The stuffing machine is the tool that allows the packaging of cured meats, through the extrusion of the mixture into the natural casing (casing) or synthetic. It is composed of a metal cylinder placed in a horizontal position inside which there is a piston operated by a crank. The cylinder has an opening at one end consisting of a (more or less long) tube on which to place the casing, and at the other end an opening (of the diameter of the cylinder) in which to introduce the mixture that will be extruded into the casing.