A conveyor for a packaging apparatus comprising a conveyor having a conveyor belt (2) with a rotatable portion (12) comprising a plurality of sub-elements (17). Each one of the sub-elements (17) comprises first annular features and second annular features. The first annular features of a sub-element mate with the second annular features of an adjacent sub-element forming a coupling seat where a pin is inserted to rotatably connect the two adjacent sub-elements. The rotatable portion (12) carries driving pieces which are put into motion by a control mechanism such that upon displacement of the conveyor belt (2) a corresponding rotation by 90° or multiples thereof is imparted to the rotatable portion (12). A packaging apparatus using the above conveyor belt is also described.