Depalletizers provide an efficient means to sort or inverted corrugated boxes from bulk layered pallets on to a conveyor or conveying system for use in high speed automated packaging systems. Although there is great variety in different manufacturer's system designs, the basic principles of mechanical de-tier remain relatively constant for most applications. The case depalletizer consists of a load section, a tilt chamber and a de-tier section. One tier of packages is extracted from a pallet in a horizontal position. The load chamber feeds a vertical pallet into the tilt chamber. The tilt chamber tilts the pallet into an almost horizontal position and loads the de-tier device. Through a combination of gravity and mechanical clamping, the de-tier separates the top tier of cases from the remaining tiers and feeds the packages into a conveyor or conveying system. This process is repeated with each tier until the pallet is empty and subsequently discharged into a pallet stacker. Case depalletizers are used extensively in the food, beverage, pharmaceutical, consumer products, and chemical industries.