Applications

Solutions already implemented range from customer-specific solutions for screen-printing solar cells to standardized and fully automated machines for module production.

Screen printing machine for solar cells. Our customer-specific screen-printing machines have many strong points. Among them are careful and ultra-accurate wafer positioning, consis-tently high printing quality, and the possibility of integrating additional modules such as curing ovens, material buffers or flash testers to satisfy individual requirements. The circular arrangement of the process minimizes the problematic and time-consuming task of handling the cells, thus significantly increasing machine system throughput.

Tabbing and stringing of solar cells. Solar cells in a wide variety of sizes and shapes with up to five contact stripsbus bars can be processed using the standard machines. Throughput is 600 cells, and on the double stringer up to 1,200 cells per hour. Despite its compact layout, the processing stations can be accessed easily and ergonomically from all sides. The graphical user interface makes machine system operation intuitive and comprehensible. (Example in photo: Xcell 3400

Using a patented transfer system, the solar cells are indexed precisely and with exact reproducibility. (Example in photo: Xcell 3400 – string and transfer)

A new spray-flux process places the correct amount of flux on the bus bar, allowing for process-reliable soldering. This spray process reduces vapor generation by over 50%. Thanks to controlled handling, extremely soft and cambered contact stripsribbon can also be processed. (Example in photo: Xcell 3400 – spray-flux)