GEM XF520/670 was designed to meet the highest demands, always aiming at constructional strength, quality and reliability, the current key feature of the new range of Comarme machines. GEM XF520/670, an automatic machine for closure and sealing with adhesive tape of boxes with variable format, carries out a series of operations which make it flexible for every use. The boxes, coming from several filling lines, are conveyed into a single closure station. The machine closes the four upper flaps of the boxes, adapting to the various sizes of the incoming boxes. The boxes are later sealed with adhesive tape, thus completing the work cycle. GEM XF520/670 was produced according to EC regulations.