A novel application of CNC portals in assembly technology, "reviewed the Liebherr Verzahntechnik GmbH, Kempten (see figure). A six-axis, area-wide charging portal receives both transport as well as assembly functions. The predominant feature is the rotatable about two axes hand, each on the job and grab their tools themselves change. the exhibition was the installation of check valves of different sizes. the valve parts are introduced into system pallets.