The solution is carried out with an adhesive portal on which an application head moves transversely back and forth to the panel transport direction. The glue dosing system follows the respective transport speed of the panels and automatically adjusts the required adhesive and water application (with 1C-PUR adhesive). The result is a uniform trapezoidal bead application. Also parallel beads transversely can be applied if desired and implemented by program variants.
The portal system is designed to be retrofitted with low conversion effort from 1C to 2C PUR adhesives (or vice versa).