Finding a stamping partner that can handle the full production chain 鈥?from die design to high-volume stamped parts, inspection fixtures, and welded assemblies 鈥?is rare in today's global supply chain. Many manufacturers excel at one piece of the puzzle but struggle to deliver consistent quality across the entire process. That is where DIAN STAMPING (Linhai Dian Mould Co., Ltd) stands apart. With over 20 years of experience serving OEMs including KIA, BYD, Toyota, Honda, Suzuki, and Geely, DIAN offers a truly integrated approach to automotive stamping dies and metal component manufacturing.

A Manufacturing Facility Built for Scale and Precision

Headquartered in Linhai, Taizhou, Zhejiang Province, DIAN operates a modern facility spanning approximately 50,000 m², with a dedicated die workshop of 4,000 m² and a planned 35,000 m² expansion featuring new press lines and coating capabilities. The company employs around 110 skilled professionals, including approximately 35 die designers and technicians. This infrastructure supports an annual capacity of roughly 2,000 sets of medium and small stamping dies and a reported annual die turnover of approximately RMB 50 million.

Unlike many China-based stamping houses that function as trading intermediaries, DIAN is a direct factory 鈥?offering genuine cost advantages without sacrificing quality or lead time.

Comprehensive Stamping Die Capabilities

DIAN's tooling portfolio covers the full spectrum of automotive stamping dies, including progressive dies, transfer dies, and tandem/multi-station dies. The company processes a wide range of materials 鈥?multiphase steel, aluminum alloys, custom rolled and welded plate, and stainless steel 鈥?enabling it to serve diverse applications across body-in-white, door systems, seating systems, instrument panels, fuel-tank systems, exhaust systems, clutch systems, and chassis systems.

Typical lead times are 30鈥?0 days for steel stamping dies and approximately 70 days for casting stamping dies, depending on project complexity. Customization is available from 2D drawings, 3D data, or physical samples, with prototype services offered to accelerate new vehicle program timelines.

Beyond Dies: Full-Service Sheet Metal Fabrication

DIAN's capabilities extend well beyond die making. As a leading provider of custom sheet metal parts, the company offers stamping, welding, laser cutting, and assembly services for both automotive and household appliance industries. From brackets and panels to complex structural reinforcements, DIAN delivers end-to-end solutions from prototyping through mass production.

The company's secondary operations 鈥?including deburring, bending, hemming, flanging, and spot welding 鈥?ensure that parts arrive assembly-ready, reducing downstream handling costs for OEM customers. Material options include stainless steel, aluminum, cold-rolled steel, and galvanized steel, tailored to application-specific requirements.

Precision Quality Assurance with Checking Fixtures

Quality control is a cornerstone of DIAN's manufacturing process. The company designs and builds high-precision checking fixture systems that enable rapid, repeatable inspection of stamped components and welded assemblies. These GD&T-oriented fixtures eliminate individual measurement variation and ensure that every part meets OEM dimensional specifications before shipment.

DIAN's quality management system is ISO 9001 certified, and its manufacturing practices follow IATF 16949-oriented automotive standards. In-line inspections, 3D scanning (CMM), and strain analysis are integrated into production workflows to maintain consistent quality across high-volume runs.

Welding Jigs and Assembly Fixtures

DIAN rounds out its service offering with custom welding jigs and assembly fixtures designed for accurate, repeatable production. These fixtures support a variety of welding processes 鈥?including spot welding, MIG, and TIG 鈥?and are tailored to each customer's specific geometry and production volume requirements.

The Vertically Integrated Advantage

What truly sets DIAN apart is its vertically integrated model. By bringing die design, die manufacturing, metal stamping, welding, assembly, and quality inspection under one roof, the company eliminates the coordination overhead, quality gaps, and cost markups that come with managing multiple suppliers. This integration translates into:

• Faster time-to-market: Simultaneous die development and prototype production reduce overall project lead times.
• Consistent quality: Single-source accountability for tooling, parts, and inspection.
• Cost efficiency: Factory-direct pricing without trading company margins.
• Simplified supply chain: One partner, one point of contact, one set of quality standards.

Global Reach, Local Expertise

With exports to more than 10 countries and a customer roster that includes some of the world's largest automotive brands, DIAN has demonstrated its ability to meet international quality and delivery standards. The company's location in Zhejiang Province 鈥?a major manufacturing hub 鈥?provides access to a mature supply chain, skilled labor, and efficient logistics for both domestic and overseas shipping.