The global automotive industry depends on precision-engineered tooling and high-quality metal components to meet increasingly demanding safety, performance, and cost targets. From body-in-white structures to seating systems, door panels, and chassis components, the quality of automotive stamping dies directly determines the dimensional accuracy, consistency, and durability of every stamped part. Choosing the right manufacturing partner is therefore one of the most critical decisions for OEMs and Tier suppliers alike.

LINHAI DIAN MOULD CO., LTD (Dian Stamping Company), established in 2003 and headquartered in Taizhou, Zhejiang Province, China, has been serving automotive manufacturers worldwide for more than two decades. The company has built a strong reputation as a one-stop, cost-competitive manufacturing partner offering stamping dies, sheet metal parts, checking fixtures, and welding jigs under one roof.

Company Overview and Manufacturing Scale

With a modern facility covering approximately 50,000 m² and a dedicated die workshop of 4,000 m², Dian Stamping is equipped to handle projects of varying complexity and volume. The company employs around 110 skilled professionals, including approximately 35 die designers and technicians. Its annual capacity reaches about 2,000 sets of medium and small stamping dies, with an annual die turnover of approximately RMB 50 million.

Dian Stamping is currently expanding its production footprint with a planned new 35,000 m² facility featuring advanced press lines and coating lines, further strengthening its manufacturing capabilities. The company serves OEM customers including KIA, BYD, Toyota, Honda, Suzuki, and Geely, and exports to more than 10 countries worldwide.

Precision Stamping Dies for Complex Automotive Parts

Dian Stamping specializes in the design and manufacture of automotive stamping dies across multiple configurations, including progressive dies, transfer dies, and tandem (multi-station) dies. These tooling solutions are applied to a wide range of automotive sub-systems such as body-in-white, door systems, seating systems, instrument panels, fuel-tank systems, exhaust systems, clutch systems, and chassis systems.

The company processes a diverse range of materials including multiphase steel, aluminum alloys, custom rolled and welded plate, and stainless steel. With a team of experienced die designers using industry-standard CAD/CAM software, Dian Stamping delivers tooling that meets tight tolerances and produces consistent, high-quality stamped parts throughout the production run.

Typical delivery timelines are 30–40 days for steel stamping dies and approximately 70 days for casting stamping dies, subject to project complexity and requirements. Prototype services are also available to support new vehicle program development.

Sheet Metal Parts and Custom Fabrication

Beyond tooling, Dian Stamping offers comprehensive sheet metal stamping dies and production services for automotive and household-appliance applications. The company produces custom metal parts, welding assemblies, and fabricated components with capabilities including stamping, laser cutting, bending, forming, and powder coating.

Application areas span automotive body panels, brackets, hinges, structural reinforcements, and household appliance components such as refrigerator brackets, evaporator panels, and heat sinks. Dian Stamping provides end-to-end solutions from prototyping to mass production, ensuring cost-efficiency and reliability for both automotive and industrial customers.

Checking Fixtures for Rigorous Quality Assurance

A checking fixture is an essential tool in production environments for verifying that manufactured workpieces conform to specified dimensions. Dian Stamping designs and builds high-precision checking fixtures based on GD&T standards, enabling fast and reliable inspection of stamped components and welded assemblies. These fixtures eliminate individual measurement variations and ensure that every part meets the required quality standards before proceeding to the next stage of production.

Press dies and checking fixtures are always required as a set. Dian Stamping provides both, ensuring seamless integration between tooling and inspection. This integrated approach reduces lead times, minimizes quality risks, and gives customers confidence in every shipment.

Welding Jigs for Precision Assembly

Dian Stamping also manufactures custom welding jigs designed for accurate, repeatable positioning during welding and assembly operations. These fixtures support automotive and industrial production lines, enabling consistent weld quality, reduced cycle times, and lower rework rates. Whether for spot welding, MIG welding, or TIG welding, the company's welding jigs are tailored to each customer's specific part geometry and production requirements.

Quality Management and Certifications

Dian Stamping operates under a quality management system aligned with ISO 9001 standards and follows IATF 16949-oriented automotive manufacturing practices. The company emphasizes precision engineering, in-process quality control, and continuous improvement to meet the demanding requirements of global automotive OEMs and Tier suppliers.

As a direct factory rather than a trading company, Dian Stamping offers factory-direct pricing, full customization from 2D drawings, 3D data, or physical samples, and free metal samples upon request (with freight paid by the customer). This direct manufacturing model ensures better communication, faster turnaround, and more competitive pricing.

Why Choose Dian Stamping?

Dian Stamping differentiates itself through several key advantages:

• One-Stop Service: Stamping dies, sheet metal parts, checking fixtures, and welding jigs from a single source.

• Over 20 Years of Experience: Established in 2003 with a proven track record serving global OEMs.

• Large-Scale Manufacturing: 50,000 m² facility with expansion underway, supporting high-volume production.

• Cost-Effective Solutions: Factory-direct pricing without intermediary markups.

• Full Customization: From concept to production, working from your drawings, data, or samples.

• Global Reach: Exports to more than 10 countries with reliable logistics and delivery.