VFF Process for Glass/Glass Modules or Panels for high capacities 180 – 250 MWp.
The Bürkle VFF-Process is a two-step lamination process utilizing a vacuum/membrane press in the first step and a double-sided heated flat press in the second step. A double-sided cooled flat press is used for cooling. The flat press allows uniform, parallel pressing and practically eliminates the “edge pinch” effect at the edges of the module, without using frames during lamination. The double sided heating ensures a faster lamination, homogeneously from both sides, and thus minimizing any remaining stress in the module after lamination.
Useful lamination area [mm] | 2000 x 2200 |
Number of openings | 4 – 5, others on request |
Number of modules per opening | 2 x 60 cells or 2 x 72 cells |
Modules per hour | up to 80 @ 4 levels up to 100 @ 5 levels |
Number of lamination steps | 2 |
Heating medium | Thermal oil in combination with steel heating platens |
Temperature accuracy | < +-2 [°C] |
Cooling unit | Optional equipment |
Cooling | Double sided plates |