Firstly, there’re passive uncoiler as well as motorized uncoiler, according to different material types. That is to say, passive uncoiler will be suitable for the general stamping process. However, when the thickness is thin, and surface requirements are particularly high, motorized uncoiler parts will be applied. Besides, when the coil is a springy type, a hold-down arm with pneumatic pressure will be suitable for this situation.
Secondly, all the rolls are made by Gcr15 bearing steel, with surface thickening chrome grinding. And the pressure on straightening rolls is the pneumatic type with worm wheel adjustment for precision and smoothly press feeding process.