Coil End Point minimizes scrap by halting the roll former prior to cutting the last parts, leaving enough material still inside the roll former to finish the order. This occurs any time a different material is required on the upcoming Next job. When the controller halts the line for a Coil End Point, it displays a warning window and notifies the operator of a pending Material or Product Code change.
Coil End Point is the distance from the back of the shear blade to the point where the material is typically manually cut in order to change coils. It should be long enough to ensure the cut point does not coast into the roll former and become inaccessible, so material that is not needed for the current job is prevented from entering the roll former or stopped at the appropriate time for changing tooling. The general formula is:
Coil End Point = Shear to Roll former Entrance Distance + Machine Coast Distance