Automatic Solar Cell Stringer for High-Efficiency PV Module Production

The solar cell stringing process is a critical stage in photovoltaic module manufacturing. It connects individual solar cells into electrically functional strings before layup, lamination, and final testing.

For modern PV factories, manual or semi-automatic stringing may create limitations in production speed, welding consistency, cell handling, and labor management. An automatic solar cell stringer provides a more integrated solution.



What Is a Solar Cell Stringer?

A solar cell stringer is a machine used to connect solar cells with conductive ribbons. The stringing process generally includes:

  1. Cell loading

  2. Cell positioning

  3. Ribbon cutting

  4. Ribbon preparation

  5. Soldering

  6. Cell string formation

  7. String unloading

The YH-CH series automatic stringer from Wuhan Yoha Laser integrates these processes into one automated production workflow.



Main Features of the YH-CH Series

High-Speed Production

The equipment can reach a maximum speed of 2,400 cells per hour. Welding speed can be adjusted according to the production-line requirements.

Precision Visual Positioning

The machine uses industrial cameras and intelligent visual recognition to identify cell edges, busbars, and ribbon positions. The specified visual positioning accuracy is ±0.01mm.



Stable Welding Quality

The YH-CH series supports infrared constant-temperature welding or high-frequency electromagnetic welding. Welding temperature can be controlled from 100°C to 350°C, with a specified temperature variation of ±2°C.

Flexible Cell Handling

The equipment uses soft suction cups, buffered transmission, and low-stress handling structures to reduce damage to thin solar cells.

Broad Compatibility

The stringer supports 166mm, 182mm, and 210mm cells, including:

  • Monocrystalline cells

  • Polycrystalline cells

  • PERC cells

  • TOPCon cells

  • HJT cells

It can also work with round, flat, and tinned ribbons.



Why Automation Matters

Automatic stringing can help PV manufacturers improve:

  • Production efficiency

  • Welding consistency

  • Cell yield

  • Labor utilization

  • Production traceability

  • Equipment integration

The machine supports intelligent touchscreen control, PLC programming, parameter storage, and MES system integration.



Suitable Applications

The YH-CH series can be used in:

  • Conventional PV module production

  • TOPCon module production

  • HJT module production

  • Large-size wafer module manufacturing

  • Automated solar factories

  • Smart manufacturing facilities



Conclusion

A reliable solar cell stringer should combine speed, precision, flexible cell handling, and stable welding performance.

The YH-CH automatic solar cell stringer from Wuhan Yoha Laser is designed to support different cell technologies and production requirements.

Learn more: https://www.whyoha.com/product/solarpanelline/154.html 

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