This slitting line is special equipment for slitting silicon steel coil into strips. Requirements for the coil: Coil thickness 0.23~0.35mm; Coil inside diameter Φ500~508mm; Coil outside diameter Φ1000 mm; Coil width Max. 1000 mm Coil weight Max. 5000kgs Process Description The silicon steel sheet coil is placed on loading/unloading trolley by a hoist, elevated to appropriate position by the trolley and pushed into the spindle of decoiler manually. The steel sheet is threaded into slitter through guiding device in buffer pit, stationary and movable guiding devices. A pair of driving rolls after rolling cutter draws to shear the steel sheet into desired strip width. The two waste edges can be guided to edge cropping shear (optional) and become scraps, which then fall into dump trolley through conveying chutes. Up to 10 strips are sent to the second buffer pit through driving roll and then the tensioner through detecting device. Detecting device is used to detect the position of steel strips in No.2 pit. When one of the steel strips reaches the top level, the proximity switch on detecting bar can send a signal to decrease the winding speed and detecting bar will fall gradually. When the detecting bar reaches the lowest level (i.e., around 100mm above the pit bottom), the proximity switch on the detecting bar will send a signal to raise the speed of rewinder and the detecting bar raises gradually. The steel strips are sent to one of 4 jaws of winding mandrel of the winder through tensioner, then the mandrel expands to close the jaw and nip the strip head. When the winding is finished, a pressing block goes down to press the strips to avoid coil loosing. The final steel coils are loaded onto the discharging trolley and then pulled out.