Square drum side print and apply labeling machine is suitable for real-time side printing and labeling of square drums, boxes and other items. The content on the label is real-time, which can be from the database, code scanning gun or DWS, etc. The content of each label is different, and the label and the item match one by one. The whole machine is made of high quality stainless steel and aluminum alloy, the body structure is stable and robust.