A deep dive into how one integrated manufacturer delivers precision stamping dies, sheet metal parts, checking fixtures, and welding jigs under one roof.
When automotive OEMs and Tier-1 suppliers evaluate a new stamping partner, they are no longer looking for a single-service vendor. The modern supply chain demands a manufacturer that can move seamlessly from die design and fabrication to high-volume stamping, inspection, and welded assembly — all while maintaining tight tolerances, consistent quality, and competitive pricing. This is precisely the gap that progressive die stamping specialist DIAN STAMPING (LINHAI DIAN MOULD CO., LTD) has been filling since 2003.
Headquartered in Huangyan, Taizhou, Zhejiang Province — a region long recognized as a manufacturing hub for precision tooling — DIAN STAMPING has evolved from a dedicated die shop into a full-spectrum manufacturing partner. With over 20 years of industry experience, a 50,000 m² modern facility, and a team of approximately 110 employees including 35 die designers and technicians, the company serves a roster of global automotive clients that includes KIA, BYD, Toyota, Honda, Suzuki, and Geely, with exports reaching more than 10 countries.
The Competitive Edge of Vertical Integration
One of the most significant trends in automotive manufacturing is the shift toward vertically integrated suppliers. Rather than coordinating between separate die makers, stamping houses, and fixture builders, OEMs increasingly prefer a single source that can manage the entire production chain. DIAN STAMPING's business model is built around this philosophy.
The company's capabilities span tool and die manufacturing, sheet metal stamping, welding, assembly, checking fixture fabrication, and welding jig production. This end-to-end approach eliminates the communication gaps, tolerance stacking, and scheduling conflicts that often plague multi-vendor supply chains. When a customer places an order with DIAN STAMPING, the die design, tryout, part production, quality inspection, and final assembly are all managed within the same facility under a unified quality system.
Factory Facts at a Glance:
- Facility area: approximately 50,000 m² (with a new 35,000 m² facility planned, featuring new press and coating lines)
- Die workshop: approximately 4,000 m²
- Annual die capacity: approximately 2,000 sets of medium and small stamping dies
- Annual die turnover: approximately RMB 50 million
- Workforce: approximately 110 employees, including 35 die designers and technicians
Automotive Stamping Dies: Precision Tooling for Complex Components
At the core of DIAN STAMPING's offering is its expertise in automotive stamping dies. The company designs and manufactures three primary die types tailored to different production requirements:
- Progressive Dies — Ideal for high-volume production of complex parts. A single progressive die performs multiple operations (blanking, forming, piercing, trimming) in a single press stroke, maximizing efficiency and minimizing handling.
- Transfer Dies — Used for larger, more intricate components where the workpiece is transferred between individual die stations by a transfer system. Well-suited for deep-drawn parts and multi-step forming sequences.
- Tandem / Multi-Station Dies — Designed for medium-to-large panels and structural components, with each station performing a dedicated operation in sequence.
These dies are applied across a wide range of automotive subsystems, including body-in-white (BIW), door systems, seating systems, instrument panels, fuel-tank systems, exhaust systems, clutch systems, and chassis systems. The company's material processing capabilities include multiphase steel, aluminum alloys, custom rolled and welded plate, and stainless steel — covering the material diversity required by modern vehicle platforms.
Stamped Sheet Metal Parts: From Prototype to High-Volume Production
Beyond die fabrication, DIAN STAMPING operates a full sheet metal stamping production line capable of producing both automotive and household-appliance components. The company's part portfolio includes brackets, panels, hinges, reinforcement plates, heat shields, chassis seats, and structural assemblies. Customers can submit 2D drawings, 3D data, or physical samples for custom part development, with prototype services available for design validation before mass production ramp-up.
The company's quality management system is certified to ISO 9001, with manufacturing practices aligned to IATF 16949-oriented automotive standards. Typical delivery timelines are 30–40 days for steel stamping dies and approximately 70 days for casting stamping dies, subject to project scope and complexity.
Checking Fixtures and Welding Jigs: Completing the Quality Loop
DIAN STAMPING's integrated service model extends to quality assurance and assembly tooling. The company manufactures high-precision checking fixtures designed to GD&T (Geometric Dimensioning and Tolerancing) standards, enabling fast and reliable inspection of stamped components and welded assemblies. A checking fixture allows operators to verify dimensional accuracy of complex parts in seconds — an essential tool for production sites where traditional measurement methods (vernier calipers, micrometers) are impractical.
Complementing the inspection capability, the company also produces custom welding jigs for accurate, repeatable positioning during welding and assembly operations. These fixtures are critical for maintaining consistent weld quality and dimensional stability in high-volume production environments. The combination of stamping dies, sheet metal parts, checking fixtures, and welding jigs under one roof means that DIAN STAMPING can deliver fully validated, assembly-ready components to its customers.
Why OEMs Choose DIAN STAMPING
When evaluating a stamping partner, OEM procurement teams typically weigh several factors: technical capability, production capacity, quality systems, delivery reliability, and cost competitiveness. DIAN STAMPING scores well across all five dimensions:
| Criterion | DIAN STAMPING Strength |
|---|---|
| Technical Capability | 35 in-house die designers, progressive/transfer/tandem die expertise, multi-material processing |
| Production Capacity | 2,000 die sets/year, 50,000 m² facility, new 35,000 m² expansion underway |
| Quality Systems | ISO 9001 certified, IATF 16949-oriented practices, in-line inspection and checking fixtures |
| Delivery Reliability | 30–40 days (steel dies), 70 days (cast dies), prototype-to-production workflow |
| Cost Competitiveness | Factory-direct pricing, vertical integration, Zhejiang-based manufacturing ecosystem |
Perhaps most importantly, DIAN STAMPING operates as a factory — not a trading company. This distinction matters deeply in the automotive supply chain, where buyers need direct access to the production floor, transparent communication on tooling progress, and the ability to audit manufacturing processes in person.
Looking Ahead: Expanded Capacity for Growing Demand
DIAN STAMPING is currently investing in a new 35,000 m² facility that will feature additional press lines and advanced coating capabilities. This expansion reflects the company's commitment to keeping pace with the evolving demands of the automotive industry, particularly as electric vehicle platforms drive new requirements for lightweight materials, complex geometries, and higher precision standards.
For global OEMs and Tier suppliers seeking a reliable, vertically integrated stamping partner, DIAN STAMPING offers a proven track record, factory-direct pricing, and the engineering depth to manage complex programs from prototype through production. The company's 20-year journey from a local die shop to an international automotive supplier illustrates the value of sustained investment in people, equipment, and quality systems.
Ready to Discuss Your Next Stamping Project?
Contact DIAN STAMPING today to discuss your tooling and production requirements. Whether you need a progressive die for a high-volume BIW component, a checking fixture for quality assurance, or a complete stamping-to-assembly solution, the team at LINHAI DIAN MOULD CO., LTD is ready to support your program.
Phone: +86 13325865358
Email: rita@xuhuimould.com
Address: Hongguang Industrial, Yanjian, Linhai, Taizhou, Zhejiang Province, China
Website: www.dastamping.com