GRM Machinery | Leading China Manufacturer of Intelligent Precision Rolling Mills

About GRM Machinery

Jiangsu Youzha Machinery Co., Ltd. (GRM) traces its origins to Zhangjiagang Hongxinyuan Technology Co., Ltd., founded in 2008. After strategic restructuring in 2015, GRM has become a leading domestic manufacturer of intelligent precision rolling mills and photovoltaic (PV) ribbon equipment.

16+ Years of Metal Forming Excellence

Since 2004, GRM has been deeply engaged in the field of metal forming, accumulating extensive expertise in precision engineering and advanced manufacturing.

As of 2025, the company employs 60 professionals, with R&D personnel accounting for over 30% of the workforce. We hold 50+ patents, including breakthrough technologies such as the "Polygonal Wire Automatic Feeding Device" and "Busbar Rolling Equipment."

50+ Patents in Metal Forming
30% R&D Workforce
ISO-Certified Manufacturing
Global Presence in 50+ Countries

Our Featured Products

Engineered for precision, durability, and high-speed performance across industries including solar, automotive, medical, and home appliances.

Photovoltaic Welding Strip Mill

Specialized for solar panel interconnect ribbons. High-precision forming with automated feeding systems.

Material: Copper, Tin-coated
Speed: Up to 200 m/min
Width: 1–10 mm
Thickness: 0.1–0.3 mm

Flat Wire Rolling Mill

Ideal for copper, aluminum, stainless steel, and carbon steel flat wire production.

Material: Cu, Al, SS, CS
Speed: 30–200 m/min
Width: Up to 30 mm
Design: Cantilever, 45°/90° roll change

Round Wire Rolling Mill

Advanced cantilever structure with grinding gear transmission for titanium, precious metals, and brass.

Diameter: ≤30 mm
Speed: 30–200 m/min
Applications: Aerospace, Medical
Roll Change: Fast, tool-free

Complex Profile Rolling Mill

Custom roll forming for complex cross-sections in copper, aluminum, and steel.

Profiles: T, L, U, Polygonal
Speed: 30–180 m/min
Material: Alloy, Brass, SS
Patent: Auto-feed system (ZL 2020 228400538)

20-Roll Reduction Rolling Mill

High-precision thickness reduction for thin strip and foil applications.

Reduction: Up to 90%
Thickness: 0.05–1.5 mm
Speed: 20–150 m/min
Control: CNC + Laser Monitoring

Strip Rolling Mill

High-speed continuous rolling for copper, aluminum, and stainless steel strips.

Width: 10–100 mm
Thickness: 0.1–3 mm
Speed: Up to 200 m/min
Drive: Precision Gear Transmission

Busbar Calendering Equipment

Breakthrough technology for high-conductivity busbar production in EV and power systems.

Material: Copper, Aluminum
Width: 20–150 mm
Thickness: 1–10 mm
Surface Finish: Mirror-grade

Integrated Rolling Line

Complete turnkey solution with decoiler, rolling mill, tension control, and recoiler.

Automation: Full PLC Control
Sensors: Laser Thickness Gauges
Integration: ERP & MES Ready
Support: Remote Diagnostics

Our Solutions

Precision mill manufacturers with independent R&D and manufacturing capabilities.

Advanced Manufacturing System

Equipped with Japanese CNC machining centers, laser precision measurement tools, and fully automated assembly lines.

Integrated R&D, Machining & QC Labs
CNC Machining Centers (Japan)
Laser Precision Measurement
Automated Assembly Lines

50+

Patents Held

16+

Years Experience

Employees

30%

R&D Team

Industries We Serve

Solar Energy

Automotive

Medical

Home Appliances

Frequently Asked Questions

What materials can your mills process?

Our rolling mills are designed for copper, aluminum, stainless steel, carbon steel, titanium alloys, brass, and precious metals.

What is the maximum wire diameter supported?

Our round and flat wire mills support materials up to 30mm in diameter or width.

Do you offer custom engineering solutions?

Yes, GRM provides full custom design and engineering for specialized profile and reduction applications.

What is your production lead time?

Standard models: 60–90 days. Custom systems: 90–120 days depending on complexity.

Do you provide installation and training?

Yes, we offer on-site installation, commissioning, and operator training globally.

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GRM Machinery – Precision Rolling Mill Innovation Since 2004