From die design to mass production — a trusted partner for global automotive OEMs and Tier-1 suppliers
In automotive manufacturing, the quality of your tooling sets the ceiling for the quality of your final product. Every body panel, chassis bracket, and structural reinforcement starts with a precisely engineered stamping die. That is why choosing the right partner for precision die and stamping is one of the most consequential decisions an OEM or Tier supplier can make. A reliable partner does not just deliver tooling — they deliver consistency, repeatability, and long-term cost efficiency across every production run.
Founded in 2003 and headquartered in Huangyan, Taizhou, Zhejiang Province, LINHAI DIAN MOULD CO., LTD (Dian Stamping) has spent more than two decades perfecting the craft of precision die and stamping. With a modern 50,000 m² facility, approximately 110 employees, and an annual capacity of roughly 2,000 sets of medium and small stamping dies, the company serves a growing roster of global automotive brands including KIA, BYD, Toyota, Honda, Suzuki, and Geely, with exports reaching more than 10 countries.
Why Precision Die and Stamping Defines Automotive Quality
Modern vehicles are assemblies of thousands of stamped components, each required to meet tight tolerances for fit, safety, and durability. From body-in-white structures to seating systems and exhaust components, a single off-specification part can cause assembly-line delays, rework costs, or even field failures. This is why precision die and stamping is not just a manufacturing step — it is a quality gate.
A well-designed stamping die delivers consistent dimensional accuracy across hundreds of thousands of cycles. It minimizes material waste, reduces press downtime, and extends tool life. Dian Stamping's engineering team — roughly 35 die designers and technicians — uses advanced CAD/CAM software to design tooling that achieves these goals, leveraging progressive die, transfer die, and tandem/multi-station technologies to match the specific geometry and volume requirements of each project.
Comprehensive Capabilities: Beyond the Die
Dian Stamping's service offering extends far beyond die manufacturing. The company operates as a vertically integrated manufacturer, providing end-to-end solutions from tooling development to stamped part production, inspection, and assembly.
Automotive Stamping Dies
The company's core strength lies in its automotive stamping dies — precision tooling engineered for high-volume production of complex metal parts. The die workshop, spanning approximately 4,000 m², is equipped to produce progressive dies, transfer dies, compound dies, and tandem line dies for a wide range of applications:
Body-in-White
Door panels, side frames, A-pillar reinforcements, spare tire wells, fenders, and rear outer panels
Door Systems
Hinge reinforcement plates, water-cut panels, middle gate components, and guide rails
Seating Systems
Seat basins, B-pillar liners, support beams, battery cases, floor panels, and cross members
Chassis & Exhaust
Swing arms, control arm assemblies, heat shields, and chassis mounting brackets
Dian Stamping processes a wide spectrum of materials including multiphase high-strength steel (HSS), aluminum alloys, custom rolled and welded plate, and stainless steel, enabling the production of lightweight yet durable components that meet modern automotive safety and efficiency standards.
Sheet Metal Parts and Fabrication
Beyond tooling, Dian Stamping offers comprehensive sheet metal stamping dies and production services for both automotive and household appliance industries. The company's fabrication capabilities include progressive and transfer stamping, deep drawing and forming, laser cutting, welding, assembly, and surface treatment such as powder coating. Whether producing refrigerator brackets for appliance manufacturers or structural parts for automotive platforms, Dian Stamping delivers consistent quality from prototype through high-volume production.
Checking Fixtures and Welding Jigs
Quality assurance is built into every stage of the manufacturing process. Dian Stamping designs and builds high-precision checking fixtures that enable rapid, repeatable dimensional inspection of stamped components, eliminating individual measurement variation and ensuring GD&T compliance. The company also manufactures custom welding jigs that provide accurate positioning and repeatable weld results for automotive assemblies — a critical requirement for body-in-white and chassis structures where weld integrity directly affects vehicle safety.
Factory-Direct Advantage: As a manufacturing factory rather than a trading company, Dian Stamping offers direct pricing, full quality control, and faster communication. Parts can be developed from 2D drawings, 3D CAD data, or physical samples, with prototype services available for new vehicle programs.
Quality Systems and Delivery Performance
Dian Stamping operates under an ISO 9001 certified quality management system, with manufacturing practices aligned to IATF 16949 automotive standards. This commitment to quality is reflected in the company's delivery performance:
- Steel stamping dies: Typical lead time of 30–40 days, depending on part complexity
- Casting stamping dies: Approximately 70 days, subject to project specifications
- Annual die output: Roughly 2,000 sets of medium and small stamping dies
- Annual die turnover: Approximately RMB 50 million
A planned 35,000 m² facility expansion featuring new press lines and coating capabilities will further increase capacity and shorten lead times, reinforcing Dian Stamping's ability to support growing customer demand.
A Track Record Global Automakers Trust
Over two decades, Dian Stamping has built a customer base that includes some of the world's largest automotive manufacturers. The company's ability to meet the rigorous quality, delivery, and cost requirements of OEMs like KIA, BYD, Toyota, Honda, Suzuki, and Geely speaks to the reliability of its precision die and stamping operations. With exports spanning more than 10 countries across Asia, Europe, and the Americas, Dian Stamping understands the documentation, packaging, and logistics standards required for international shipping.
The company's application expertise covers body-in-white, door systems, seating systems, instrument panels, fuel-tank systems, exhaust systems, clutch systems, and chassis systems — making it a versatile partner capable of supporting multiple vehicle programs simultaneously.
Conclusion: Partner with Experience
In an industry where precision, reliability, and cost-efficiency are non-negotiable, the choice of manufacturing partner has a direct impact on your program's success. With 20+ years of hands-on experience, a modern 50,000 m² facility, in-house die design and tryout capabilities, and a proven track record with global automotive leaders, Dian Stamping is well-positioned to be your long-term partner for precision die and stamping solutions.
Ready to Discuss Your Next Project?
Contact Dian Stamping today for a quote or technical consultation.
Phone: +86 13325865358 | Email: rita@xuhuimould.com
Visit: www.dastamping.com