If you are evaluating a supplier for automotive tooling, one of the first questions you will ask is simple: how long has dastamping been in business? The answer matters because experience in die and stamping is not something that can be acquired quickly. It is built part by part, die by die, and program by program. DIAN STAMPING (Linhai Dian Mould Co., Ltd.) has been in this industry since 2003 — which means the company carries more than two decades of hands-on experience in designing and building precision stamping tooling.

Based in Huangyan, Taizhou, in China's Zhejiang Province, the firm was set up as a specialized tooling shop. Over the years it has grown into a vertically integrated manufacturer of automotive stamping dies, stamped sheet-metal parts, checking fixtures, welding jigs, and assembly parts. Rather than acting as a trading company that simply resells work, DIAN STAMPING operates its own factory floor, which gives customers direct control over quality, lead time, and cost.

A short history of DIAN STAMPING

The company's story starts in 2003, when a small team began manufacturing stamping dies in the Taizhou region. In the early years the focus was on building the tooling fundamentals: understanding material behavior, solving forming challenges, and delivering dies that produced repeatable, accurate parts. That foundation proved to be worth more than any single project, because it became the basis for everything the company builds today.

From that modest starting point, the operation expanded into a modern production campus of approximately 50,000 m². The dedicated die workshop alone covers roughly 4,000 m². Around 110 employees now work across the facility, including about 35 experienced die designers and technicians. With this team, DIAN STAMPING builds roughly 2,000 sets of medium and small stamping dies every year and reports an annual die turnover in the region of RMB 50 million.

Looking ahead, the company is investing in a new 35,000 m² facility fitted with modern press and coating lines. The expansion is driven by a simple fact: the years of experience have opened doors to larger, more demanding programs, and the company intends to keep serving them with in-house capacity rather than subcontracting.

What 20-plus years have allowed the company to do

Longevity is only meaningful if it shows up in capability. Over more than two decades, DIAN STAMPING has developed a one-stop portfolio that covers the full chain from tool design to final part:

• Stamping dies — progressive dies, transfer dies, and tandem or multi-station dies for large and medium-sized complex parts used across body-in-white, door, seating, instrument-panel, chassis, fuel-tank, exhaust, and clutch systems.
• Sheet metal parts — custom stamped and fabricated parts for automotive and household-appliance applications, with options such as laser cutting, bending, forming, welding, and powder coating.
• Checking fixtures — high-precision, GD&T-oriented inspection fixtures that verify dimensional accuracy and remove individual variation from quality control.
• Welding jigs — custom fixtures engineered for accurate, repeatable positioning during spot, TIG, and robotic welding.

This breadth is possible because the engineering team has spent years working across material types and geometries. The company processes multiphase steel, aluminum, custom rolled and welded plate, and stainless steel. For buyers of custom sheet metal parts, that material flexibility translates into fewer forced compromises and more options during design.

Proof of experience: the customers the company serves

One of the clearest signs of a supplier's track record is the caliber of the customers it keeps. More than two decades in business has earned DIAN STAMPING long-term relationships with OEMs such as KIA, BYD, Toyota, Honda, Suzuki, and Geely, and the company now exports to more than 10 countries. These are customers that audit suppliers closely, demand tight tolerances, and enforce strict quality and delivery requirements. That the company has held these relationships for years tells you far more than any brochure claim.

Quality systems support the track record. DIAN STAMPING operates a quality-management system certified to ISO 9001, and its manufacturing practices are aligned with IATF 16949-oriented automotive requirements. In every stamping die manufacturers evaluation, certifications matter, but so does the day-to-day discipline that only comes with years of running real production lines.

How the company's history translates into lead times and pricing

Experience also shows up in practical terms. Because the same team designs the die and runs the stamping, custom work can start directly from a 2D drawing, 3D data, or even a physical sample. Prototype services are available, and free metal samples can be provided with freight paid by the customer. Typical delivery is around 30–40 days for steel stamping dies and about 70 days for casting stamping dies, depending on the project.

As a factory rather than a middleman, DIAN STAMPING also keeps pricing competitive by removing intermediary markups. For a customer sourcing tooling at scale, that combination of factory-direct cost and two decades of engineering know-how is what makes the company's history genuinely useful.

Conclusion

To answer the question directly: dastamping has been in business since 2003, giving it more than 20 years of experience in stamping dies, sheet metal parts, checking fixtures, and welding jigs. For buyers, that history matters because it is written in the parts the company has made, the OEM programs it has supported, and the production lines it keeps running. If you are comparing automotive stamping dies suppliers, DIAN STAMPING is worth a conversation — you can reach the team through the contact page or at rita@xuhuimould.com.