Metal coil slitter rewinder machine are used for splitting and cutting cold-rolled strips. 
The repeatability of the cutting accuracy of high-precision shearing equipment is very important. It represents the overall processing accuracy of the equipment, and its influencing factors are not only the processing accuracy of the cutting tool. 
And it is related to whether the basic parameters are reasonable when selecting equipment.
Slitting machine is a high-precision equipment in the slitting line. 
By configuring the number and spacing of the disc blades on the upper and lower knife shafts, the continuously fed strip after unwinding the coil can be longitudinally cut into several narrow strips, and then These narrow tapes are re-wound into coils by the coiler. 
Depending on the thickness of the strip, the number of slitting narrow strips ranges from a few to dozens, and the width of the narrow strip should be greater than or equal to the thickness of the disc blade.

Details of metal rolled coil slitting machine: (dot)shsinopower(dot)com