Finding a reliable partner for automotive tooling and metal stamping is one of the most critical decisions an OEM or Tier 1 supplier can make. The right manufacturer brings not only competitive pricing but also engineering depth, consistent quality, and the ability to scale production as demand grows. For more than two decades, LINHAI DIAN MOULD CO., LTD (DIAN STAMPING) has been delivering precisely that — a comprehensive, factory-direct stamping solution that spans the entire manufacturing chain from die design to finished assembly parts.

A Foundation Built on Experience and Scale

Established in 2003 in Huangyan, Taizhou, Zhejiang Province, DIAN STAMPING operates a modern facility covering approximately 50,000 m², including a dedicated die workshop of 4,000 m². The company employs around 110 skilled professionals, among them roughly 35 die designers and technicians. This infrastructure supports an annual production capacity of approximately 2,000 sets of medium and small stamping dies, with an annual die turnover of around RMB 50 million. A planned 35,000 m² expansion featuring new press and coating lines will further strengthen manufacturing capacity in the near future.

Comprehensive Progressive Die Stamping Capabilities

At the core of DIAN STAMPING's offering is a full suite of die manufacturing technologies. The company specializes in progressive dies, transfer dies, and tandem or multi-station dies, all designed to handle complex automotive geometries with tight tolerances. Whether the requirement is a high-volume body-in-white component, a seating system bracket, or a precision chassis part, the engineering team brings deep experience across multiple material types — including multiphase steel, aluminum alloys, custom rolled and welded plate, and stainless steel.

DIAN STAMPING's die design and manufacturing process is fully integrated in-house: from concept and 3D modeling to CNC machining, die assembly, and tryout. This vertical integration means shorter lead times, better cost control, and direct accountability at every stage of production.

Automotive Stamping Dies for Every Application

DIAN STAMPING's portfolio of automotive stamping dies covers a broad range of vehicle systems. The company has delivered tooling solutions for:

• Body-in-White — Side frames, rear outer panels, A-pillar reinforcements, spare tire wells, and battery cases
• Door Systems — Hinge reinforcement plates, water-cut reinforcement panels, middle gates, and guides
• Seating Systems — Seat basins, support beams, B-pillar liners, and floor panels
• Instrument Panels, Exhaust Systems, Chassis Systems — Heat shields, flow channels, control arms, and swing arm assemblies

Each die is engineered to meet the specific dimensional and performance requirements of the customer's production program, with options for prototypes, low-volume pilot runs, and high-volume mass production.

Beyond Dies: Sheet Metal Parts, Checking Fixture, and Welding Jigs

DIAN STAMPING is not just a die shop — it is a one-stop manufacturing partner. The company offers end-to-end services that include:

• Sheet Metal Parts — Custom stamping, bending, forming, and laser cutting for automotive and household appliance applications, with materials ranging from cold-rolled steel and galvanized steel to aluminum and stainless steel.
• Checking Fixtures — High-precision, GD&T-oriented inspection fixtures that enable fast, repeatable dimensional verification of stamped components. Checking fixtures are designed in parallel with production dies to ensure seamless quality control on the shop floor.
• Welding Jigs and Fixtures — Custom welding positioning tools for accurate, repeatable assembly, supporting spot welding, arc welding, and robotic welding processes.

Quality Management and Certifications

Quality is embedded in every step of DIAN STAMPING's manufacturing process. The company operates under an ISO 9001 quality management system and follows IATF 16949-oriented automotive manufacturing practices. In-process inspections, final dimensional validation using CMM and 3D scanning, and rigorous tryout procedures ensure that every die and part meets the customer's specifications before shipment.

Free metal samples are available upon request (freight paid by the customer), allowing potential partners to evaluate quality firsthand before committing to full production.

Global Customer Base and Proven Track Record

DIAN STAMPING's customer list includes major automotive OEMs such as KIA, BYD, Toyota, Honda, Suzuki, and Geely. The company exports to more than 10 countries, serving both OEMs and Tier suppliers with die tooling, production stampings, and inspection fixtures. This global footprint is a testament to consistent quality, competitive factory pricing, and reliable delivery performance.

Typical lead times are 30–40 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, giving engineers the flexibility to work with the format they prefer.

Why Partner with DIAN STAMPING?

• Factory-Direct Pricing — As a manufacturing factory, not a trading company, DIAN STAMPING offers competitive pricing without intermediary markups.
• 20+ Years of Experience — Since 2003, the company has built deep expertise in automotive tooling and metal stamping.
• Full Vertical Integration — Design, die manufacturing, stamping, welding, and inspection all under one roof.
• Scalable Capacity — 2,000 sets of dies per year, with ongoing expansion to meet growing demand.
• Global Quality Standards — ISO 9001 certified, with IATF 16949-oriented practices and advanced inspection equipment.
• Proven OEM Partnerships — Supplying KIA, BYD, Toyota, Honda, Suzuki, Geely, and more.