Floating pressure rollers ("swimming rollers") support the workpiece guidance in wide belt sanders by pressing the workpiece from above onto the feed belt.

These pressure rollers are arranged between the aggregates. The distance between these pressure rollers is decisive for the minimum workpiece length. They prevent short workpieces from standing up between the sanding units and ensure that thin workpieces do not flutter.

In order to ensure a full-surface pressure, the rolls are fixed on both sides. If the thickness of the workpiece should drop slightly to one side, this is compensated for by this type of fixture. Grooved pressure rollers compensate for differences in thickness of workpieces that pass through the machine side by side.

The pressure of the rollers is usually applied by spring force.

Machines with floating feed table

On machines with a floating feed table, the pressure rollers can be adjusted differently depending on the sanding task.