20 Tons Double Girder Bucket Overhead Grab Crane

We are instrumental in exporting 20 Tons Double Girder Bucket Overhead Grab Crane which is mainly composed of a box girder, grab trolley, trolley traveling mechanism, cab and electric control system. Fetching device for grab bucket can grab bulk materials. Double girder overhead grab crane have opening and closing mechanism and a lifting mechanism, grab the four steel wire rope are respectively hung on the opening and closing mechanism and a lifting mechanism. Opening and closing mechanism driving closed grab, grab materials, when the bucket mouth closed, immediately start the lifting mechanism, so that the four steel wire rope average load of lifting work. When in unloading only started opening and closing mechanism, bucket mouth was open, tilt material. Double girder overhead grab crane hoisting mechanism in different outside, other parts of the structure is basically the same with hook bridge crane. Double girder overhead grab crane are widely used in port, dock, station freight yard, mines etc to lifting and loading all kinds of materials, such as bulk materials, logs, minerals, coal, sand stone, stone etc. This type crane can satisfy frequent using with heavy duty.