Abstract: An apparatus for the processing of molten metal including a crucible furnace for receiving magnesium scrap and for converting the magnesium scrap into molten metal, a robotic arm positioned so as to extend into the molten metal in the crucible furnace and having a three-axis range of motion. The robotic arm has a connector formed thereon so as to receive a tool. The tool can be a pump which is connected to the robotic arm means so as to transfer the molten metal from the crucible furnace to another location. The pump includes a pump nozzle which is connected to the robotic arm and extends from the robotic arm into the molten metal, an outlet conduit fixedly positioned relative to the crucible furnace, and a pump connected to the pump nozzle and to the outlet conduit. A mixer member is attachable to the connector of the robotic arm to as to extend into the molten metal for the purpose of pushing the magnesium scrap into the molten metal.