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Solar PV Ribbon Machine

Solar PV Ribbon & MBB Wire Manufacturing Solutions

GRM provides complete manufacturing solutions for PV interconnect ribbon, PV busbar ribbon and MBB round wire production. Our equipment portfolio covers precision rolling, annealing, tinning, surface treatment and automatic spooling systems, supporting the production of high-performance conductors for modern photovoltaic modules.

Designed for stable quality, precise dimensional control and reliable long-term operation, GRM solutions help manufacturers meet the growing demand for high-efficiency solar cell interconnection technologies.

Complete Equipment Solutions for Solar Conductors

PV Interconnect Ribbon

PV Busbar

MBB Round Wire

Interconnect ribbon transfers current between solar cells, busbar ribbon collects and delivers current to the junction box, while MBB round wire enables higher module efficiency by reducing shading losses.

These conductors play a critical role in power output, reliability and long-term module performance.

How Solar Conductors Are Manufactured

GRM provides complete production solutions for solar conductor manufacturing. GRM equipment covers the complete manufacturing workflow from precision rolling and annealing to tinning and spooling copper material preparation to finished PV ribbon and MBB wire products.

The integrated production process ensures dimensional accuracy, stable coating quality and high production efficiency.

Raw Copper Material

High-purity copper rod as the raw material

Copper Rod

Copper Wire

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GRM Manufacturing Equipment

Complete production line for precision forming, annealing and spooling

Rolling
Mill

Annealing
Furnace

Surface
Treatment

Spooling
System

Electrical
Control

→

Solar Conductors

High-precision PV ribbon and MBB round wire

PV Ribbon

(Interconnect Ribbon / Busbar Ribbon)

MBB Round Wire

(φ0.20-0.25 mm)

→

Solar Module

Used in high-efficiency solar modules

TOPCon
Modules

HJT
Modules

Product Comparison.

PV Interconnect Ribbon

(Tabbing Ribbon)

Function

Cell Connection

Width

0.3 – 1.6 mm

Thickness

0.10 – 0.25 mm

Application

Cell Stringing

Connects adjacent cells across the module string.

Key Advantage

Reliable cell-to-cell connection with high solderability and excellent conductivity.

PV Busbar Ribbon

(Bus Wire)

Function

Current Collection

Width

3.0 – 8.0 mm

Thickness

0.20 – 0.50 mm

Application

Module Output

Busbar ribbon current collection diagram

Collects current from interconnected cells and transfers to junction box.

Key Advantage

Low resistance and high current carrying capacity for maximum power output.

PV MBB Round Wire

Function

Multi-Busbar Connection

Diameter

φ0.20 – 0.26 mm

Thickness

–

Application

High-Efficiency Modules

MBB round wire soldering on cell surface

Soldered on cell surface to reduce shading and improve efficiency.

Key Advantage

Reduced shading loss and better light utilization for higher module efficiency.

Feature	PV Interconnect Ribbon (Tabbing Ribbon)	PV Busbar Ribbon (Bus Wire)	PV MBB Round Wire
Function	Cell Connection	Current Collection	Multi-Busbar Connection
Width	0.3-1.6mm	3.0-8.0mm	-
Thicnkess	0.1 -0.25mm	0.20 -0.50mm	-
Diameter	-	-	φ0.20-0.26mm
Application	Cell Stringing	Module Ouput	High-Efficiency Modules

PV ribbon and MBB round wire are widely used in the production of high-efficiency photovoltaic modules. With the rapid adoption of TOPCon, HJT and BC cell technologies, manufacturers require conductors with higher precision, better solderability and improved electrical performance.

GRM equipment supports the production of solar conductors used in:

TOPCon Modules

HJT Modules

BC Modules

Conventional Crystalline Silicon Modules

Utility-Scale Solar Power Systems

Distributed Solar Energy Projects

Trusted by Industry Leaders

GRM equipment has been supplied to leading PV ribbon and solar conductor manufacturers in China and overseas markets. Through years of cooperation with industry partners, GRM has accumulated extensive experience in conductor rolling, annealing, tinning and process optimization.

Our solar PV ribbon machine solutions support manufacturers producing conductors for high-efficiency solar modules and help customers improve productivity, product consistency and long-term operational reliability.

