The shield tunneling gantry crane is specially developed and designed for the transportation of slag and equipment in subway tunnels. According to the construction requirements and the requirements of the shield tunneling equipment, it is capable of automatic slag removal, automatic slag dumping, and automatic circulation to complete the material transportation work involved in tunnel construction. In addition to completing slag removal and unloading, it can also perform tasks such as underground hoisting of tunnel segments and assembly of shield tunneling construction. The entire mechanism consists of a gantry, a large vehicle walking system, a small vehicle walking system, a small vehicle lifting system, a small vehicle rotating mechanism, a lifting and flipping mechanism, a flipping support mechanism, an electrical control system, a safety alarm system, and a PLC program control system.

The lifting mechanism of the trolley can rotate 180 °, which can meet the construction requirements of different slag discharge directions. The specific requirements are determined by the construction unit.