A packaging unit for producing sealed packages containing a pourable food product from a tube of packaging material

A packaging unit for producing sealed packages containing a pourable food product from a tube of packaging material, the packaging unit comprising:

• at least two jaws configured to advance the tube along a first axis, arranged on opposite sides of the first axis itself and movable between (a) a closed position, in which the jaws grip and seal the tube of packaging material at one of a plurality of equally spaced cross sections, and (b) an open position, in which the jaws are detached from the tube;
• at least two forming members arranged on opposite sides of the first axis and supported by the respective jaws in a movable manner between (a) a first operating position, in which, in relation to the position of the jaws, the forming members have the maximum distance from one another, and (b) a second operating position, in which, in relation to the closed position of the jaws, the forming members mate with one another and cooperate with the tube to define the volume of the package being formed between each two consecutive the cross sections;
• an actuator configured to move the forming members between the first operating position and the second operating position, wherein the actuator comprises at least one mover unit connected to at least one respective forming member in any position of the jaws and selectively activated to perform opposite strokes, along which the mover unit produces the movement of the respective forming member in opposite directions;
• and
• a control unit to control the strokes of the mover unit.