The longitudinally-moving roller slide which provides the rolling force is operated hydraulically.
The hydraulic piston can be delicately controlled by the CNC control in terms of
both rolling force and speed of movement. The position and control signals are transferred
and supervised in connection with an incremental measuring system. The crucial innovation
in this control concept is that the track of both rollers towards one another is adjusted by
pressing keys. The value ascertained is saved and constantly monitored during the rolling
process. The saved values can also be retrieved for new workpieces with similar technical
data, thus saving preparation time.