In the competitive world of automotive manufacturing, the quality of your tooling and stamped components directly impacts production efficiency, part consistency, and final vehicle safety. Finding a partner who can deliver precision automotive stamping dies, reliable sheet metal parts, and comprehensive quality assurance under one roof is no small task. LINHAI DIAN MOULD CO., LTD (Dian Stamping) has built its reputation over more than two decades as a one-stop manufacturing partner that checks every box — from die design and fabrication to high-volume stamping, welding, and inspection.

More Than Two Decades of Stamping Expertise

Established in 2003 in Huangyan, Taizhou, Zhejiang Province, Dian Stamping brings over 20 years of hands-on experience in the design and manufacture of stamping tooling and metal components. The company operates a modern facility covering approximately 50,000 square meters, including a dedicated die workshop of 4,000 square meters. With around 110 employees — roughly 35 of whom are die designers and technicians — Dian Stamping combines deep engineering talent with practical manufacturing know-how.

The company's annual die production capacity reaches approximately 2,000 sets of medium and small stamping dies, with an annual die turnover of around RMB 50 million. A planned 35,000-square-meter expansion featuring new press lines and coating facilities will further strengthen its manufacturing capabilities, making it an even more capable partner for growing production demands.

Comprehensive Die Manufacturing Capabilities

Dian Stamping offers a full spectrum of stamping die solutions, including progressive dies, transfer dies, and tandem dies for complex large and medium-sized parts. The engineering team utilizes advanced CAD/CAM software — AutoCAD, SolidWorks, and CATIA — to design tooling that meets the most demanding automotive specifications. From body-in-white structural components to door systems, seating systems, instrument panels, and chassis parts, the company's dies are built to handle high-tensile materials, multiphase steel, aluminum, custom rolled and welded plate, and stainless steel.

Typical delivery times are 30–40 days for steel stamping dies and approximately 70 days for casting stamping dies, subject to project complexity. This efficient turnaround, combined with factory-direct pricing, makes Dian Stamping a cost-competitive choice for global automotive OEMs and Tier suppliers.

Precision Custom Sheet Metal Parts and Fabrication

Beyond tooling, Dian Stamping is a full-service manufacturer of custom metal stamping parts. The company's sheet metal fabrication capabilities include laser cutting, bending, welding, and powder coating — enabling end-to-end production from prototyping to high-volume runs. Whether you need automotive body panels, brackets, structural reinforcements, or components for household appliances and industrial equipment, Dian Stamping delivers parts that meet exact dimensional and material specifications.

The company works with a wide range of materials, including multiphase steel, aluminum alloys, stainless steel, and custom rolled and welded plate. Customers can send 2D drawings, 3D data, or physical samples for custom part development, and prototype services are available for design validation before full-scale production.

Quality Assurance with Precision Checking Fixture Solutions

Quality control is a cornerstone of Dian Stamping's service offering. The company designs and builds high-precision checking fixtures that are fully compliant with GD&T (Geometric Dimensioning and Tolerancing) standards. These fixtures enable rapid, repeatable dimensional verification of stamped components and assemblies, ensuring that every part leaving the factory meets the required specifications.

Dian Stamping delivers press dies and checking fixtures as a matched set, eliminating the coordination headaches that often arise when tooling and inspection fixtures come from different suppliers. This integrated approach reduces lead times and ensures that the inspection criteria are perfectly aligned with the die design from day one.

Welding Jigs and Assembly Fixtures

Completing its one-stop service model, Dian Stamping also provides custom welding jigs and assembly fixtures. The company's welding capabilities include robotic MIG welding, spot welding, and manual welding techniques, supported by custom-designed welding jigs that ensure accurate, repeatable positioning during assembly. This integrated workflow — from die and checking fixture to welding jig — streamlines the supply chain and reduces the total cost of ownership for automotive OEMs.

Global Customer Trust and Certifications

Dian Stamping serves a global customer base, exporting to more than 10 countries and supplying OEM customers including KIA, BYD, Toyota, Honda, Suzuki, and Geely. The company operates under an ISO 9001 quality management system and follows IATF 16949-oriented automotive manufacturing practices. This combination of international certifications and proven OEM track record gives customers confidence in both product quality and supply reliability.

Why Choose Dian Stamping as Your Manufacturing Partner

What sets Dian Stamping apart is its vertically integrated approach. As a direct factory — not a trading company — it offers transparent pricing, direct communication with engineers, and full control over the production process. Customers benefit from:

• End-to-end service: Die design, fabrication, stamping, welding, inspection — all under one roof.
• Factory-direct pricing: Competitive rates without intermediary markups.
• Customization flexibility: Parts made from 2D drawings, 3D data, or physical samples.
• Proven quality systems: ISO 9001 certified with IATF 16949-oriented practices.
• Global delivery: Reliable shipping to customers across more than 10 countries.