What are the technical characteristics of Photovoltaic Welding Strip Rolling Mill

       The technical characteristics of the photovoltaic welding strip rolling mill revolve around the production needs of "high precision, high consistency, and high stability" of photovoltaic welding strips, with a core focus on four dimensions: size control, production efficiency, operational reliability, and process adaptability.

1. Ultra high precision control capability

       This is the core technical feature of the photovoltaic welding strip rolling mill, which directly determines the quality of the welding strip products.

       Dimensional accuracy control: By driving the rolling mill with servo motors and real-time monitoring with high-precision sensors, ultra precision control of welding strip thickness ± 0.005mm and width ± 0.01mm can be achieved, meeting the production needs of different specifications of photovoltaic welding strips (such as 0.12-0.2mm ultra-thin welding strips).

       Tension Stability Control: Adopting a multi-stage tension closed-loop control system, the tension is precisely regulated throughout the entire process of unwinding, drawing, rolling, and winding to avoid tensile deformation or breakage of copper wire due to tension fluctuations, ensuring the uniformity of the welding strip cross-section.

       Roll accuracy guarantee: The roll is made of high-strength alloy material, processed by ultra precision grinding, with a surface roughness of ≤ 0.02 μ m, and equipped with a roll temperature compensation system to prevent dimensional deviation caused by friction heating of the roll.

2. Efficient and continuous production design

       Adapt to the large-scale production needs of the photovoltaic industry and improve production efficiency through structural optimization and automation technology.

       High speed rolling capacity: The rolling line speed of advanced models can reach 60-120m/min, and the daily production capacity of a single equipment is increased by more than 30% compared to traditional models, meeting the bulk demand for welding strips in the expansion of photovoltaic module production capacity.

       Full process automation: integrating functions such as automatic unwinding, online detection, defect alarm, and automatic winding, without the need for manual intervention in intermediate links, reducing downtime, and achieving 24-hour continuous and stable production.

       Quick changeover design: Using modular roller sets and parameter memory function, the changeover time  can be shortened to 15-30 minutes when changing different specifications of welding strips, improving the flexible production capacity of the equipment.

3. Long term operational stability

       For industrial grade continuous production scenarios, ensure equipment reliability through hardware selection and system design.

       High rigidity fuselage structure: The fuselage adopts integral casting or welding technology, and undergoes aging treatment to eliminate internal stress, ensuring that the fuselage does not deform during the rolling process and providing a stable foundation for high-precision rolling.

       Durability of key components: Core components such as roller bearings and transmission gears are made of imported high-precision components, combined with a circulating lubrication and cooling system to extend the service life of the components and reduce equipment failure rates.

       Intelligent fault diagnosis: equipped with multi-dimensional sensors such as temperature, vibration, and current, real-time monitoring of equipment operation status, automatic alarm and display of fault points when abnormalities occur, facilitating quick troubleshooting and maintenance.

4. Process adaptation and functional expansion

       Meet the upgrading needs of photovoltaic ribbon technology and have diversified process adaptation capabilities.

       Multi specification compatibility: It is compatible with different raw materials such as circular copper wire and triangular copper wire. By adjusting the rolling parameters and rolling process, it can produce welding strips with various cross-sectional shapes such as flat and trapezoidal, and adapt to the welding needs of different types of photovoltaic cells (such as PERC, TOPCon, HJT cells).

       Cleaning and energy-saving design: Integrated online cleaning mechanism (such as high-pressure airflow+cleaning brush), real-time removal of impurities on the surface of the rolling mill and welding strip, avoiding oil and dust from affecting the surface quality of the welding strip; Some models use variable frequency energy-saving motors and waste heat recovery systems, which reduce energy consumption by 15% -20% compared to traditional equipment.

       Data management: supports integration with factory MES systems, real-time uploading of production data (such as output, dimensional accuracy, and pass rate), and enables digital monitoring and traceability of the production process.