The global automotive industry runs on precision. Every vehicle on the road — from a compact sedan to a heavy-duty SUV — relies on thousands of stamped metal components that must meet exacting tolerances, material specifications, and safety standards. Behind those components are the tools that shape them: automotive stamping dies. Choosing the right partner for die design and production is not just a sourcing decision — it is a strategic one that affects cost, quality, and delivery across the entire supply chain.
For more than two decades, LINHAI DIAN MOULD CO., LTD (Dian Stamping) has been that partner for some of the world's most demanding automotive OEMs. Headquartered in Huangyan, Taizhou, Zhejiang Province — one of China's most established manufacturing regions — Dian Stamping has grown from a specialized tooling workshop into a full-service stamping die manufacturers with a modern 50,000 m² facility, approximately 110 skilled employees, and an annual die production capacity of roughly 2,000 sets of medium and small stamping dies.
Two Decades of Automotive Die Expertise
Established in 2003, Dian Stamping brings more than 20 years of hands-on experience in the design and manufacture of stamping tooling for the automotive sector. The company's customer roster includes globally recognized brands such as KIA, BYD, Toyota, Honda, Suzuki, and Geely, with products exported to more than 10 countries. This breadth of clientele speaks to the company's ability to meet diverse engineering standards, quality benchmarks, and delivery schedules across different markets.
The company's reported annual die turnover of approximately RMB 50 million further underscores its position as a serious player in the automotive tooling space. A planned 35,000 m² expansion featuring new press lines and coating facilities signals continued investment in capacity and capability.
At a Glance — Dian Stamping
| Metric | Detail |
|---|---|
| Founded | 2003 |
| Facility Size | ~50,000 m² (current) + 35,000 m² (planned expansion) |
| Die Workshop | ~4,000 m² |
| Employees | ~110, including ~35 die designers and technicians |
| Annual Die Capacity | ~2,000 sets of medium & small stamping dies |
| Annual Die Turnover | ~RMB 50 million |
| Key OEM Customers | KIA, BYD, Toyota, Honda, Suzuki, Geely |
| Export Markets | 10+ countries |
| Quality System | ISO 9001; IATF 16949-oriented practices |
Comprehensive Die Manufacturing Capabilities
Dian Stamping offers a full spectrum of stamping die types to accommodate different production volumes, part geometries, and material requirements:
- Progressive Dies — Ideal for high-volume production of complex parts with multiple forming operations in a single press stroke. Progressive dies minimize handling and maximize throughput, making them suitable for components such as brackets, reinforcement plates, and structural supports.
- Transfer Dies — Designed for larger and more complex parts that require individual die stations, transfer dies enable precise forming of deep-drawn and multi-step components. They are commonly used for body-in-white panels, door system parts, and chassis components.
- Tandem / Multi-Station Dies — A flexible solution for medium-volume production, tandem dies allow multiple operations to be performed in sequence across separate press stations, balancing efficiency with tooling cost.
The company processes a wide range of materials, including multiphase steel (AHSS), aluminum alloys, custom rolled and welded plate, and stainless steel. This material versatility is critical for automotive applications where weight reduction, crash performance, and corrosion resistance are paramount.
End-to-End Services: Beyond Dies
What sets Dian Stamping apart from many sheet metal stamping dies suppliers is its ability to deliver an integrated manufacturing solution. The company does not just design and build dies — it also produces the stamped parts, inspection fixtures, and welding jigs that complete the production cycle.
Sheet Metal Parts Production
Dian Stamping's sheet metal fabrication capabilities cover both automotive and household-appliance applications. From body-in-white stampings and door system components to brackets, panels, and heat shields, the company can handle prototyping through to high-volume production runs. Customization is available from 2D drawings, 3D CAD data, or physical samples, giving customers flexibility in how they specify their requirements.
