Finding a manufacturing partner who can take your design from an early-stage prototype to high-volume production—without switching suppliers mid-stream—is one of the most critical decisions an automotive engineer or procurement manager can make.
For automotive OEMs and Tier suppliers sourcing from Asia, the challenge is compounded by distance, communication barriers, and fragmented supply chains. Many Chinese factories specialize in either tooling or production, but rarely both. When a supplier can only handle one part of the process, the buyer bears the risk of coordinating multiple vendors, repeating design transfers, and absorbing quality gaps between handoffs.
DIAN STAMPING, the brand of LINHAI DIAN MOULD CO., LTD based in Taizhou, Zhejiang, was built to solve exactly this problem. With over 20 years of experience serving global automotive brands including KIA, BYD, Toyota, Honda, Suzuki, and Geely, the company operates as a fully integrated manufacturer of stamping dies, sheet metal parts, checking fixtures, and welding assemblies—all under one roof.
Why Prototype to Production Capability Matters
In automotive manufacturing, the journey from a concept drawing to a production-ready part involves multiple stages: feasibility analysis, die design, prototype tooling, sample production, dimensional validation, and finally mass production. Each stage requires specialized expertise and equipment. A supplier that can only handle production tooling but lacks prototype capability forces the buyer to engage a separate prototyping shop, adding cost, time, and coordination risk.
DIAN STAMPING offers seamless prototype sheet metal parts and production services under one operation. Whether you need a handful of samples for design validation or full-scale production runs, the company's integrated facility allows for rapid iteration and a smooth transition from prototype to production without the typical handoff headaches.
A Facility Built for Scale
DIAN STAMPING occupies a modern manufacturing campus of approximately 50,000 m², including a dedicated die workshop of 4,000 m². The company employs around 110 people, of whom approximately 35 are die designers and technicians. This ratio of design talent to production staff reflects the company's engineering-first approach—a philosophy that ensures every die is designed with manufacturability, durability, and cost efficiency in mind.
The facility is capable of producing approximately 2,000 sets of medium and small stamping dies annually, with a reported annual die turnover of approximately RMB 50 million. A new 35,000 m² facility is underway, featuring additional press lines and coating capabilities, further expanding capacity for growing customer demand.
Facility Size: 50,000 m² total, with 4,000 m² dedicated die workshop
Team: 110 employees, including 35 die designers and technicians
Annual Die Capacity: ~2,000 sets of medium and small stamping dies
New Facility: 35,000 m² expansion with new press and coating lines
Comprehensive Die Manufacturing: The Foundation of Quality Parts
The quality of any stamped sheet metal part begins with the die. DIAN STAMPING designs and builds all types of stamping tooling in-house, including progressive dies, transfer dies, and tandem dies. The company's expertise in progressive die stamping is particularly valuable for high-volume automotive applications, where multiple operations—blanking, forming, punching, coining, and cutoff—are combined into a single, efficient press stroke.
Using advanced CAD/CAM software including AutoCAD, SolidWorks, and CATIA, the design team creates tooling that is optimized for both dimensional accuracy and production throughput. The dies are manufactured in-house using precision CNC machining centers, followed by rigorous tryout and validation before any production parts are run.
For customers who need custom sheet metal parts, this in-house die capability means faster turnaround, lower tooling costs, and better control over part quality—because the same team that designs the die also validates the stamped output.
Beyond Stamping: Integrated Services That Reduce Supply Chain Risk
What sets DIAN STAMPING apart from typical stamping suppliers is its breadth of in-house capabilities. In addition to stamping dies and sheet metal parts, the company manufactures checking fixtures and welding jigs, and offers welding assembly, laser cutting, bending, and powder coating services. This vertical integration means that a single supplier can manage the entire value chain—from die design and part stamping to dimensional inspection and final assembly.
The checking fixtures are designed to GD&T standards, enabling rapid, repeatable dimensional verification of stamped components. Delivered as a matched set with the press dies, these fixtures ensure that every part produced conforms to the customer's specifications before it leaves the factory floor.
For assembled components, the in-house welding jig and robotic MIG welding capabilities allow DIAN STAMPING to deliver complete welded assemblies, reducing the need for customers to manage multiple Tier 2 suppliers.
Material Versatility: From Multiphase Steel to Aluminum
Modern automotive designs increasingly call for advanced materials. DIAN STAMPING has the equipment and process expertise to work with a wide range of materials, including multiphase (AHSS) steel, aluminum alloys, custom rolled and welded plate, and stainless steel. This material versatility is critical as automakers pursue lightweighting strategies and adopt aluminum for body panels, battery enclosures, and structural components.
The company's ability to handle both traditional steel stamping and advanced aluminum forming makes it a flexible partner for customers developing next-generation vehicles, including electric vehicles (EVs) that require lightweight yet durable stamped components.
Application Expertise Across Automotive Systems
DIAN STAMPING's components are used across a wide range of automotive systems, reflecting the company's deep understanding of vehicle manufacturing requirements:
- • Body-in-White systems — structural stampings and assemblies
- • Door systems — inner and outer panels, reinforcements
- • Seating systems — seat frames, brackets, and adjuster components
- • Instrument panel and dashboard systems — structural brackets and supports
- • Exhaust systems — heat shields, brackets, and flanges
- • Chassis systems — suspension components and mounting brackets
- • Fuel tank and clutch systems — precision-formed components
Quality Management and Certifications
DIAN STAMPING operates its quality management system under ISO 9001, with manufacturing practices aligned to IATF 16949 standards for automotive production. The combination of in-house checking fixture capability and rigorous quality control procedures ensures that every shipment meets the dimensional and material specifications agreed upon at the project kickoff.
The company serves customers in more than 10 countries, and its export experience means it is well-versed in international packaging, documentation, and shipping requirements. Typical delivery timelines are 30–40 days for steel stamping dies and approximately 70 days for casting stamping dies, depending on project complexity.
Why Global Automotive Buyers Choose DIAN STAMPING
For automotive OEMs and Tier suppliers looking for a reliable China-based manufacturing partner, DIAN STAMPING offers a combination that is hard to find in a single supplier:
True vertical integration — dies, stamping, fixtures, welding, and coating under one roof
20+ years of automotive experience — established in 2003, serving global OEMs
Factory-direct pricing — no trading company markups, no middlemen
Engineering depth — 35 die designers on staff, using AutoCAD, SolidWorks, and CATIA
End-to-end support — from prototype to production, from 2D drawings to finished parts
Fast delivery — 30–40 days for steel stamping dies
Ready to Start Your Next Project?
Whether you are developing a new vehicle platform, sourcing replacement tooling, or looking for a long-term production partner, DIAN STAMPING is ready to discuss your requirements. Send your 2D drawings, 3D data, or physical samples to the team for a competitive quote. Contact DIAN STAMPING today at www.dastamping.com or email rita@xuhuimould.com to speak with an experienced engineer about your project.