Abstract: A workpiece rotation control system on a paneling machine (1) is described, comprising a rotator device (3) and which is served by a manipulator device (5) with a gripper (7) on a rotating axis (9) designed to arrange a workpiece of material to be machined on a rotating element (11) of this rotating device (3), which comprises first measuring means (13) of an angular position of the rotating axis (9) of the gripper (7) and the rotating device which comprises second means for measuring an angular position of the rotating element (11) of the rotating device (3), and processing means provided for comparatively comparing a value of an angular position measured by the first measuring means (13) with at least a value of an angular position measured by the second measuring means. A paneling machine comprising this system is also described.