A grab bridge crane primarily consists of a box-shaped bridge, a grab trolley, a trolley operating mechanism, a driver’s cab, and an electrical control system. The grab is the loading device. The grab trolley is equipped with a lifting mechanism and an opening and closing mechanism. The grab is wound with four steel wire ropes on lifting and closing drums. The opening and closing mechanism drives the grab to close and grab material. Once the bucket mouth closes, the lifting mechanism is immediately activated, evenly loading the four wire ropes for lifting. To unload, only the opening and closing mechanism is activated, causing the bucket mouth to open and tilt the material. Aside from the lifting mechanism, the rest of this crane’s structure is essentially the same as a hook bridge crane.
