In the de-coiler, upper and lower steel facings are unwound and then fed into the profiling unit where they are profiled according to the planned geometric design.
Then according to the desired thickness of the sandwich panels, the two facings are brought together at the desired distance and are heated to the temperature necessary for foaming.
In the foaming station, the liquid reactive mixture is released continuously into the gap between the upper and lower facings. The reactive mixture foams up and fills the space between the two facings.
The calibration unit then takes over the pressure of the rising foam and maintains the programmed panel thickness until the foam hardens.
After the foam has hardened, the sandwich panels