A group of rollers calibrates the thickness of the extruded sheet and delivers it to the forming unit. The main components and features of the unit are:
a couple of chromium plated and ground high tensile alloy steel laminating rollers;
independent cooling system for each roller, ow regulation valve and thermometer;
transmission unit whit D.C. motor and transmission chain;
manual regulation of the thickness and graduated disc;
low shear scraping blades.