner.