Patent ID: 7367457

Claim:
A conveyor belt assembly including a motor-driven system for separating non-magnetizable metals and ferrous fractions that are present, from a solid mixture, comprising a stator ( 1 ) and a drum ( 2 ) supported on the stator ( 1 ) for moving the conveyor belt, the drum rotating around the stator, a rotating magnet rotor ( 4 ) including permanent magnets, the rotating magnet rotor being eccentrically arranged in the rotating drum ( 2 ) and supported on the stator ( 1 ), the stator ( 1 ) includes a balance weight ( 1 . 1 ) for providing mass balance and operating as an oscillation damper, the balance weight supported on the stator ( 1 ) and arranged in the rotating drum ( 2 ) a predetermined distance away from the stator ( 1 ) and the balance weight ( 1 . 1 ) compensates for oscillations produced from tilting the magnet rotor ( 4 ).