- Roll-up covers are mainly used on conventional machine tool, wood working machine, lathe machine, CNC machine center, optical equipment, semi-conductor equipment, automation equipment...etc. The purpose of install roll-up covers on machine is to prevent operator from shooting by metal pieces, and can do the work under a save environment at the same time. The width, screen length and the speed of the roll-up cover screen can be customized design and manufactured, according to our customer demand in specific environment and dimensions, we can choose the suitable material for our customer to make the right roll-up covers for their machines.