In today's competitive automotive supply chain, finding a partner who can deliver precision tooling, high-volume production, and rigorous quality inspection under one roof is no longer a luxury — it is a necessity. DIAN STAMPING, operating under LINHAI DIAN MOULD CO., LTD, has been serving global automotive OEMs for over two decades, offering a genuinely integrated approach to metal forming and assembly.
A Foundation Built on Experience
Established in 2003 in Huangyan, Taizhou, Zhejiang Province, DIAN STAMPING has grown from a specialized tooling workshop into a comprehensive manufacturing facility covering approximately 50,000 m². With a dedicated die workshop of 4,000 m² and a team of around 110 employees — including 35 experienced die designers and technicians — the company possesses the depth of expertise required to tackle complex automotive projects. Its customer roster includes globally recognized brands such as KIA, BYD, Toyota, Honda, Suzuki, and Geely, with export markets spanning more than 10 countries.
This two-decade track record is not just about longevity — it reflects a proven ability to adapt to evolving automotive standards, material technologies, and production methodologies. Whether it is a new energy vehicle program or a traditional internal combustion platform, DIAN STAMPING brings the engineering maturity needed to deliver consistent results.
Precision Tooling: The Heart of the Operation
At the core of DIAN STAMPING's offering lies its expertise in automotive stamping dies. The company designs and manufactures a full spectrum of stamping tooling, including progressive dies, transfer dies, and tandem dies, each engineered to meet the specific demands of the part being produced. Progressive dies enable multiple operations — blanking, forming, punching, coining, and cutoff — in a single press pass, delivering exceptional efficiency for high-volume production. Transfer dies handle complex large and medium-sized parts, while tandem dies are purpose-built for car body structural components that require high-tensile materials.
The design process leverages advanced CAD/CAM software including AutoCAD, SolidWorks, and CATIA, ensuring that every die is optimized for both formability and durability. With an annual capacity of approximately 2,000 sets of medium and small stamping dies and an annual die turnover of around RMB 50 million, DIAN STAMPING operates at a scale that few competitors can match.
Beyond Dies: A One-Stop Manufacturing Ecosystem
What truly sets DIAN STAMPING apart is its ability to serve as a complete manufacturing partner rather than a single-process supplier. The company's capabilities extend far beyond tooling to encompass stamped sheet metal parts, checking fixtures, welding jigs, welding assemblies, and complete assembly solutions.
In the realm of custom metal stamping dies and stamped parts, DIAN STAMPING processes a wide range of materials including multiphase steel, aluminum, custom rolled and welded plate, and stainless steel. The sheet metal fabrication line is equipped with laser cutting, bending, welding, and powder coating capabilities, enabling the company to deliver finished components ready for direct assembly. Application areas include body-in-white, door systems, seating systems, instrument panels, exhaust systems, chassis systems, fuel tank systems, and clutch systems — covering virtually every structural and mechanical subsystem of a modern vehicle.
Quality Assurance Through Precision Inspection
No manufacturing operation is complete without rigorous quality control, and DIAN STAMPING addresses this through its in-house checking fixture capabilities. These high-precision inspection fixtures are designed in accordance with GD&T (Geometric Dimensioning and Tolerancing) standards, enabling rapid, repeatable dimensional verification of stamped components. By delivering press dies and checking fixtures as a matched set, the company ensures that every part meets its design intent from the very first production run.
The company's quality management system is certified to ISO 9001, with manufacturing practices aligned to IATF 16949 automotive standards. This dual commitment to process control and dimensional accuracy gives customers confidence that every shipment — whether a prototype batch or a high-volume production order — meets the same exacting specifications.
- Facility: ~50,000 m² modern manufacturing campus with 4,000 m² dedicated die workshop
- Workforce: 110+ skilled employees, including 35 die designers and technicians
- Die Capacity: ~2,000 sets of medium and small stamping dies per year
- Die Types: Progressive, transfer, and tandem dies
- Materials: Multiphase steel, aluminum, stainless steel, custom rolled and welded plate
- Secondary Operations: Laser cutting, bending, welding, powder coating, assembly
- Quality: ISO 9001 certified, IATF 16949-oriented practices
- Lead Time: 30–40 days for steel dies, ~70 days for casting dies
Welding and Assembly: Closing the Loop
Beyond stamping and inspection, DIAN STAMPING offers comprehensive welding jig design and fabrication services, along with robotic MIG welding, spot welding, and manual welding capabilities. Custom welding fixtures are engineered to ensure accurate, repeatable positioning during assembly, reducing cycle times and improving joint quality. The company also produces welded subassemblies and finished assembly parts, making it a true end-to-end supplier for automotive Tier 1s and OEMs.
This vertically integrated model means that customers manage fewer suppliers, reduce logistics complexity, and benefit from single-point accountability. When the same organization designs the die, stamps the part, builds the checking fixture, and performs the welding, communication gaps are eliminated and quality is maintained across every step of the value chain.
Factory-Direct Pricing and Global Reach
As a factory rather than a trading company, DIAN STAMPING offers competitive pricing that reflects genuine manufacturing costs rather than broker margins. Customers can submit 2D drawings, 3D data, or physical samples for quotation, and the company provides prototype services to validate designs before committing to full production tooling. Free metal samples are available upon request, with freight covered by the customer.
With a planned 35,000 m² expansion featuring new press lines and coating facilities, DIAN STAMPING is investing in the future of automotive manufacturing. This expansion will further strengthen its ability to serve global customers with faster lead times, higher volumes, and enhanced surface finishing capabilities.
Why Automotive Buyers Choose DIAN STAMPING
The automotive industry's shift toward electric vehicles, lightweight materials, and shorter development cycles places unprecedented demands on supply chain partners. DIAN STAMPING's combination of 20+ years of experience, full-spectrum manufacturing capabilities, and commitment to quality makes it a compelling choice for buyers seeking a reliable long-term partner.
Whether you need complex progressive dies for a high-volume structural component, precision checking fixtures for dimensional validation, or turnkey welded assemblies ready for just-in-sequence delivery, DIAN STAMPING has the engineering expertise, production capacity, and quality systems to deliver.
Contact the DIAN STAMPING team today to discuss your next project. Send your 2D drawings, 3D data, or physical samples for a competitive quotation.
LINHAI DIAN MOULD CO., LTD
Hongguang Industrial, Yanjian, Linhai, Taizhou, Zhejiang Province, China
Phone: +86 13325865358 | +86 13282622227
Email: rita@xuhuimould.com | xh-mould@163.com
Website: www.dastamping.com