Stringing

The Xcell, a combined tabbing and stringing machine, is undoubtedly the top product in our product portfolio. We continually work to improve and expand the capabilities of this product using technologies that have repeatedly proven itself in actual practice. Our use of robotics reduces the handling time for solar cells while our ultramodern Vision Alignment System (VAS) and non-contact induction soldering make the Xcell a shining example for the industry.The Xcell product family offers a number of well-proven functions for solar cell alignment, a non-contact spray fluxing process, controlled ribbon handling for two and three bus bars, pyrometric temperature control and precise solar cell and string transport. We are constantly striving to reduce the breakage rate (a rate of less than 0.5 percent is feasible) and increase output (800 to 900 cells per hour on a back-contact machine compared to 1100 to1200 cells per hour on our conventional Xcell machines). At the same time, we want to meet our custo-mers’ demands for thinner solar cells, narrower ribbon alignment, Z-bending and simplified versions requiring less maintenance.