Application engineering



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Gripper shaft control

Gripper shaft in a sheet offset printing press. A typical application for INA track rollers (Photo: Heidelberger Druckmaschinen AG)

The gripper shaft control in sheetfed offset printing machines ensures that printed sheets are transferred precisely and reliably from one cylinder to another. Here, tolerances of a few µm are decisive in ensuring that the required reliability and precision is achieved.

This important task is performed by yoke and stud type track rollers series PWTR and PWKR, which are responsible for the precise opening and closing motions of the paper grippers. The track rollers have a low wear, compact and space-saving design and therefore provide the high rigidity and high load capacity required in gripper shaft control units in the smallest of spaces.