Why Vertical Integration Matters in Metal Stamping

When you work with a manufacturer that controls the entire production chain — from die design and tool fabrication to stamping, welding, and assembly — you eliminate the inefficiencies of subcontracting. Communication is faster, quality is more consistent, and costs are lower because there are no middlemen. This is precisely the model adopted by leading stamping die manufacturers who invest in in-house tooling capabilities to serve global automotive OEMs.

DA Stamping, operating under LINHAI DIAN MOULD CO., LTD, has built its reputation on this integrated approach. With over 20 years of industry experience since 2003, the company covers every stage of production — die design, die manufacturing, stamping, welding, inspection, and assembly — all under one roof in its 50,000 m² facility in Taizhou, Zhejiang Province.

Comprehensive Stamping Die Capabilities

The heart of any metal stamping operation is the die. DA Stamping's die workshop spans approximately 4,000 m² and is staffed by around 35 experienced die designers and technicians. The company produces approximately 2,000 sets of medium and small stamping dies annually, with a reported annual die turnover of around RMB 50 million.

Their die portfolio includes three major types tailored to different production needs:

• Progressive Dies — Ideal for high-volume production of complex parts with multiple operations performed in a single press stroke. This progressive die stamping method minimizes handling and maximizes throughput for automotive components.
• Transfer Dies — Designed for larger, more complex parts where the workpiece is transferred between stations by a transfer system, enabling deep draws and intricate geometries.
• Tandem / Multi-Station Dies — Suitable for medium-volume production runs requiring flexibility across different part families.

The company processes a wide range of materials, including multiphase steel, aluminum alloys, custom rolled and welded plate, and stainless steel, giving automotive engineers the flexibility to specify the optimal material for each application.

Custom Sheet Metal Parts: From Prototype to High-Volume Production

Beyond dies, DA Stamping offers comprehensive sheet metal fabrication services for both automotive and industrial applications. Whether you need prototype parts for validation or high-volume production runs, the company's capabilities cover the full spectrum of custom sheet metal parts manufacturing.

The sheet metal parts division serves diverse application areas, including body-in-white (BIW) panels, door system components, seating system structures, instrument panel brackets, fuel-tank and exhaust system parts, clutch system components, and chassis system assemblies. For household appliance manufacturers, the company also produces brackets, hinges, handles, evaporator panels, and structural components for refrigerators, washing machines, and ovens.

Key sheet metal services include laser cutting, bending, forming, deep drawing, welding assembly, and powder coating. Customers can submit 2D drawings, 3D CAD data, or physical samples for custom fabrication, with prototype services available to accelerate product development cycles.

Quality Assurance Through Precision Inspection

In automotive manufacturing, dimensional accuracy is non-negotiable. DA Stamping provides high-precision checking fixture solutions to verify that every stamped part meets the required tolerances. Checking fixtures allow rapid, repeatable inspection of complex geometries that would be difficult to measure with conventional tools like calipers or micrometers.

The company's quality management system is ISO 9001 certified, with practices aligned to IATF 16949 automotive standards. For customers requiring additional assurance, 3D scanning (CMM) and in-line SPC (Statistical Process Control) inspections are available to ensure every shipment meets OEM specifications.

Welding Jigs and Assembly Fixtures for Production Efficiency

DA Stamping also designs and manufactures custom welding jigs and assembly fixtures that ensure accurate, repeatable positioning during welding and assembly operations. These fixtures are critical for achieving consistent weld quality, reducing rework, and maintaining throughput in high-volume production environments. The company supports robotic welding cells, manual welding stations, and assembly lines with purpose-built tooling solutions.

Global Reach and Customer Trust

DA Stamping serves a global customer base, exporting to more than 10 countries. The company's OEM client list includes recognizable names such as KIA, BYD, Toyota, Honda, Suzuki, and Geely — a testament to the quality and reliability of its products. With approximately 110 employees and a planned expansion of an additional 35,000 m² facility featuring new press and coating lines, the company is well-positioned to scale with growing customer demand.

Typical Lead Times and Delivery

DA Stamping offers competitive lead times that reflect its efficient production processes. Steel stamping dies are typically delivered in 30–40 days, while casting stamping dies require approximately 70 days, depending on project complexity and material availability. The company's factory-direct model means customers pay competitive pricing without intermediary markups, and free metal samples are available upon request (with freight paid by the customer).