The magnetic body of the vibrator powered with AC 230V AC produces motion. The attraction is alternative between the vibrator and the magnetic steel piece vis-à-vis induces the vibration. The amplitude of the movement is adjusted by means of a VF6 voltage variator. Fixing will be done by the 2 legs integrated in the vibrator and equipped with permanent magnet of maintenance on the element to be vibrated. The adjustment of the gap will be done automatically thanks to these tabs. In this assembly, the mass of the vibrator and its inertia in motion generate the vibration.