A gantry crane is what one commonly sees on high-rise buildingsand other construction sites wherein there is the need for objectsto be lifted way up high and moved from one point to another. Themovement of this heavy duty and very useful tool may be limited tolifting and moving, but the help that it can offer is just amazing.No human can quickly and safely move a heavy object while on thetop floor of a building. As a result, big scale constructions orthose that involve high buildings and heavy lifting will certainlyneed to have this handy tool with them.A gantry crane consists of a bridge that is supported by two ormore legs that are parallel to each other and are on fixed rails.These cranes were first used by ship builders since most of theobjects used were heavy, and the job entailed wor