It performs in fully automatically mode the forming of the lower side of the extinguisher, the punching of the upper side and the cutting alternate to the beading in order to create the coupling for the extinguisher welding. The loading and unloading of the piece and scraps are also carried out automatically, through a 4-pincers transferring device driven by two axis cards. The average production rate of the machine is 15 seconds for a complete extinguisher (two halves).