There are three main designs for freestanding jib cranes, in terms of how they can be mounted and installed:
Base-Plate Mounted: These are the easiest to install and the most popular design. The mast is secured by bolting a base plate onto a reinforced concrete foundation and then reinforcing the mast with gussets.
Foundation/Insert Mounted: These have a welded steel plate at the bottom of the mast which is anchored during the first-pour concrete footing. A second concrete pour supports the mast—eliminating the need for gussets.
Sleeve-Insert Mounted: A sleeve is welded to a steel plate, which is used to position the sleeve by anchoring it to a first-pour concrete footing. A second pour then supports the sleeve and the mast is inserted into the sleeve, leveled, and then welded in place. This design allows for relocation of the jib system, if necessary, without damaging the mast.
Compared to other jib crane systems, freestanding systems offer the highest capacities, longest spans, and greatest amount of rotation. However, freestanding jib cranes are among the most expensive systems and the most permanent setup due to the special foundation that is required to anchor and secure the crane and support the load during a lift.