The invention discloses a shaker device comprising at least one motorised member (20) that is intended to transmit by contact a shaking force to objects to be shaken, said member including a plurality of structural inserts (22, 24) that are covered by a wear jacket (23), each of said structural inserts (22) having respective left lobes (25) and right lobes (26), said inserts being distributed in the jacket (23) so as to form a respective discrete stack of left lobes (25) and right lobes (26).
