With over two decades of experience, a 50,000 m² facility, and a track record serving KIA, BYD, Toyota, and Honda, DIAN Stamping delivers more than tooling — it delivers manufacturing partnership.

When sourcing automotive stamping dies, procurement and engineering teams face a common challenge: finding a supplier that combines precision tooling capability with the scale, quality systems, and end-to-end services needed to support high-volume production programs. In a market crowded with small workshops and trading companies, identifying a genuine manufacturing partner requires looking beyond the sales pitch at the actual facility, certifications, and customer track record.

LINHAI DIAN MOULD CO., LTD (DIAN Stamping), established in 2003 in Huangyan, Taizhou, Zhejiang Province, has built its reputation over more than 20 years by serving precisely this need. Operating from a modern facility covering approximately 50,000 m² with a dedicated die workshop of 4,000 m², the company positions itself as a factory-direct, one-stop manufacturing partner for automotive OEMs and Tier suppliers worldwide.

Manufacturing Scale That Backs Every Quote

One of the distinguishing factors of DIAN Stamping is its production capacity. With around 110 employees including approximately 35 die designers and technicians, the company achieves an annual output of about 2,000 sets of medium and small stamping dies. Its reported annual die turnover of approximately RMB 50 million reflects the scale of operations that few competitors can match.

A planned new 35,000 m² facility featuring state-of-the-art press and coating lines is already underway, signalling the company's commitment to expanding its capacity and capabilities to meet growing global demand. This level of investment in physical infrastructure is a reliable indicator of a manufacturer's long-term stability and its ability to support multi-year production programs.

A Full Spectrum of Die Technologies

DIAN Stamping offers a comprehensive range of die technologies designed to cover the full lifecycle of automotive part production. The company specialises in progressive die stamping, transfer dies, and tandem or multi-station dies, each suited to different part geometries, volume requirements, and material specifications.

Progressive dies are particularly well-suited for high-volume production of complex parts, where multiple forming operations are performed in a single press stroke. Transfer dies, on the other hand, handle larger and more intricate components that require inter-station movement. This technical breadth means that DIAN can serve a wide range of application areas, including body-in-white, door systems, seating systems, instrument panels, fuel-tank systems, exhaust systems, clutch systems, and chassis systems.

Beyond Dies: Four Integrated Service Lines

Unlike many stamping die manufacturers that focus exclusively on tooling, DIAN Stamping offers a vertically integrated service model that extends well beyond the press. The company's capabilities are organised into four distinct but interconnected product lines:

1. Stamping Dies — Precision progressive, transfer, and tandem tooling for complex automotive and industrial parts, covering 65 product listings on the company website.

2. Sheet Metal Parts — High-volume production of automotive and household-appliance stampings, including custom metal parts, welding assemblies, and laser-cut components.

3. Checking Fixtures — High-precision, GD&T-oriented inspection fixtures that verify dimensional accuracy of stamped components and assemblies. A checking fixture is essential for eliminating individual measurement variations and ensuring consistent quality across large production runs.

4. Welding Jigs — Custom positioning fixtures for accurate, repeatable welding and assembly operations, supporting both manual and automated welding processes.

This integrated approach means that a single supplier can manage the entire value chain from tool design and manufacture through part stamping, inspection, and assembly — reducing supply chain complexity, lead times, and cost for OEM buyers.

Quality Systems and OEM Credentials

DIAN Stamping operates under an ISO 9001 quality management system and follows IATF 16949-oriented automotive manufacturing practices. The company's customer roster includes leading global OEMs such as KIA, BYD, Toyota, Honda, Suzuki, and Geely, with exports reaching more than 10 countries. These credentials are not merely marketing claims — they reflect the rigorous qualification processes that automotive OEMs require their suppliers to pass, including on-site audits, production-part approval processes (PPAP), and continuous quality monitoring.

Customisation is available from 2D drawings, 3D data, or physical samples, and prototype services are offered to support new vehicle program development. Typical delivery times are 30 to 40 days for steel stamping dies and approximately 70 days for casting stamping dies, subject to project-specific requirements.

Factory-Direct Pricing Without Compromise

DIAN Stamping identifies itself as a factory, not a trading company. This distinction is critical for buyers seeking competitive pricing without sacrificing quality. By controlling the entire manufacturing process in-house — from die design and machining to tryout and production — the company eliminates middleman markups while maintaining direct oversight of quality and delivery schedules.

Free metal samples are available for evaluation, with freight paid by the customer. This allows prospective buyers to assess material quality, surface finish, and dimensional accuracy before committing to full-scale production.