The OK Durable CE-33 Power Form is a cost effective semi-automatic system to erect, pack, and seal batches of uniform cases. The operator opens a case into a tube, positions it into the former where all bottom flaps fold automatically, and the case is firmly held in place. Once the product is packed, the operator tucks the top trailing minor flap and advances the case into the side belst where the remaining top flaps are folded automatically and the top and bottom are sealed with tape.