Rotary knife


The cross-cutter application offers the basis for typical applications with rotary cutting processes, for example cross-cutters, punching and embossing machines.
Typically, a rotating knife comprises at least one cylinder equipped with one or several knives. During the cut, the circumferential velocity of the cylinder is adapted to that of the material; the format is adapted outside the cutting range.

Function overview

  • Traversing profiles to optimize the cutting behavior or the accuracy

  • Parameterizable cutting curves

  • Multi-knife systems

  • Print mark correction

  • On the fly format change

  • Kinetic buffering with capacitor modules


It includes standardized functions for a rotating knife, and can run on the following automation platforms:


For high performance motion control applications with central intelligence combined with SINAMICS S120 drive systems


For drive-based applications with process-related implementation of the closed-loop control in the SINAMICS S120 drive system using DCC (Drive Control Chart)

Additional standard applications associated with the rotating knife application from the Converting Toolbox

Tension control



Axis function block