The Slitter Lock-up System completely eliminates unwieldy threaded "spin-on" arbor nuts historically employed to secure slitter tooling, and replaces them with hydraulically engaged hardened precision machined tool steel "locking fingers" that are built into the upper and lower slitter arbors. After the knives and spacers are installed onto the slitter arbors and the tooling set-up is complete, the attendant powers up the Lock-Up System via pushbutton, automatically engaging the locking fingers and securing the tooling onto the slitter arbors.

The Lock-Up System is hydraulically powered and is designed to generate the enormous compression force required to prevent undesirable tooling wobble caused by dished and/or insufficiently tightened slitter tooling.