The found one consists in pressa for the schiumatura of insulating panels that previews a mobile advanced slab (2) and a fixed inferior (3) between which it comes inserted a panel schiumare (9). Thanks to a solidly bound frame (1) to the mobile advanced slab (2) and struck capacity to against the fixed inferior slab (3), the formation of a room is had (8), containing the panel schiumare (9) in which it is possible to generate the empty one taking advantage of the action of a packing of advanced estate (5a) and of a packing of inferior estate (5b).