Highly modular loading tools

A loading tooling for thermochemical treatment of parts, the tooling comprising at least first and second loading stages stacked one on the other in separable manner, each loading stage comprising a rack extending in a horizontal plane, the rack being supported by four legs extending in a vertical direction with the legs of the second loading stage standing on the legs of the first loading stage, and the rack having a plurality of support arms secured thereto, with the plurality of support arms of the first loading stage presenting an arrangement that is different from the arrangement of the plurality of support arms of the second loading stage;

• wherein the rack of the first loading stage comprises a central crossbar, a first plurality of support arms extending on either side of the central crossbar in a direction parallel to the horizontal plane of the rack, the arms of the first plurality of support arms each presenting a free end and being spaced apart from one another at a first distance, and wherein the rack of the second loading stage comprises a central crossbar, a second plurality of support arms extending on either side of the central crossbar in a direction parallel to the horizontal plane of the rack, the arms of the second plurality of support arms each presenting a free arm and being spaced apart from one another by a second distance different from the first distance.