Molding device with fluid circuit(s)

A molding device of the type installed on a frame of a mold carrier unit, which mold carrier unit is positioned on a carousel of a blow-molding or stretch blow-molding machine, which molding device comprises a mold carried by said frame, and including two half-molds joined together by a single shaft on which said half-molds are hinged by means of bearings capable of allowing said half-molds to rotate between a closed position and an open position, and at least one of said half-molds comprises channels that form an inner circuit for the circulation of a fluid, wherein said hinge shaft is mounted fixed relative to said frame of said mold carrier unit and comprises bores provided for receiving and returning said fluid and in that rotary fluid seals that are connected to one of said half-molds with which said rotary fluid seals are associated are mounted on said hinge shaft and interact with said bores to supply said inner circuit.