Abstract: The invention relates to a process and machine usable in mass-slaughtering for pulling off the belly strips from a hog carcass. The machine according to the invention is characterized in that it comprises an optical type sensor comprising a cell mounted on a supporting structure and capable of assessing the height of the suspended hog, between a reference place traversing the hooking bar on which the hog is suspended, and the plane traversing the hog's snout, and capable also to stop the vertical movement of the structure so as to place the head at a height varying between 700 mm and 900 mm above the plane.

Abstract: The invention relates to a machine comprising:a chassis movable with respect to a supporting structure,a clamp comprising:two jaws,means for controlling the opening and closing of said jaws,passive counter-jaws operationally coupled to said jaws,and means for controlling said counter-jaws with respect to said jaws.The invention finds an application in the mass-slaughtering of hogs.