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A depalletizing system of depalletizing articles which have been stacked in layers and separating them one by one so that loading work of those articles onto trucks or freight cars can be carried out more easily and in a shorter time than when carried out manually. The system includes hoisting means comprising a tiltable mast and a loading table, a chute secured to the upper portion of the hoisting means substantially in parallel with the plane of each layer of the articles, control means for controlling the upward movement of the loading table, selecting means for blocking the passage of the articles whenever required, and separating means for separating them one by one. The system further includes means for arranging those articles in the same orientation. Accordingly, all work from depalletizing to conveying them onto trucks or freight cars can be completely mechanized.