Abstract: In a poultry-processing machine a suspension conveyor is provided, with the aid of which poultry carcasses are guided individually through processing stations. The poultry carcasses are held for this purpose on shackles fastened to the suspension conveyor, which accommodate the poultry carcasses suspended by the legs. For the purpose of carrying out processing procedures in various levels of the carcass, the shackles are arranged on the suspension conveyor so as to rotate about a shackle shaft. The rotational mechanism comprises a plate element that is equipped with tappets in the form of pins projecting from its top and bottom sides, in the path of which a pair of stationary cam elements in an oppositely mirror-symmetrical arrangement impinge in such a manner that one tappet respectively from the top and the bottom side is in contact during the rotational process with the end-face cams of the cam elements.