Solar processing lines
Processing lines for assembling mono- or bifacial or thin-film photovoltaic modules. The lines consist in several zones, where Bottero is both supplier and system integrator.
Loading, Laser Marking & Washing Of Front Glass
Glasses composing the module are loaded onto the line thanks to anthropomorphic robots and washed by special washing units.
Eva Laying, Stringers
The first EVA layer is laid on the plate. Top rate stringers weld/glue the 10- 12-cell strings. An anthropomorphic robot takes the string from the stringer, takes it to the electroluminescent quality inspection and then releases the welded string onto the glass plate. In the following automatic station strings are connected one another thanks to ribbons that are fully automatically cut, bent and welded in the correct position by means of welding robots. Then the second EVA layer is laid and the second glass - in case of bifacial module - or the Tedlar layer in case of standard module – is coupled.
In the following station the electroluminescent quality inspection test is carried out before the entry into the lamination system; then the automatic bending of the ribbons and the automatic application of the protective tape on the edges of the modules is performed. Lamination is executed in top production rate lamination furnaces where 4 modules at a time are usually treated. Once the module comes out of the lamination system, the protective tape is removed and trimming is carried out by means of heated blades.
Quality Inspection And Packing