Struktur dan troli keluli dikemas dengan kain bukan tenunan. Pengenalan ringkas untuk Double Girder yang didorong oleh Motor Travel Overhead Bridge Crane 20ton.
Below are examples of different overhead traveling bridge crane 7 ton capacity top running double box girder hydraulic lift stacker crane with 48" load
This model crane mainly consists of bridge, end girder travelling mechanism, Winch trolley and electrical appliances. They are applicable to the transfer,