This unit is mainly used to produce 3D pellets. It is composed of 3 sets of rollers: the rst one perforates the sheets coming from the extruder; a second set, made of rubber, stretches the sheets which are eventually formed into the desired shape by the third set and its stamping sectors.
The scraps coming from this operation are nely crumbled by a cutting machine and then transported by a pneumatic conveyor to the extrusion unit and recycled.
The MIS machine in his variation MIS/D presents two sets of stamping rollers that allow to produce chips from each sheet coming from the extruder. The chips produced in this way will have a curlier shape than those produced with the rotary former PR.