Installations of this type do not need a load-bearing structure at altitude to ensure the handling of loads. They are therefore independent from the building and can be installed indoor, where there is no suitable supporting infrastructure, or outdoor.
The main structure of gantry cranes consists of load-bearing beams coupled through a supporting structure, consisting of a horizontal connection and two legs connected to the motorized heads-beams sliding on rails fixed to the ground, ensuring the longitudinal movement of the installation.