The global automotive industry is under relentless pressure to reduce vehicle weight, improve crash safety, and shorten time-to-market — all while containing costs. For Tier-1 suppliers and OEMs, the quality of the tooling and stamping partner they choose directly determines whether those goals are met. As one of the experienced stamping die manufacturers in China, LINHAI DIAN MOULD CO., LTD (Dian Stamping) has been solving these exact challenges since 2003.
Headquartered in Huangyan, Taizhou, Zhejiang Province, Dian Stamping is not a trading company but a full-scale factory that designs, builds, and delivers precision stamping dies, sheet metal parts, checking fixtures, and welding jigs under one roof. With a 50,000 m² facility, approximately 110 employees, and an annual die output of 2,000 sets, the company has earned the trust of automotive brands including KIA, BYD, Toyota, Honda, Suzuki, and Geely, and exports to more than 10 countries.
A Full Spectrum of Automotive Stamping Capabilities
Dian Stamping specializes in automotive stamping dies that cover the full range of forming techniques — progressive dies for high-speed, multi-station production; transfer dies for large, complex panels; and tandem dies for multi-operation sequences. The company's products serve critical automotive subsystems including body-in-white, door systems, seating systems, instrument panels, fuel-tank systems, exhaust systems, clutch systems, and chassis systems.
Beyond tooling, Dian Stamping operates as a complete sheet metal parts supplier, producing stamped and welded assemblies ready for direct integration into vehicle production lines. The company's material processing capabilities cover multiphase steel (HSS/AHSS), aluminum alloys, custom rolled and welded plate, and stainless steel — enabling lightweight design without compromising structural integrity.
Four Core Product Lines, One Integrated Workflow
Manufacturing Scale and Infrastructure
Dian Stamping's manufacturing campus is designed for end-to-end production flow. The main facility spans approximately 50,000 m² and houses a dedicated die workshop of about 4,000 m². A planned 35,000 m² expansion will add new press lines and advanced coating capabilities, further increasing production capacity.
- Annual Die Capacity: ~2,000 sets of medium and small stamping dies
- Die Design Team: ~35 die designers and technicians using CAD/CAM/CAE tools
- Annual Die Turnover: Approximately RMB 50 million
- Established: 2003 — over 20 years of continuous operation
- Global Reach: Exports to more than 10 countries across Asia, Europe, and the Americas
Quality Systems and Certifications
Quality assurance at Dian Stamping is built on a foundation of ISO 9001 certification, with manufacturing practices aligned to IATF 16949 automotive standards. The company's quality workflow incorporates in-line inspections, coordinate measuring machine (CMM) verification, and GD&T-based checking fixtures to validate dimensional accuracy throughout the production process. Every die and stamped part is subject to rigorous tryout and inspection before shipment.
The company offers customization from 2D drawings, 3D data (CAD/STEP), or physical samples. Prototype services are available for new product development programs, and free metal samples can be provided with the customer covering freight.
Why Global OEMs Choose Dian Stamping
As a direct manufacturer, Dian Stamping eliminates middleman markups — delivering competitive pricing without compromising on quality, precision, or delivery reliability.
From die design and fabrication to stamping production, inspection, and welding assembly, Dian Stamping manages the entire value chain — reducing coordination complexity and lead times for customers.
Typical delivery is 30–40 days for steel stamping dies and approximately 70 days for casting stamping dies, subject to project scope. The company supports urgent project timelines with expedited scheduling.
Applications Across the Vehicle
Dian Stamping's tooling and parts are applied across a wide range of automotive systems:
- Body-in-White: Side frames, outer panels, A/B-pillar reinforcements, spare tire wells, floor panels
- Door Systems: Hinge reinforcement plates, water-cut reinforcement panels, inner and outer door panels
- Seating Systems: Seat basins, support beams, B-pillar liners, battery cases, chassis seats
- Chassis & Suspension: Swing arms, control arms, front wheel house assemblies, beams
- Exhaust & Thermal: Heat shields, flow channels, mounting brackets
- Instrument Panel: Dashboard support structures, cross-car beams
Ready to Partner with a Proven Stamping Die Manufacturer?
Whether you are launching a new vehicle program, sourcing replacement tooling, or scaling up sheet metal parts production, Dian Stamping has the engineering expertise and manufacturing capacity to support you. Contact the team today to discuss your project requirements.