This gantry crane is primarily used in bridge construction and operates at a slow speed. It consists of a gantry, a winch trolley, a trolley operating mechanism, a driver’s cab, and an electrical control system. The gantry is a truss structure, offering advantages such as light weight and strong wind resistance. It comprises a main beam, upper end beam, outriggers, lower end beam, a traveling trolley, and platform railings. The main beam is a triangular truss structure with tracks laid on it for the trolley to move laterally along the main beam. The outriggers are either box-type or steel tubular. The trolley is equipped with a winch, making it compact and lightweight.