The basic uncoiler's material stop mechanism is widely used and has a low cost, straightforward construction, and good material stop effect. There is one glaring drawback, though, which is that it works best at the material roll's narrowest limit. Large material roll widths will cause issues including protracted installation times, difficult and time-consuming debugging, and inadequate material blocking effectiveness. At this time, it is required to employ the stopper arm to limit the position.