Start Your Solar PV Production Project

Whether you are entering the PV conductor industry or expanding your production capacity, GRM provides complete equipment solutions, process expertise and long-term technical support.

Contact GRM for a customized PV ribbon or MBB wire manufacturing solution.

Why Choose GRM?

Focused on delivering advanced equipment and reliable solutions for PV ribbon and MBB wire manufacturing.

20+

Years

Precision Rolling Experience

Extensive expertise in precision rolling, coating and conductor manufacturing equipment.

10+

Patents

Patented Technology

Multiple patented technologies for precision rolling, tension control and surface treatment processes.

100+

Installed Lines

Industry References

Trusted by leading PV ribbon and solar conductor manufacturers worldwide.

24/7

Technical Support

Lifecycle Service

Comprehensive support from installation and commissioning to upgrades and optimization.

Frequently Asked Questions

1. What is PV ribbon?

PV ribbon is a flat copper conductor coated with solder and used to connect solar cells inside photovoltaic modules.

2. What is the difference between interconnect ribbon and busbar ribbon?

Interconnect ribbon connects solar cells, while busbar ribbon collects and transfers electrical current to the junction box.

3.What is MBB round wire?

MBB round wire is used in multi-busbar solar modules to reduce shading losses and improve module efficiency.

4.What equipment is required to manufacture PV ribbon?

A complete PV ribbon production line typically includes rolling, annealing, tinning, tension control and spooling systems.

5.Can one production line produce different ribbon sizes?

Yes. GRM systems can be configured for flexible production and rapid product changeover.

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PV Busbar Ribbon Production Line

GRM PV Busbar Ribbon Production Line are designed to continuously process TU1 oxygen-free copper round wire into high-precision tin-coated flat conductive ribbon. The line is suitable for PV interconnection ribbon, busbar ribbon, and reflective busbar ribbon production.
The complete line integrates wire drawing, precision rolling, continuous annealing, flux treatment, hot-dip tin coating, and automatic take-up. It helps PV ribbon manufacturers control width and thickness accuracy, tin coating quality, strip straightness, and winding consistency.
The GRM busbar ribbon production line is approximately 26 m long and 3 m wide, with a total line weight of about 14 tons. The design speed can reach up to 150 m/min, depending on copper wire size, finished ribbon dimensions, tinning speed, and take-up method. Under typical production conditions, the monthly output can reach approximately 60-80 tons.

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New Solar PV Round Wire Machine

GRM New Solar PV Round Wire Machine is designed for the production of interconnection ribbons, the core conductive material used in PV modules.
The line integrates precision drawing, tinning, tension control, and intelligent winding to support stable ribbon geometry, uniform coating thickness, and consistent mechanical properties. These process capabilities help PV manufacturers improve cell interconnection quality, module reliability, and long-term production consistency.

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PV Ribbon Rolling Mills

High-quality PV Ribbon Rolling Mills from GRM Rolling Mill manufacturer are core rolling equipment specifically designed for photovoltaic (PV) busbars, suitable for producing PV interconnects, busbars, and ultra-thin copper strips for high-efficiency cells.
1. High precision
2. High stability
3. Maximum line speed: 120m/min
4. Thickness tolerance: ±0.004mm

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Solar PV Round Wire Machine

GRM Rolling Mill is a leading global supplier of precision production equipment(like Solar PV Round Wire Machine) and complete line solutions for photovoltaic ribbons, particularly MBB ribbons. We specialize in providing comprehensive technology for manufacturing interconnection ribbons—the core conductive material for PV modules—covering precision drawing, timing, and intelligent winding. Our equipment is designed to achieve exceptional stability and consistency in ribbon geometry, coating uniformity, and mechanical properties, which serves as the cornerstone for enhancing cell efficiency and long-term module reliability.

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Photovoltaic Welding Strip Rolling Mill

The China photovoltaic welding strip rolling mill produced by GRM Rolling Mill factory is a special flat wire product used to connect solar cells in photovoltaic modules. It is composed of copper substrate and surface coating. Copper substrate is usually high-purity oxygen free copper or T2 red copper, with copper content ≥ 99.99% and conductivity ≥ 98%. It has good conductivity and certain strength, which can ensure efficient current transmission.

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As a reliable Solar PV Ribbon Machine manufacturer and supplier in China, we have our factory. If you want to buy quality and durable products, please contact us.