Beyond the Press: How DIAN STAMPING Delivers End-to-End Quality in Automotive Stamping Dies and Custom Sheet Metal Parts

A closer look at what makes a vertically integrated stamping partner truly reliable — from die design to delivery

In the competitive world of automotive manufacturing, the quality of your stamped components is only as good as the tooling behind them. Finding a partner who can deliver precision automotive stamping dies, high-volume production runs, and rigorous quality inspection under one roof is no small feat. That is precisely where DIAN STAMPING stands apart.

Headquartered in Linhai, Taizhou, Zhejiang Province — a region known for its strong mould-making ecosystem — DIAN STAMPING (LINHAI DIAN MOULD CO., LTD) has been serving the global automotive supply chain since 2003. With over 20 years of hands-on experience, the company has grown from a dedicated die workshop into a full-service manufacturing partner trusted by OEMs including KIA, BYD, Toyota, Honda, Suzuki, and Geely, with exports reaching more than 10 countries.

A Facility Built for Scale and Precision

DIAN STAMPING's manufacturing footprint speaks volumes about its commitment to capacity and quality. The company operates a modern facility covering approximately 50,000 m², with a dedicated die workshop of roughly 4,000 m². A planned 35,000 m² expansion featuring new press and coating lines underscores its trajectory of continuous investment.

The company's annual capacity stands at approximately 2,000 sets of medium and small stamping dies, with an annual die turnover of around RMB 50 million. This scale is supported by a skilled workforce of roughly 110 employees, including about 35 die designers and technicians who bring deep expertise in CAD/CAM design using AutoCAD, SolidWorks, and CATIA.

  • 50,000 m² modern manufacturing facility with dedicated die workshop
  • 2,000+ sets of medium and small stamping dies produced annually
  • 110+ skilled employees, including 35 die designers and technicians
  • 20+ years of industry experience serving global OEMs

Comprehensive Stamping Die Solutions

At the heart of DIAN STAMPING's offering is its expertise in stamping die manufacturing. The company produces a full range of tooling types engineered to meet the demands of modern automotive production:

Progressive Dies
Multiple operations — blanking, forming, punching, coining, and cutoff — in a single pass for high-volume efficiency.
Transfer Dies
Designed for complex large and medium-sized parts requiring multiple forming stations.
Tandem Dies
Engineered for car body structural components using high-tensile-strength materials.
Custom Tooling
Fully customized solutions from 2D drawings, 3D data, or physical samples.

The company is capable of processing a wide range of materials, including multiphase steel, aluminum alloys, custom rolled and welded plate, and stainless steel — giving automotive engineers the flexibility they need for modern lightweight and high-strength designs.

Precision Custom Sheet Metal Parts and Fabrication

Beyond tooling, DIAN STAMPING is a full-fledged producer of custom sheet metal parts for automotive, household appliance, and industrial applications. The company's sheet metal fabrication capabilities span the entire production chain:

  • Laser cutting — Precise, clean cuts for complex geometries
  • Bending and forming — Accurate dimensional control for tight tolerances
  • Robotic MIG welding and spot welding — Consistent, high-strength joints
  • Powder coating — Durable surface finishing for corrosion resistance and aesthetics
  • Assembly — Complete sub-assembly and final assembly services

Application areas covered include body-in-white systems, door systems, seating systems, instrument panels, exhaust systems, chassis systems, fuel tank systems, and clutch systems. Whether the requirement is a complex structural bracket or a precision interior component, DIAN STAMPING delivers from prototype to high-volume production.

Quality Assurance Through Precision Checking Fixtures

Reliable manufacturing is nothing without reliable inspection. DIAN STAMPING offers high-precision checking fixture solutions that ensure every stamped component meets rigorous GD&T standards. These custom-engineered inspection fixtures enable rapid, repeatable dimensional verification, giving both the manufacturer and the customer complete confidence in part quality.

The company's checking fixtures are designed and built as matched sets with the press dies, ensuring that dimensional verification aligns exactly with the production tooling. This integrated approach eliminates the common disconnect between tooling and inspection — a significant advantage for automotive programs with tight tolerance requirements.

Quality Framework

DIAN STAMPING operates under an ISO 9001 quality management system and follows IATF 16949-oriented automotive manufacturing practices. The company identifies itself as a direct factory — not a trading company — ensuring factory-direct pricing and full traceability from raw material to finished part.

Welding Jigs and Assembly Fixtures for Production Accuracy

Consistent welding quality requires precise fixturing. DIAN STAMPING designs and manufactures custom welding jigs tailored to specific assembly geometries. Capabilities include robotic MIG welding, spot welding, and manual welding techniques, supported by custom welding jig design that ensures repeatable positioning and minimal distortion.

This is particularly critical for safety-related automotive components such as chassis parts, seat frames, and body-in-white assemblies, where weld position and structural integrity are paramount.

Why Choose DIAN STAMPING as Your Manufacturing Partner

One-Stop Vertical Integration

From die design and stamping to inspection and assembly, DIAN STAMPING manages every step in-house. This eliminates the coordination overhead, quality gaps, and delivery delays that plague multi-supplier supply chains.

Direct Factory Pricing

As a true manufacturer, DIAN STAMPING offers competitive pricing without intermediary markups — a critical factor for cost-sensitive automotive programs.

Proven Global Track Record

With customers including KIA, BYD, Toyota, Honda, Suzuki, and Geely, and exports to more than 10 countries, the company has repeatedly demonstrated its ability to meet international quality and delivery standards.

Customization and Prototyping

DIAN STAMPING accepts custom orders from 2D drawings, 3D data, or physical samples. Prototype services are available, and free metal samples can be provided upon request.

Ready to Partner with a Factory That Delivers?

Whether you need precision automotive stamping dies, high-volume custom sheet metal parts, or comprehensive checking fixture and welding jig solutions, DIAN STAMPING has the capacity, experience, and quality systems to support your next program.

Contact the team today to discuss your project requirements:

LINHAI DIAN MOULD CO., LTD
Hongguang Industrial, Yanjian, Linhai, Taizhou, Zhejiang, China
Phone: +86 13325865358 | +86 13282622227
Email: rita@xuhuimould.com | xh-mould@163.com
Website: www.dastamping.com

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