When sourcing precision tooling for automotive production, the choice of stamping partner directly impacts part quality, production lead time, and total cost. For over two decades, LINHAI DIAN MOULD CO., LTD (DA Stamping) has been delivering high-precision automotive stamping dies and stamped components to OEMs and Tier-1 suppliers across more than 10 countries. With a 50,000 m² modern facility, a dedicated team of 35 die engineers, and an annual output of approximately 2,000 sets of medium and small stamping dies, DA Stamping offers the scale and expertise that global automotive buyers demand.

Two Decades of Die-Making Excellence

Established in 2003 and headquartered in Huangyan, Taizhou, Zhejiang Province — a region long recognized as a hub for precision manufacturing — DA Stamping has built a reputation that spans KIA, BYD, Toyota, Honda, Suzuki, and Geely. The company's development history reflects a steady progression from basic tooling to complex, multi-station die systems. Today, its 4,000 m² die workshop houses a comprehensive range of CNC machining centers, EDM equipment, and tryout presses, enabling complete in-house die design, manufacturing, and tryout under one roof.

What sets DA Stamping apart among stamping die manufacturers is its vertically integrated approach. The company controls every stage of the production chain — from die design and material selection to machining, assembly, tryout, and final stamping production. This end-to-end capability ensures consistent quality, shorter communication loops, and faster problem resolution compared to partners who outsource portions of their die-making process.

Comprehensive Die and Stamping Capabilities

DA Stamping specializes in three main types of stamping tooling, each suited to different production requirements:

• Progressive Dies — Ideal for high-volume production of complex parts with multiple forming operations. Progressive dies at DA Stamping are designed for tight tolerances and long tool life, with carbide inserts used where wear resistance is critical.
• Transfer Dies — Used for large and medium-sized panels where individual stations require independent process control. Transfer die technology at DA Stamping supports deep-drawn geometries and complex contouring.
• Tandem / Multi-Station Dies — A flexible solution for mid-volume production runs, offering a balance between tooling investment and per-part cost.

Beyond tooling, the company produces a wide range of stamped sheet metal parts applied across body-in-white, door systems, seating systems, instrument panels, fuel-tank systems, exhaust systems, clutch systems, and chassis systems. Material processing capabilities include multiphase steel (AHSS), aluminum alloys, custom rolled and welded plate, and stainless steel — enabling DA Stamping to serve both traditional ICE vehicle programs and new-energy vehicle platforms.

Precision Inspection with Checking Fixtures

Quality assurance is inseparable from precision tooling at DA Stamping. Every stamped component produced from the company's dies must meet stringent dimensional requirements, and that is where checking fixture technology plays a critical role. A checking fixture is a dedicated inspection tool that allows operators to verify whether a manufactured workpiece conforms to its specified dimensions within seconds — simply by placing the part onto the fixture and checking against hard gauges or measurement probes.

DA Stamping designs and builds checking fixtures that follow GD&T (Geometric Dimensioning and Tolerancing) standards, ensuring that even complex freeform surfaces and critical hole patterns are verified with high repeatability. The use of checking fixtures eliminates reliance on individual measurement skill, reducing measurement variation and accelerating the inspection process on production lines. For automotive suppliers shipping thousands of parts per week, a well-designed checking fixture can mean the difference between a smooth production ramp and costly quality escapes.

Welding Jigs and Assembly Fixtures

In addition to stamping dies and inspection fixtures, DA Stamping provides custom welding jigs and assembly fixtures that ensure accurate, repeatable positioning during welding and joining operations. These jigs are designed to minimize distortion, maintain consistent weld gaps, and improve throughput in high-volume welding cells. The company's welding jig portfolio includes fixtures for spot welding, MIG/TIG welding, and robotic welding stations, supporting both body-in-white sub-assemblies and smaller component-level welding tasks.

The integration of stamping dies, checking fixtures, and welding jigs under one supplier means that automotive buyers can source their complete tooling package from a single point of contact — reducing project management overhead, eliminating interface mismatches between tooling types, and shortening the overall time from design to production.

Quality Systems and Certifications

DA Stamping operates under an ISO 9001 quality management system, with manufacturing practices aligned to IATF 16949 automotive standards. The company's quality process covers the full tooling lifecycle:

• Die Design Review — Feasibility analysis using CAE simulation to identify potential forming issues before steel is cut.
• In-Process Inspection — Dimensional checks at every machining stage, with CMM verification for critical features.
• Tryout and Sampling — Full die tryout runs with dimensional reporting on first-article samples.
• Final Approval — Part approval based on customer-specific dimensional and surface-quality standards.

Free metal samples are available for evaluation, with freight paid by the customer — allowing buyers to assess material quality and dimensional accuracy before committing to full production orders.

Customization and Prototyping Services

DA Stamping accepts custom orders based on 2D engineering drawings, 3D CAD data, or physical samples. The company's engineering team — comprising approximately 35 die designers and technicians — works closely with clients to optimize part geometry for manufacturability, recommend material grades, and suggest cost-saving design modifications. Prototype services are available for new-vehicle programs, allowing design validation before mass-production tooling is committed.

Typical delivery timelines are 30-40 days for steel stamping dies and approximately 70 days for casting stamping dies, depending on part complexity and project scope. The company's location in Taizhou, Zhejiang — approximately 200 km from Shanghai's seaport — provides convenient logistics for global shipping by sea or air.

Why Global OEMs Choose DA Stamping

The combination of factors that makes DA Stamping a preferred partner in the competitive world of automotive stamping dies can be summarized in four key areas:

• Factory-Direct Pricing — As a direct manufacturer rather than a trading company, DA Stamping eliminates intermediary margins, offering competitive pricing without sacrificing quality.
• Proven OEM Track Record — With customers including KIA, BYD, Toyota, Honda, Suzuki, and Geely, the company has demonstrated its ability to meet the rigorous quality and delivery standards of global automotive brands.
• One-Stop Service Scope — From stamping dies and sheet metal parts to checking fixtures and welding jigs, DA Stamping provides a complete tooling and production solution under one roof, simplifying supply chain management for buyers.
• Scalable Capacity — With 110 employees, approximately 50,000 m² of facility space, and a planned 35,000 m² expansion featuring new press and coating lines, the company is well-positioned to handle both prototype programs and high-volume production runs.