The single girder is the most common crane, it is generally used for light applications normally up to 10 tons.
The double girder structure is used for heavier applications up to 125 tons and can reach more than 100 ft. span. It can also be used to gain in lifting height because the hoist of the double girder crane is top running and the hook is fitted between girders.
The box beams are made for large capacities and large spans when the W type beams are no longer sufficient.
Suspended (Under Running) – The rails of a suspended overhead crane are installed on the ceiling of the building so do not require columns, leaving the floor free of obstacles. On the other hand, for the same reason, this type of bridge is limited in capacity.
Top Running – The deck is placed on the rails and allows to reach a greater capacity than the suspended type because the rails are installed on the columns of the building or the self-supporting structure.
We manufacture your crane according to your dimensions, needs and specifications.
When the installation of a structure is difficult or impossible, the crane on legs will be considered, usually for external use.