A Roccia four roll bending machine utilizes 2 driven rolls to ensure the rolling torque power transfer. This way a strong material grip is assured between top roll and lower roll with the [MAP] material pinching system.
Single unit high torque hydraulic MOTORS/PLANETARY GEARBOXES are directly mounted onto each driving roll to ensure a smooth feed through of the plate, there is no loss of power normally associated with secondary transmissions, plus the added benefit of one less gearbox to maintain.