Sheet extrusion line

for PETfor PCfor PMMA

The main extruder has been specifically designed for PC processing, keeping in mind the efficiency of the venting system. This has been made possible by using bimetallic barrel and screw. Constant feed rates synchronized with the gear pump and the extruder screw rpm are ensured by the gravimetric high precision dosers. To protect the sheet against UV rays, the co-extruder thrusts out a suitable thin layer. Obtaining high optical quality sheets is critical for the calendering system. In the 3-roll calendar, BG Plast engineers have applied the best mechanical and technological solutions. The calender possesses three rolls of 410 mm diameter with high gloss finishing on surface with internal circulation of pressurized water flow at high temperatures. The total width of the rolls is related to the final net width of the sheet. Standard width for this type of machine is 2300 mm for net width on sheet of 2000 mm.