How one China-based manufacturer combines 20+ years of expertise, a 50,000 m² facility, and fully integrated production to serve global automotive OEMs
When automotive OEMs and Tier-1 suppliers evaluate a stamping partner, they are no longer looking for just a die maker or a parts supplier. They need a manufacturing partner that can manage the entire value chain — from tool design and die construction through high-volume stamping, welding, surface treatment, and final assembly. This is where DIAN STAMPING, operating under LINHAI DIAN MOULD CO., LTD, stands apart.
With over two decades of industry experience and a modern facility spanning approximately 50,000 m² in Taizhou, Zhejiang Province, DIAN STAMPING has positioned itself as a one-stop, cost-competitive partner for automotive stamping dies, stamped sheet metal parts, checking fixtures, welding jigs, and welded assemblies. The company serves marquee names including KIA, BYD, Toyota, Honda, Suzuki, and Geely, and exports to more than 10 countries worldwide.
The Full In-House Advantage
Unlike many competitors who outsource portions of their production, DIAN STAMPING operates a fully integrated in-house manufacturing ecosystem. This means every stage — from die design and machining to sheet metal stamping, welding, powder coating, and assembly — is controlled under one roof. The result is tighter quality control, faster turnaround, and no supply chain handoff risks.
50,000 m²
Modern Production Facility
2,000+
Die Sets per Year
20+ Years
Industry Experience
10+
Export Countries
The company's core capabilities span four major product lines, each serving critical automotive applications from body-in-white to chassis, seating, door, exhaust, and instrument panel systems.
Precision Stamping Dies: The Foundation of Quality
At the heart of DIAN STAMPING's offering is its die-making expertise. The company specializes in progressive die stamping, transfer dies, and tandem/multi-station dies for large and medium-sized complex parts. A dedicated die workshop of approximately 4,000 m² houses a team of around 35 die designers and technicians who use advanced CAD/CAM software including Cimatron, AutoCAD, SolidWorks, and CATIA for precision die design.
Each die set undergoes rigorous tryout and testing before release. The company's annual die turnover of approximately RMB 50 million reflects a steady, high-volume production rhythm that automotive OEMs require. The planned 35,000 m² expansion — featuring new press and coating lines — will further increase capacity and capability.
Custom Sheet Metal Parts — From Prototype to High-Volume Production
Beyond tooling, DIAN STAMPING is a full-fledged custom sheet metal parts manufacturer. The company handles prototyping, sampling, and mass production of precision stamped components for automotive, household appliance, and industrial applications. Capabilities include:
- Material versatility: Multiphase steel, aluminum alloys, stainless steel, custom rolled and welded plate, brass, and cold-rolled steel.
- Secondary operations: Laser cutting, deburring, bending, welding, powder coating, and assembly.
- Customization: Parts can be developed from 2D drawings, 3D CAD data, or physical samples.
- Typical lead time: 30–40 days for steel stamping dies; approximately 70 days for casting dies, subject to project scope.
Did you know? DIAN STAMPING processes materials ranging from high-strength multiphase steel to lightweight aluminum and corrosion-resistant stainless steel, making it a versatile partner for both traditional internal combustion engine vehicles and new energy vehicles (NEVs).
Checking Fixtures and Welding Jigs: Ensuring Dimensional Accuracy
Quality assurance in automotive stamping goes beyond the press. DIAN STAMPING designs and manufactures high-precision checking fixture solutions that enable fast, reliable dimensional inspection of stamped components and welded assemblies. GD&T-oriented fixture design ensures that even complex geometries can be verified quickly on the production floor, eliminating individual measurement variations.
Complementing the inspection side, the company's welding jig capabilities cover custom fixtures for spot welding, TIG welding, MIG welding, and robotic welding applications. From chassis welding jigs to exhaust system fixtures, DIAN STAMPING supports accurate, repeatable positioning for high-volume assembly lines.
Quality Systems and Certifications
DIAN STAMPING operates under a quality management system that follows ISO 9001 standards, with manufacturing practices aligned to IATF 16949 automotive requirements. The company has been recognized as a National High-Tech Enterprise and a Zhejiang Provincial Technology-based SME, and holds multiple patents related to die design and manufacturing processes.
| Certification / Recognition | Scope |
|---|---|
| ISO 9001 | Quality management system for stamping die design and manufacturing |
| IATF 16949 (Aligned) | Automotive manufacturing quality practices |
| National High-Tech Enterprise | Recognized for advanced technology and R&D capabilities |
| TUV Certification | Product and process compliance with international standards |
| Multiple Patents | Die design, fixture innovation, and manufacturing processes |
Application Coverage Across Automotive Systems
DIAN STAMPING's products serve a wide range of automotive subsystems, each with unique dimensional, material, and performance requirements:
| Application Area | Typical Components |
|---|---|
| Body-in-White | Side frames, A-pillar panels, spare tire wells, rear outer panels |
| Door Systems | Hinge reinforcement plates, water-cut panels, door inner/outer panels |
| Seating Systems | Seat basins, support beams, B-pillar liners, battery cases |
| Chassis Systems | Control arms, swing arms, floor panels, cross members |
| Exhaust Systems | Heat shields, flow channel components |
| Instrument Panel | Dashboard support structures, reinforcement brackets |
| Fuel Tank Systems | Fuel tank mounting brackets and support structures |
| Clutch Systems | Clutch housing and bracket stamped components |
Why Global OEMs Choose DIAN STAMPING
In an industry where precision, consistency, and cost-efficiency are non-negotiable, DIAN STAMPING delivers on all fronts. Here is what sets the company apart:
- Factory-direct pricing: As a true manufacturer — not a trading company — DIAN STAMPING offers competitive pricing without intermediary markups.
- End-to-end integration: From die design to finished assembly parts, every process is managed in-house, ensuring traceability, consistency, and faster problem resolution.
- Scalable capacity: With an annual die output of 2,000+ sets and a growing facility, the company can handle programs ranging from prototype runs to high-volume production.
- Proven track record: Serving OEMs like KIA, BYD, Toyota, Honda, Suzuki, and Geely demonstrates the company's ability to meet stringent automotive quality standards.
- Customization flexibility: Free metal samples, prototype services, and engineering support from 2D/3D data or physical samples reduce the barrier to entry for new projects.
Ready to Partner with a Full-Chain Stamping Manufacturer?
Whether you need precision stamping dies, custom sheet metal parts, checking fixtures, or welding jigs for your next automotive program, DIAN STAMPING has the experience, capacity, and quality systems to deliver.
Contact the team today to discuss your project requirements and request a free quote.
Contact DIAN STAMPING
Contact the team today to discuss your project requirements and request a free quote.