Jinchen’s auto-bussing tool uses non-contact induction soldering to connect cell strings with busbars during module assembly. (Photo Credit: Jinchen Machinery)
Technology

Auto-Bussing Equipment For PV Module String Interconnection

Jinchen’s bussing system uses induction soldering to electrically connect module cell strings during assembly

Shashi Kiran Jonnak

Key takeaways:

  • Jinchen’s auto-bussing system uses non-contact induction soldering to connect cell strings within the module stack

  • The tool supports wafer sizes up to 230 mm and string spacing between 1 mm and 6 mm for modules up to 2,600 × 1,450 mm

  • A standard bussing cycle requires about 16 seconds, with additional time required for optional processes such as laser scraping

Another auto-bussing tool in the TaiyangNews Market Survey on Solar Module Production Equipment 2026 is from Jinchen. Similar to other toolmakers, Jinchen also uses non-contact induction soldering. With a standard setting of processing the 182 mm wafer type and 16BB, the tool is designed to process wafer sizes up to 230 mm. The tool can support a string spacing window of 1 to 6 mm, with a maximum module size of 2,600 × 1,450 mm.

Although the company doesn’t specify the throughput, a single process cycle requires a standard time of 16 s, plus 2 s for optional functions such as laser scraping of busbar coating. Jinchen claims a process yield of at least 99.5% and a mechanical yield of more than 99.999% for this tool, indicating a very low breakage. The bussing process achieves a minimum peel strength of 5 N/mm. The tool system offers busbar cutting and bending accuracy with a deviation of 0.4-0.5 mm, and an angular deviation of 2°. The system weighs 8 tons and measures 4,874 × 4,690 × 2,585 mm.

Key specifications of Jinchen’s auto-bussing system, including supported wafer sizes, string spacing, cycle time, and mechanical parameters.

The text is an edited excerpt from TaiyangNews’ latest Market Survey on Solar Module Production Equipment 2026, which can be downloaded for free here.