Finding a manufacturing partner that can handle every stage of production — from tooling design to high-volume stamping, inspection, and assembly — is no small task. Automotive OEMs and Tier suppliers face mounting pressure to reduce lead times, control costs, and maintain uncompromising quality across complex supply chains. That is precisely where LINHAI DIAN MOULD CO., LTD (Dian Stamping) stands apart.

A One-Stop Shop for Automotive Metal Forming

Unlike many suppliers that specialize in only one segment of the production chain, Dian Stamping offers a fully integrated service portfolio. This means you can source automotive stamping dies, production stamping, checking fixtures, welding jigs, and assembly services from a single factory — eliminating the coordination overhead, quality gaps, and logistics friction that come with managing multiple vendors.

The company's core capabilities span four main areas:

• Stamping Dies — Progressive dies, transfer dies, and tandem dies designed and built in-house using AutoCAD, SolidWorks, and CATIA for complex medium-to-large parts.
• Sheet Metal Parts — High-volume production of stamped components for automotive body systems, chassis, seating, exhaust, fuel tanks, and more. Capabilities include laser cutting, bending, welding, and powder coating.
• Checking Fixtures — GD&T-compliant inspection fixtures delivered as matched sets with press dies, enabling rapid and repeatable dimensional verification.
• Welding Jigs & Assembly Fixtures — Custom jigs and fixtures supporting robotic MIG welding, spot welding, and manual welding for precise, repeatable assembly.

The Vertical Integration Advantage

Dian Stamping operates as a true factory, not a trading company. Every die is designed, machined, assembled, and tested under one roof. This vertical integration delivers tangible benefits:

• Faster turnaround — In-house design and manufacturing eliminate back-and-forth between separate tool shops and stamping plants. Typical delivery is 30–40 days for steel stamping dies and approximately 70 days for casting dies.
• Lower cost — Factory-direct pricing with no intermediary margins. The company's annual die turnover of approximately RMB 50 million reflects a lean, high-volume operation.
• Consistent quality — ISO 9001-certified quality management system with IATF 16949-oriented automotive manufacturing practices. A dedicated die workshop of 4,000 m² houses around 35 die designers and technicians.
• Material versatility — Proven capability with multiphase steel, aluminum, custom rolled and welded plate, and stainless steel — covering the full spectrum of modern automotive material requirements.

Precision Tooling for Complex Automotive Applications

Dian Stamping's tooling expertise extends across nearly every major automotive subsystem. The company has delivered stamping dies and production parts 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 whether you need a checking fixture for a new door panel or a complete progressive die set for a chassis component, the engineering team has likely solved a similar challenge before.

The company also offers prototype services and accepts custom orders from 2D drawings, 3D data, or physical samples — making it an accessible partner for both new product introductions and production ramp-ups.

Global Trust, Local Efficiency

Dian Stamping's customer roster reads like a who's who of global automotive manufacturing. The company counts KIA, BYD, Toyota, Honda, Suzuki, and Geely among its clients and exports to more than 10 countries worldwide. This level of OEM trust does not come easily — it reflects consistent on-time delivery, adherence to strict quality standards, and the ability to scale production from prototypes to high-volume runs without compromising precision.

New Facility, Expanded Capacity

Dian Stamping is currently commissioning a new 35,000 m² facility featuring advanced press lines and coating equipment. Once operational, this expansion will significantly increase the company's production capacity for both dies and stamped parts, further reducing lead times and enabling even larger-scale projects. For buyers looking to secure a long-term, scalable supply partner, this investment signals a commitment to growth and reliability.

Why Choose Dian Stamping?

In a market where custom sheet metal parts and precision tooling are increasingly commoditized, the differentiator is trust — knowing that your supplier can deliver on time, to spec, and at a fair price, without surprises. Dian Stamping combines the scale of a large manufacturer with the responsiveness of a family-owned enterprise. The company's factory-direct model, 20+ years of die and stamping experience, and multi-OEM qualification make it a compelling choice for automotive buyers worldwide.