The motorised coil-pressing device is generally installed on top of the decoiler. This hydraulic unit is made up of a mobile metal arm and of a wheel (toothed or rubberized) to push the sheet. Its function is as simple as essential. Its final aim is to insert the new strip in the straightener or directly in the roll forming line and restart the new working session. The operations are managed and controlled by the operator at a distance with manual commands, therefore avoiding risks of involuntary accidents.