A sealing and stripping assembly for a packaging apparatus, the assembly includes two shafts which are held in a spaced generally parallel co-extensive relationship with an arm extending from each shaft, and co-operating pairs of closing and stripping bars mounted on the radial extremity of each arm so as to engage a bag material passing through the assembly so as to seal and strip same during a packaging operation, with said arms being driven in synchronism and in opposite rotational directions.