A laboratory equipment for the production of pipes was proposed and developed. With this method, the molten metal was sucked into a metallic mold by a vacuum pump and then poured out. Experiments were made on pure Al, Al-2%Cu and Al-5%Cu alloys. Smooth surface pipes were produced and their thickness was controlled by the holding time. Their mechanical properties were higher than those of conventional metallic mold castings. Transient variation of metal height and suction rate in mold with time were calculated using simple assumptions. Agreement between theory and experiment was obtained qualitatively.