Your country is not included? Please visit our global website Language KNF Pumps in 3D Sand Printing Smart Slab developed in an innovative architectural project by researchers at ETH Zurich Researchers at ETH Zurich are producing a lightweight, intelligent concrete ceiling as part of the Smart Slab architectural project. The Swiss university is using an innovative manufacturing method to create the slab’s formwork with a 3D sand printer from Voxeljet AG, Friedberg (Germany), fitted with KNF pumps. The benefits of digital production The Smart Slab researchers used 3D printing to produce not the construction elements themselves, but their formwork – i.e. the negative mold. They worked with a large-format 3D sand printer from Voxeljet. This contains two KNF membrane liquid pumps, each of which is responsible for supplying cold binder (NF 60 KT DC) and removing excess raw material (NF 60 KT DC). The production of the formwork is the most labor-intensive step in concrete construction, especially for non-standard components. One of the eleven Smart Slab building segments is carefully lowered into position Production at the push of a button Do you want to find out more about our customized pump solutions and service opportunities? Get in touch with our local sales representatives.