A Partner with Two Decades of Manufacturing Excellence

Founded in 2003 and headquartered in Huangyan, Taizhou, Zhejiang Province, LINHAI DIAN MOULD CO., LTD (Dian Stamping) has spent over 20 years perfecting the art and science of automotive stamping dies and precision sheet metal fabrication. With a modern 50,000 m² facility, a dedicated 4,000 m² die workshop, and a skilled team of approximately 110 employees — including 35 die designers and technicians — Dian Stamping operates at a scale that few competitors can match.

The company's annual production capacity of approximately 2,000 sets of medium and small stamping dies, combined with a reported annual die turnover of approximately RMB 50 million, demonstrates a level of operational maturity that comes only from decades of hands-on experience serving global automotive OEMs.

Comprehensive Stamping Die Solutions for Every Stage of Production

Dian Stamping specializes in the design and manufacture of three primary types of stamping dies, each engineered to meet specific production requirements:

• Progressive Dies — Combining multiple operations (blanking, forming, punching, coining, and cutoff) in a single continuous pass, progressive die stamping delivers exceptional efficiency for high-volume production runs with tight tolerances.
• Transfer Dies — Designed for complex large and medium-sized parts that require sequential forming operations across multiple stations, offering flexibility without sacrificing precision.
• Tandem Dies — Purpose-built for car body structural components, particularly those involving high-tensile materials where dimensional accuracy is critical to vehicle safety and fit.

Every die is designed using advanced CAD/CAM software including AutoCAD, SolidWorks, and CATIA, then precision-machined and rigorously tested before delivery. This ensures that each tool performs exactly as specified from the first production run.

High-Quality Sheet Metal Parts and Fabrication Services

Beyond tooling, Dian Stamping is a full-service custom sheet metal parts manufacturer with in-house capabilities that span the entire production chain. From laser cutting and bending to welding and powder coating, the company transforms raw materials into finished components ready for assembly.

The company processes a wide range of materials including multiphase steel, aluminum, custom rolled and welded plate, and stainless steel, serving industries that include automotive, household appliances, and general industrial applications. Whether you need prototype runs to validate a design or high-volume production for ongoing supply, Dian Stamping offers the flexibility to scale with your project.

Precision Checking Fixtures and Welding Jigs

Quality assurance is only as reliable as the inspection tools used to verify it. Dian Stamping designs and manufactures high-precision checking fixture solutions that comply with GD&T standards, enabling rapid, repeatable dimensional verification of stamped components and assemblies. Press dies and checking fixtures are delivered as a matched set, ensuring that measurement reference aligns perfectly with the production tooling.

Complementing its inspection solutions, the company also offers custom welding jigs and assembly fixtures designed for robotic MIG welding, spot welding, and manual welding processes. These fixtures ensure repeatable positioning and weld quality across every production cycle, reducing scrap rates and rework.

Application Expertise Across Critical Automotive Systems

Dian Stamping has developed deep domain expertise across a broad spectrum of automotive applications. The company's portfolio includes tooling and components for body-in-white systems, door systems, seating systems, instrument panels, exhaust systems, chassis systems, fuel tank systems, and clutch systems. This breadth of experience means that when you bring a new project to Dian Stamping, you are not starting from scratch — you are building on a foundation of proven solutions for similar challenges.

Why Dian Stamping Stands Out as a Manufacturing Partner

Fast and Reliable Delivery

In the automotive industry, time is money. Dian Stamping offers typical delivery timelines of 30–40 days for steel stamping dies and approximately 70 days for casting stamping dies, depending on project complexity. The company also offers prototype services, working from 2D drawings, 3D data, or physical samples to accelerate your product development cycle.