Tower systems can be used in combination with strand jacks or gantries can be equipped with its own jacking or climbing systems. Depending on the load and height of the gantries, external bracings might be necessary. It is possible to use towers in pairs (vessel lifts) or in multi-coupled lifting units (module lifts) to obtain the required lifting set-up. The Sarens Group has a broad experience in lifting with gantry systems, for example the lift of a top side of an oil rig of 12.000 tons and the installation of a 6.000 tons shipyard gantry on a height of 140m. Gantries can also be used in combination with skidding and transporting systems.
Different gantry systems:
The technical info about the different types of gantries can be found here.