Wall traveling jib crane is a special crane used in the workshop of machine manufacturing and assembling. It travels along the rail mounted on the wall or other support structure on the elevated orbit of a multilayer assembly shop. It can make full use of the workshop space, save the more manufacture place and can operate flexible. The wall traveling jib crane is divided into two kinds according to different main girders, we use electric hoist for single girder structure, use rope trolley or standard trolley for double girder structure. The size of traveling rail can be designed based on the user's requirements.