In the fast-paced world of automotive manufacturing, the quality of tooling and stamped components directly determines vehicle safety, structural integrity, and production efficiency. For over two decades, LINHAI DIAN MOULD CO., LTD (Dian Stamping) has been a trusted partner for global automotive OEMs, delivering precision-engineered automotive stamping dies, stamped sheet metal parts, checking fixtures, and welding jigs. With a 50,000 m² manufacturing facility, a dedicated team of 35 die designers and technicians, and an annual capacity of approximately 2,000 sets of medium and small stamping dies, Dian Stamping offers a rare combination of scale, expertise, and cost efficiency that helps OEMs stay competitive in today's demanding market.
Two Decades of Die-Making Excellence
Founded in 2003 in Huangyan, Taizhou, Zhejiang Province, Dian Stamping has grown from a specialized tooling workshop into a comprehensive one-stop manufacturing partner for the automotive industry. The company's development history reflects a deep commitment to continuous improvement — expanding from die design and fabrication into full-spectrum services including sheet metal stamping, welding assembly, and precision inspection. Today, Dian Stamping serves well-known automotive brands including KIA, BYD, Toyota, Honda, Suzuki, and Geely, with exports reaching more than 10 countries worldwide.
The company's longevity and growth are built on a foundation of technical mastery. As experienced stamping die manufacturers, Dian Stamping's team brings decades of combined experience in progressive die design, transfer die engineering, and tandem die manufacturing. This deep expertise enables the company to tackle complex part geometries, tight dimensional tolerances, and challenging material specifications that many competitors cannot handle.
Comprehensive Capabilities Under One Roof
One of Dian Stamping's strongest advantages is its vertically integrated manufacturing model. Unlike many suppliers that outsource portions of their production, Dian Stamping handles tool and die manufacturing, sheet metal stamping, welding, assembly, checking fixture fabrication, and welding jig production all within a single modern campus. This integration eliminates the coordination delays, quality inconsistencies, and hidden costs that plague multi-vendor supply chains.
Core Manufacturing Capabilities:
- Die workshop of approximately 4,000 m² dedicated to precision tooling
- Annual capacity of ~2,000 sets of medium and small stamping dies
- Progressive dies, transfer dies, and tandem/multi-station dies
- Multi-material processing: multiphase steel, aluminum, stainless steel, custom rolled plate
- New 35,000 m² facility with advanced press and coating lines
- Annual die turnover of approximately RMB 50 million
For OEMs seeking reliable progressive die stamping solutions, Dian Stamping's in-house tooling capabilities ensure that every die is designed, manufactured, and tested with strict quality control. The company's die designers leverage advanced CAD/CAM software to optimize tool geometry, material flow, and cycle times, resulting in dies that deliver consistent part quality over long production runs.
A Full Product Portfolio for Automotive Applications
Dian Stamping's product range covers the complete spectrum of automotive stamping needs. The company's Stamping Dies category includes precision tooling for body-in-white components, door systems, seating systems, instrument panels, fuel-tank systems, exhaust systems, clutch systems, and chassis systems. Whether it is a progressive die for high-volume production or a transfer die for complex deep-drawn parts, Dian Stamping delivers tooling that meets OEM specifications.
Beyond dies, the company produces Sheet Metal Parts for both automotive and household appliance industries. From automotive chassis seats and side rails to refrigerator brackets and evaporator panels, the stamping team works with a wide range of materials including SPC440, JAC270CN, aluminum alloys, and galvanized steel. Secondary operations such as laser cutting, bending, deburring, welding, and powder coating are all available in-house, ensuring that customers receive fully finished, assembly-ready components.
Quality assurance is reinforced by a dedicated Checking Fixture division. Dian Stamping designs and builds high-precision GD&T-oriented inspection fixtures that allow rapid verification of stamped parts and welded assemblies. These fixtures eliminate measurement subjectivity, reduce inspection time, and ensure that every part shipped meets the customer's dimensional requirements. The company's Welding Jig services further extend the value chain, providing custom fixtures designed for accurate, repeatable welding and assembly operations.
Quality Systems and Quality Assurance
Dian Stamping operates under an ISO 9001 quality management system, with manufacturing practices aligned to IATF 16949 standards for automotive production. Every die set undergoes rigorous tryout and validation before shipment, and stamped parts are subject to in-process inspections using CMM and other metrology equipment. The company's commitment to quality is reflected in its long-term partnerships with major OEMs that demand consistent, defect-free production.
Customization, Prototyping, and Fast Delivery
Dian Stamping positions itself as a factory-direct supplier, not a trading company. This means customers work directly with the manufacturing team, eliminating middleman markups and communication gaps. The company accepts design inputs in various formats — 2D drawings, 3D CAD data, or physical samples — and offers prototype services to validate tooling and part designs before full-scale production. Typical delivery timelines are 30–40 days for steel stamping dies and approximately 70 days for casting stamping dies, subject to project complexity and current workload.
Why Partner with Dian Stamping?
Automotive OEMs and Tier-1 suppliers choose Dian Stamping for several compelling reasons. First, the company's factory-direct pricing model delivers significant cost advantages compared to sourcing from trading companies or higher-cost manufacturing regions. Second, the integrated manufacturing model — from die design through final assembly — reduces lead times and simplifies supply chain management. Third, two decades of hands-on experience with global automotive brands means Dian Stamping understands the quality standards, documentation requirements, and delivery expectations of the automotive industry.
As the automotive industry continues to evolve toward electric vehicles, lightweight materials, and higher production volumes, the need for reliable, capable stamping partners has never been greater. Dian Stamping's planned 35,000 m² expansion, complete with new press lines and advanced coating capabilities, positions the company to meet these emerging demands head-on.
Ready to Partner with a Trusted Stamping Die Manufacturer?
Whether you need custom progressive dies, high-volume sheet metal stamping, precision checking fixtures, or welding jigs for your next vehicle program, Dian Stamping has the expertise, capacity, and commitment to deliver. Contact Dian Stamping today to discuss your project requirements and discover how a factory-direct partnership can improve your bottom line.