A shuttle packaging machine includes a support structure having a servomotor driven shuttle device mounted thereon. A transfer arm having suction cups clamps, removes and holds a shipping blank on the shuttle device during all of the packaging functions. The major and minor flaps of the shipping container are held open during the loading of the container. Tucking or folding plows and pneumatic cylinders fold and hold the major and minor flaps. The “shuttle action” of the shuttle device during loading and flap folding allows for a compact arrangement as well as minimizing the number of parts required.