A method for producing components or profiles from at least one solidifiable plastic mass in an injection moulding facility, said method comprising stationary mould components and mould components which are movable with respect thereto. The method includes injection of solidifiable plastic mass into a runner formed in the movable mould components and, from there, via connections either in portions into one or more mould cavities. The runner is enclosed by at least one stationary, temperature-controlled mould component. A continuous runner mass strand is formed with attachment mass strands, which is transported away from the casting site with increasing cooling and solidification and increasing length, together with the filled mould cavities and mould cavity portions. The runner mass strand, together with the connection mass strands, after its solidification and after opening the mould cavity or the mould cavities is separated from the component(s), and the component or the components is/are ejected.