It consists of four main parts,namely,the bridge structure,the travelling mechanism,the trolley and the electric equipment.The bridge is welded structure of box-type,individual drives are adopted for travelling mechanism on each end of the crane.All movements of the crane are controlled form the cabin.Either rigid shapes of steel(angles or tees) or flexible insulated cable shall be selected to be utilized as runway conductors and proposed in the order by the pirchaser.Max. and Min value of environment temperature,the sortof power supply,the voltage and other data shall be proposed by user when filling the order form.