In the automotive industry, the quality of a vehicle's stamped components directly impacts safety, assembly fit, and long-term durability. Behind every precisely formed body panel, door reinforcement, or chassis bracket lies a carefully engineered stamping die. Choosing the right partner among stamping die manufacturers is therefore a strategic decision that affects production efficiency, part consistency, and total cost of ownership. LINHAI DIAN MOULD CO., LTD (Dian Stamping), established in 2003 in Huangyan, Taizhou, Zhejiang, has built a reputation over more than two decades as a reliable manufacturing partner for global automotive OEMs and Tier 1 suppliers.

A Manufacturer with Proven Scale and Experience

Dian Stamping operates a modern facility covering approximately 50,000 m², including a dedicated die workshop of 4,000 m², with a planned expansion of 35,000 m² featuring new press and coating lines. The company employs around 110 people, including approximately 35 die designers and technicians, and maintains an annual capacity of about 2,000 sets of medium and small stamping dies. With a reported annual die turnover of approximately RMB 50 million, Dian Stamping has the manufacturing scale to support both high-volume production runs and complex custom tooling projects.

Comprehensive Engineering and Design Capabilities

Every precision die begins with rigorous engineering. Dian Stamping's team of experienced designers uses advanced CAD/CAM software to develop tooling solutions for a wide range of automotive stamping dies, including progressive dies, transfer dies, and tandem/multi-station dies. The company processes a diverse range of materials—multiphase steel, aluminum, custom rolled and welded plate, and stainless steel—to meet the specific requirements of each project. Prototype services are available, and customization can be initiated from 2D drawings, 3D data, or physical samples, providing flexibility for customers at any stage of product development.

Precision Manufacturing and Quality Assurance

Quality at Dian Stamping is built into every stage of production. The company's quality management system is ISO 9001 certified, and its manufacturing practices align with IATF 16949-oriented automotive standards. Advanced CNC machining, wire EDM, and surface grinding equipment ensure micron-level accuracy in die components. Skilled toolmakers perform precision assembly, clearance adjustment, and manual fitting to guarantee smooth operation and consistent stamping performance.

Before delivery, every die undergoes trial stamping to verify part dimensional accuracy, burr formation, material flow, and die stability under continuous operation. This systematic approach to quality control ensures that Dian Stamping's dies deliver reliable performance in high-volume production environments.

Beyond Dies: A Complete Production Ecosystem

What sets Dian Stamping apart from many stamping die manufacturers is its ability to provide end-to-end solutions. In addition to precision stamping dies, the company manufactures stamped sheet metal parts, checking fixtures, welding jigs, welding parts, and assembly parts. This integrated approach means that customers can source their tooling, production parts, and inspection fixtures from a single supplier, reducing coordination complexity and accelerating time to market.

Sheet Metal Parts and Welding Assemblies

Dian Stamping produces automotive and household-appliance stampings, sheet-metal fabrication, and custom metal parts. From body-in-white components to door system brackets, seating system parts, instrument panel structures, and exhaust system components, the company's custom sheet metal parts serve a wide range of applications. Welding and assembly services are also available, providing fully finished components ready for integration.

Checking Fixtures for Precision Verification

A stamping die and its checking fixture go hand in hand. Dian Stamping designs and manufactures high-precision checking fixture solutions that enable fast, accurate dimensional verification of stamped components. These GD&T-oriented fixtures help eliminate individual measurement differences and ensure that every part meets the specified tolerances before proceeding to assembly.

Welding Jigs for Repeatable Assembly

For customers requiring welded assemblies, Dian Stamping provides custom welding jigs designed for accurate positioning and repeatable welding operations. These fixtures support consistent production quality in automotive and industrial assembly lines.

Global Customer Base and Industry Applications

Dian Stamping serves OEM customers including KIA, BYD, Toyota, Honda, Suzuki, and Geely, and exports to more than 10 countries. Application areas span body-in-white, door systems, seating systems, instrument panels, fuel-tank systems, exhaust systems, clutch systems, and chassis systems. The company positions itself as a factory-direct partner—not a trading company—offering competitive pricing, direct communication, and long-term supply relationships.

Delivery and Customer Support

Typical delivery times are 30–40 days for steel stamping dies and approximately 70 days for casting stamping dies, subject to project scope and complexity. The company offers free metal samples upon request (with freight paid by the customer), enabling buyers to evaluate quality before committing to full production. As a factory-direct manufacturer, Dian Stamping provides responsive technical support, competitive pricing, and the flexibility to handle both standard and custom-engineered projects.

LINHAI DIAN MOULD CO., LTD | Hongguang Industrial, Yanjian, Linhai, Taizhou, Zhejiang, China
Phone: +86 13325865358 | Email: rita@xuhuimould.com | www.dastamping.com