In order to set new standards for European metro networks with the Grand Paris Express and to virtually double its size, in the course of the project 200 km of metro lines are expected to be built by 2030. The space-saving and efficient HKS 500 separation plant and the LW530 centrifuge are used for the Vertical Shaft Sinking Machines (VSM) deployed for the project. To further increase performance, a flocculant station provides polymers to the centrifuge.