A Foundation Built on Two Decades of Experience

Established in 2003 in Huangyan, Taizhou, Zhejiang Province, stamping die manufacturers Dian Stamping (LinHai Dian Mould Co., Ltd.) has spent over 20 years refining its craft. What began as a specialized tooling workshop has grown into a comprehensive manufacturing partner serving some of the world's most recognized automotive brands. The company's 50,000 m² modern facility — including a dedicated 4,000 m² die workshop — houses a team of approximately 110 employees, with 35 skilled die designers and technicians driving the engineering backbone.

This scale of operation positions Dian Stamping among the more capable mid-to-large automotive stamping dies manufacturers in China. The company's annual capacity of approximately 2,000 sets of medium and small stamping dies, paired with an annual die turnover of roughly RMB 50 million, speaks to both the depth of its production capability and the trust it has earned from the market.

Four Core Capabilities, One Seamless Workflow

What sets Dian Stamping apart from conventional tooling shops is its vertically integrated service model. The company offers four interconnected product and service categories that span the entire manufacturing lifecycle:

Stamping Dies. The core of the business. Dian Stamping designs and manufactures progressive dies, transfer dies, and tandem dies for large and medium-sized complex automotive parts. Applications span body-in-white, door systems, seating systems, instrument panels, fuel-tank systems, exhaust systems, clutch systems, and chassis systems. The die shop handles multiphase steel, aluminum alloys, custom rolled and welded plate, and stainless steel — covering the full range of modern automotive material requirements.

Sheet Metal Parts. Beyond tooling, Dian Stamping produces stamped and fabricated sheet metal components for both automotive and household-appliance applications. From chassis seats and suspension components to brackets and structural panels, the company supports high-volume production runs with consistent quality.

Checking Fixtures. Every checking fixture Dian Stamping builds is designed to verify part geometry against GD&T standards, enabling rapid inspection of large volumes of stamped components. These fixtures eliminate the individual measurement variations that plague manual inspection processes, making them indispensable at production sites where speed and accuracy are non-negotiable.

Welding Jigs. Completing the one-stop proposition, Dian Stamping provides custom welding fixtures that ensure accurate, repeatable positioning during welding and assembly operations. These jigs are engineered to integrate seamlessly with the stamped parts and checking fixtures produced in-house, creating a fully coordinated manufacturing ecosystem.

Trusted by Global OEMs

A stamping die manufacturer's reputation is ultimately measured by the names on its client list. Dian Stamping has built long-term supply relationships with major automotive OEMs including KIA, BYD, Toyota, Honda, Suzuki, and Geely, and exports its tooling and parts to more than 10 countries. This global footprint demonstrates that the company's quality standards, delivery reliability, and pricing competitiveness meet the rigorous demands of both Asian and international markets.

Quality Systems and Continuous Improvement

Quality at Dian Stamping is governed by an ISO 9001-certified management system, with practices aligned to IATF 16949 automotive standards. The company's engineering team uses CAD, 3D modeling, and advanced simulation tools to optimize die designs before steel is cut, reducing tryout time and minimizing risk. Prototype services are available for new vehicle programs, and the company accepts 2D drawings, 3D data, or physical samples as input for custom projects.

The company is also investing in the future. A planned 35,000 m² facility expansion will feature new press lines and coating capabilities, further increasing capacity and allowing Dian Stamping to take on larger, more complex programs. Typical delivery stands at 30-40 days for steel stamping dies and approximately 70 days for casting stamping dies, depending on project scope.

Why the One-Stop Model Matters

For automotive buyers evaluating stamping die manufacturers, the traditional approach involves sourcing tooling from one supplier, stamped parts from another, and fixtures from a third. This fragmented model creates risks: dimensional mismatches between the die and the checking fixture, misaligned delivery schedules, and duplicated engineering effort.

Dian Stamping's integrated approach eliminates these inefficiencies. The same engineering team that designs the progressive die also defines the checking fixture inspection points and the welding jig locating strategy. The result is a unified manufacturing system where every component — from the die to the fixture to the finished part — is designed to work together from day one. This translates into faster launch cycles, lower total cost of ownership, and fewer quality surprises on the production line.

Factory-Direct Pricing and Global Reach

Dian Stamping operates as a factory, not a trading company. This distinction matters for cost-conscious buyers. By dealing directly with the manufacturer, customers avoid the intermediary markups that inflate tooling budgets. The company's location in Taizhou, Zhejiang — one of China's most established manufacturing hubs — provides access to a mature supply chain for tool steel, standard components, and heat treatment services, further supporting competitive pricing.

Shipping and logistics are handled for both domestic and international customers. Free metal samples may be offered upon request, with freight covered by the customer. The company's English-speaking sales team manages international inquiries and provides technical support throughout the project lifecycle.