5 gallon water bottles can be required to stack into three layers, each layer 4 * 4 = 16 bottles, can also be designed 3 * 4 = 12;3 * 5 = 15 etc. according to customers’ requirements. This machine is with switch, automatically by the switch can be stacked into 1-3 layer. It can improve the efficiency of loading and greatly improve the utilization rate of the finished product warehouse.