Horizontal continuous motion cartoning machine type A3 suitable to pack products into pre-glued cartons with aeroplane or reverse tuck-in closure and/or hot-melt glue. The machine is pre-arranged for the fitting of various automatic product feeding systems. The machine is mechanically operated. Simple and quick DWS (Digital Watch System) size change-over. Multilingual and simple to use “touch screen” control panel with icons. Complete access for size change-over and normal operations.