China Two High Rolling Mill Manufacturer, Supplier, Factory

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.

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.

China REW-M12 rewinding machine from GRM Rolling Mill factory is designed for the rewinding of strip and film materials: it enables copper strips, steel strips, and 3M films to be unwound from the original coils and rewound into forms that are more suitable for storage and transportation.

GRM Rectangular Wire Micro Rolling Unit is designed for precision rolling of fine round metal wire into high-accuracy rectangular wire through continuous multi-pass cold rolling process.
The system is developed for producing fine rectangular wire for miniature coils, precision winding conductors, medical guidewire flat wire components, sensor conductive elements and other micro profiled metallic parts requiring stable dimensions and clean surface condition.
As a specialized manufacturer of precision rolling equipment, GRM provides customized micro rolling solutions for copper wire, alloy wire and other fine metallic materials according to different production requirements.

Manufactured by the GRM Rolling Mill factory, the GRM-X Series Profile Rolling Machine is an advanced piece of rolling equipment characterized by its high precision and exceptional flexibility. Boasting key advantages such as precise positioning via servo motors, one-touch automatic roll gap calibration, and a modular design featuring both universal and specialized rolls, this machine is ideally suited for diverse sectors—including construction and shipbuilding. It is engineered to meet the rigorous demands of high-end profile manufacturing and supports the customization of profiles with specialized cross-sections.

Developed by GRM Rolling Mill, the China High Precision Copper Alloy Strip Cold Rolling Mill is a core equipment for non-ferrous metal precision processing. Integrating self-developed roll system and intelligent closed-loop control, it achieves micron-level thickness tolerance and leading domestic flatness. With 6-high reversible technology, hydraulic AGC system and full-digital drive, it is ideal for electronic semiconductor, new energy and aerospace fields, providing comprehensive customized solutions.