Precision Checking Fixtures
Quality assurance is only as good as the tools used to perform it. Dian Stamping designs and manufactures high-precision checking fixtures that enable fast, repeatable inspection of stamped components. These GD&T-oriented fixtures allow operators to verify dimensional accuracy across large batches in a fraction of the time required by conventional measurement methods. As the company notes, press dies and checking fixtures are necessary as a set — eliminating the risk of measurement variation and ensuring every part meets specification.
Custom Welding Jigs
For assembly operations, Dian Stamping provides custom welding jigs that ensure accurate positioning and repeatable weld quality. Whether for spot welding, MIG, or TIG processes, these jigs are engineered to hold tight tolerances and improve production line efficiency. The company's welding jig services support a range of automotive sub-assemblies, including chassis components, seat frames, and exhaust system parts.
Quality Systems: ISO 9001 and IATF 16949 Practices
Dian Stamping operates under an ISO 9001-certified quality management system, and its manufacturing practices are aligned with IATF 16949 automotive quality standards. This dual focus ensures that every die, part, and fixture leaving the factory meets the rigorous requirements of the automotive industry.
The company's quality assurance process includes in-line inspections, dimensional verification, and functional tryout of dies before shipment. With approximately 35 experienced die designers and technicians on staff, the engineering team is equipped to handle complex GD&T callouts, tight tolerance requirements, and multi-stage forming challenges.
Why Automotive Buyers Choose Dian Stamping
For procurement professionals and engineering teams evaluating stamping die manufacturers, several factors make Dian Stamping a compelling choice:
- Factory-Direct Pricing — As a manufacturing facility rather than a trading company, Dian Stamping offers competitive pricing without intermediary markups. This is particularly important for high-volume die programs where tooling cost amortization directly impacts per-part pricing.
- Customization from Any Format — Whether the customer provides 2D prints, 3D STEP/IGES models, or physical samples, the engineering team can reverse-engineer, design, and build tooling to match. Prototype services are also available for new product development programs.
- Competitive Lead Times — Typical delivery is 30–40 days for steel stamping dies and approximately 70 days for casting stamping dies, depending on complexity and project scope. The company supports urgent orders where required.
- Global Export Experience — With exports to more than 10 countries and relationships with major international OEMs, Dian Stamping understands the documentation, packaging, and logistics requirements of cross-border trade.
- One-Stop Supply — From die design and manufacturing to stamped parts production, checking fixtures, and welding jigs, the company reduces the complexity of managing multiple suppliers for related tooling and production needs.
Application Areas Across the Vehicle
Dian Stamping's tooling and stamped parts are used across a wide range of automotive systems:
- Body-in-White — Side frames, rear outer panels, A-pillar reinforcement plates, spare tire wells, and floor panels
- Door Systems — Hinge reinforcement plates, door inner and outer panels, water-cut reinforcement panels, guide rails
- Seating Systems — Seat basins, support beams, B-pillar liners, chassis seats, and swing arm assemblies
- Instrument Panels — Dashboard support structures and cross-car beams
- Exhaust & Fuel Systems — Heat shields, fuel tank components, and flow channel parts
- Chassis & Suspension — Control arms, transverse arms, and frame assemblies
Partner with Dian Stamping for Your Next Die Program
Whether you are developing tooling for a new vehicle platform, sourcing production stamped parts, or need precision checking fixtures and welding jigs for your assembly line, Dian Stamping has the engineering expertise, manufacturing capacity, and quality systems to deliver. Contact the team today to discuss your project requirements, request a quotation, or arrange a factory visit.
LINHAI DIAN MOULD CO., LTD
Email: rita@xuhuimould.com | xh-mould@163.com
Phone: +86 13325865358 | +86 13282622227
Address: Hongguang Industrial, Yanjian, Linhai, Taizhou, Zhejiang, China
Website: https://www.dastamping.com/
LINHAI DIAN MOULD CO., LTD
Email: rita@xuhuimould.com | xh-mould@163.com
Phone: +86 13325865358 | +86 13282622227
Address: Hongguang Industrial, Yanjian, Linhai, Taizhou, Zhejiang, China
Website: https://www.dastamping.com/