Flexible Packaging recently caught up with Uli Jorgens, sales and technical director, slitter/rewinder division, Karlville, for an overview of all-things slitting/rewinding.
Jorgens: For us, it is important to continuously enhance key sections of our slitter/rewinders, like slitting concepts, differential rewind systems and tension control, to improve finished roll quality and simultaneously improve productivity. For example, our floating lay-on rollers to control finished roll density work well. However, for higher speeds and larger rewind roll diameters, we offer pendulum or linear lay-on roller concepts. Customers have been pleased with this alternative concept. We made advancements in finished roll handling to reduce operator-influenced down times. Furthermore, recipe storage, automatic knife positioning and core loading ensure to produce the same roll quality over and over again with different operators. It is an enormous help obtaining consistent rewind roll quality.