In the world of precision manufacturing, the quality of your tooling determines the quality of your final product. Whether you are producing structural body panels for electric vehicles or intricate brackets for home appliances, partnering with the right metal stamping dies manufacturer can mean the difference between consistent, high-volume output and costly production delays. DIAN STAMPING — operating under LINHAI DIAN MOULD CO., LTD — has spent more than two decades building a reputation as a reliable, one-stop partner for automotive OEMs and industrial manufacturers worldwide.

Two Decades of Die Engineering Excellence

Founded in 2003 in Huangyan, Taizhou, Zhejiang Province, DIAN STAMPING has grown from a specialized tooling workshop into a full-scale manufacturing facility covering approximately 50,000 square meters. With a dedicated die workshop of 4,000 square meters and a team of around 110 employees — including 35 experienced die designers and technicians — the company produces an annual capacity of roughly 2,000 sets of medium and small stamping dies, with an annual die turnover of approximately RMB 50 million.

Unlike many suppliers that rely on subcontractors for critical processes, DIAN STAMPING handles every stage of production in-house: tool and die design, precision machining, sheet metal stamping, welding, powder coating, assembly, and final inspection. This vertically integrated approach gives clients full traceability, shorter lead times, and consistent quality control across every batch.

Comprehensive Product Portfolio for Automotive and Industry

DIAN STAMPING's product offering spans four core categories, each designed to serve the rigorous demands of automotive, aerospace, electronics, and home appliance manufacturing:

Stamping Dies — The company specializes in progressive, transfer, and tandem dies for complex automotive and industrial parts. These precision-engineered tools are designed for high-volume production with tight tolerances, covering body-in-white, door systems, seating systems, chassis systems, and more. As leading stamping die manufacturers, they deliver tooling solutions that maximize uptime and part consistency.

Sheet Metal Parts — From prototype development to high-volume production, DIAN STAMPING manufactures custom metal stamped components for automotive systems, electrical appliances, and hardware products. Material capabilities include multiphase steel, aluminum, stainless steel, and custom rolled steel, with secondary operations such as laser cutting, bending, welding, and powder coating all available under one roof.

Checking Fixtures — Precise inspection is critical in automotive quality assurance. DIAN STAMPING designs and builds GD&T-oriented checking fixtures that allow rapid, repeatable dimensional verification of stamped parts and welded assemblies, eliminating individual measurement variation and ensuring every part meets OEM specifications.

Welding Jigs — Custom welding fixtures and jigs are engineered to hold components in precise alignment during welding, guaranteeing repeatable, high-quality welds for sub-assemblies and structural components. These jigs are designed in close coordination with the stamping dies and checking fixtures to create a seamless production workflow.

Trusted by Global Automotive OEMs

Perhaps the strongest testament to DIAN STAMPING's quality is its client roster. The company serves as a key supplier to globally recognized automotive brands including KIA, BYD, Toyota, Honda, Suzuki, and Geely. These partnerships, built over years of consistent delivery, span multiple vehicle platforms and component systems — from seat structures and door reinforcements to fuel tank brackets and exhaust system components.

With exports reaching more than 10 countries, DIAN STAMPING brings a global perspective to every project while maintaining the cost advantages of factory-direct pricing. Clients benefit from direct communication with the engineering and production teams, eliminating the markup and information loss that often comes with trading company intermediaries.

Certified Quality, Backed by Innovation

DIAN STAMPING operates under a quality management framework certified to IATF 16949 and ISO 9001 standards, with additional TUV certification. These credentials are not just wall badges — they reflect a systematic approach to defect prevention, process control, and continuous improvement that is essential for automotive supply chains.

The company is recognized as a National High-Tech Enterprise and a Zhejiang Provincial Technology-based SME, with a dedicated High-Tech R&D Laboratory and a growing portfolio of patented technologies. These innovations are directly applied to die design, material processing, and production methods, giving clients access to proprietary advancements that improve part quality and production efficiency.

Scalable Production with End-to-End Services

DIAN STAMPING's existing facility spans approximately 50,000 m², and a new 35,000 m² facility is under development, featuring additional press lines and advanced coating lines. This expansion will further increase the company's capacity to serve growing demand from both domestic and international clients.

The company's one-stop full-industry-chain service model covers mold design and development, sheet metal stamping, welding processing, powder coating, and finished product assembly. For non-standard OEM/ODM projects, DIAN STAMPING accepts designs from 2D drawings, 3D data, or physical samples, and offers free prototyping and sampling services. Typical lead times are 30–40 days for steel stamping dies and approximately 70 days for casting stamping dies, depending on project complexity.

As a specialist in automotive stamping dies, DIAN STAMPING applies its expertise across eight major vehicle systems: body-in-white, door systems, seating systems, instrument panels, fuel tanks, exhaust systems, clutch systems, and chassis systems. This breadth of experience means that whether you need a progressive die for a complex structural part or a high-volume stamping run for a simple bracket, the engineering team has likely solved a similar challenge before.

Why Choose DIAN STAMPING?

In a market crowded with tooling suppliers, DIAN STAMPING differentiates itself through a combination of scale, experience, and direct factory service:

• 20+ years of specialized die and stamping experience

• 50,000 m² production base with in-house capabilities across the entire value chain

• 110 employees including 35 engineers and technicians dedicated to die design and process improvement

• 2,000 die sets/year production capacity for medium and small stamping dies

• IATF 16949 and ISO 9001 certified quality systems

• Global OEM clients including KIA, BYD, Toyota, Honda, Suzuki, and Geely

• Free tooling and sampling for qualified project inquiries

• No outsourcing — full control over quality, cost, and delivery