The Wind-Up and Pitch

Tension concerns are not limited to the winding operation itself. "It is very important to understand the tension control specifications of the unwind during both the steady running state and the splicing sequence," says Ward. "Tension upsets during the splice sequence can greatly affect the overall waste output of a press. The customer may also need to consider the quality of tension coming from the unwind and how that will affect the infeed tension going to the press."