A travelling gantry is a massive crane system designed for movement along a fixed set of rails, providing comprehensive lifting coverage over a large, linear workspace such as a container port, railway yard, or shipbuilding berth. Unlike stationary gantries, the travelling gantry incorporates a motorized travelling mechanism that allows the entire crane structure to traverse the length of its rail track, carrying heavy loads over long distances. This capability is crucial for applications like loading and unloading container ships, where the crane must move alongside the vessel to access different holds. The system consists of a gantry structure, hoisting mechanism, trolley running mechanism, and the trolley traveling mechanism. The trolley fitted on the crane beam moves transversely, enabling three-dimensional load positioning. Key users include rail-mounted gantry (RMG) cranes at intermodal terminals, which stack containers high, and super shipyard gantries that shuttle massive hull blocks from fabrication halls to the dry dock. For consulting on implementing a travelling gantry system for your yard, please contact our engineering team.