Abstract: A motor for a plate of a labelling machine comprises a housing with a connecting portion for connecting the motor to a carousel of the labelling machine, a motor shaft pivotally supported within the housing, a coupling flange having a first end connected to the motor shaft and a second end that can be connected to the plate. The motor shaft and coupling flange are joined as one piece such as to form a one-body shaft-flange unit.

Abstract: A filler valve unit (1) for feeding a preset amount of filling liquid (3) into a container (6) having an outlet (4) for feeding out filling liquid and an outlet (11) for injecting gaseous fluid. The filler valve unit (1) comprises at least one stop element (14) forming a stroke limiter acting on the container (6). According to the invention, the stop element (14) is mobile and moves between at least two operating positions consisting of a first operating position wherein the stop element holds the mouth (5) of a container (6) at a preset distance from the outlet (4) and a second operating position wherein the stop element (14) holds the mouth (5) of the container (6) at a distance from the outlet (4) which is less than the preset distance.