Goliath / Gantry Cranes are self-propelled cranes running on rails installed at ground level. Such cranes are typically used at -

• Construction sites
• Ports and harbors
• Workshops where existing columns cannot bear the wheel loads of a bridge crane
• Workshops with low roof tie height that might restrict the height of lift of a regular bridge crane
• Locations where bay lengths are excessive
• Locations where bay lengths do not remain constant
• Sites / projects where the crane itself needs to be relocated from one place to another 
• Locations where loads are to be shifted from points outside the crane span as in the case of an overhang on either side of the rails