Abstract: A boxing apparatus having a substantially horizontal conveyor feeds overlapping folded boxes into a upright gravity fed hopper with a bottom gate portion. The boxes are generally aligned axially in the hopper on the gate portion to be individually removed by a suction gripper positioned below the gate portion and which reciprocatingly moves up and down to grab and pull the bottommost folded box in the hopper through the gate portion. The box is opened and articles are fed into said box and said box is closed. The suction gripper having a reciprocating arm which reciprocates up and down to accomplish the reciprocating motion of the suction gripper. A tamper device comprised of a elongate member having a reciprocating stack tamper linked to the reciprocating arm and positioned such that the engagement portion of the tamper device follows the reciprocating motion of the reciprocating arm and translates said motion to the tamper for jogging the stack into alignment preventing hopper jams.