When sourcing tooling and stamped metal components for automotive production, the choice of manufacturing partner directly impacts cost, quality, and lead time. Global automotive OEMs and Tier suppliers increasingly turn to China for automotive stamping dies and precision sheet metal parts — not just for competitive pricing, but for the engineering depth, production scale, and integrated service chains that established factories can offer. One such manufacturer, LINHAI DIAN MOULD CO., LTD (Dian Stamping), has been serving the industry since 2003 from its headquarters in Linhai, Taizhou, Zhejiang Province.

Over 20 Years of Specialized Experience

With more than two decades of continuous operation, Dian Stamping has built a strong reputation in the automotive tooling sector. The company's client roster includes well-known names such as KIA, BYD, Toyota, Honda, Suzuki, and Geely, with exports reaching more than 10 countries worldwide. This depth of experience means the team understands the rigorous quality standards, tight tolerances, and delivery schedules that automotive projects demand.

Scale and Manufacturing Capabilities

Dian Stamping's current facility covers approximately 50,000 m², with a dedicated die workshop of around 4,000 m². The company employs approximately 110 skilled workers, including roughly 35 die designers and technicians. This scale translates into an annual production capacity of about 2,000 sets of medium and small stamping dies, with an annual die turnover of approximately RMB 50 million.

Looking ahead, the company is developing a new 35,000 m² facility that will feature advanced press lines and coating lines, further expanding its production capabilities. For progressive die stamping and transfer die operations, the factory is equipped to handle a wide range of materials including multiphase steel, aluminum, custom rolled and welded plate, and stainless steel.

A Genuine Factory, Not a Trading Company

One of the key differentiators of Dian Stamping is that it operates as a true factory with full in-house production. The company handles tool and die manufacturing, sheet metal stamping, welding, assembly, powder coating, and finished product assembly under one roof — with zero outsourcing. This vertical integration gives customers direct control over quality, cost, and delivery timelines.

The affiliated companies under the group include Linhai Diyao New Technology Co., Ltd. and Taizhou Elay International Trade Co., Ltd., providing additional support for R&D and international trade operations.

Comprehensive Product and Service Range

Dian Stamping's offerings span the full spectrum of automotive stamping and assembly needs:

• Stamping Dies: Progressive, transfer, and tandem dies for large and medium-sized complex parts, serving body-in-white, door systems, seating systems, and chassis applications.
• Sheet Metal Parts: Custom metal stampings, sheet-metal fabrication, and welding assemblies for automotive and household appliance industries.
• Checking Fixtures: High-precision, GD&T-oriented inspection fixtures for stamped components and assemblies. A checking fixture is essential for verifying that manufactured parts conform to design dimensions, especially when complex geometries make traditional measurement tools impractical.
• Welding Jigs and Assembly: Custom welding fixtures and supporting services for accurate, repeatable production and assembly.

Quality Certifications and Standards

Quality management at Dian Stamping is built on the ISO 9001 framework, with manufacturing practices aligned to IATF 16949 automotive standards. The company has been recognized as a National High-Tech Enterprise and holds multiple certifications including TUV. Its quality-control processes cover every stage from tool design through tryout to production, ensuring that every component meets OEM specifications.

Customization and Prototyping Services

Dian Stamping offers full customization services, accepting designs from 2D drawings, 3D data, or physical samples. Prototype services are available for new product development, and free metal samples can be provided (with freight paid by the customer). Typical delivery times are 30–40 days for steel stamping dies and approximately 70 days for casting stamping dies, subject to project complexity.

Application Areas Across the Vehicle

The company's tooling and stamped parts are used across a wide range of automotive systems, including:

• Body-in-White (BIW) systems
• Door systems
• Seating systems
• Instrument panels and dashboards
• Fuel-tank systems
• Exhaust systems
• Clutch systems
• Chassis systems

Why Partner with Dian Stamping

For automotive OEMs and Tier suppliers looking for a reliable, cost-competitive manufacturing partner, Dian Stamping offers a compelling combination: genuine factory-direct pricing, 20+ years of specialized experience, full in-house production chains, and a commitment to quality that meets international automotive standards. The company's one-stop service model — from die design and development through stamping, welding, coating, and assembly — streamlines the supply chain and reduces coordination overhead.

Whether you need progressive stamping tooling for a new vehicle program, high-volume production of stamped sheet metal parts, precision checking fixtures for quality assurance, or custom welding jigs for assembly lines, Dian Stamping has the engineering expertise and manufacturing capacity to deliver.