LDmodel single girder motor crane is characterized by more reasonable strueture and higher strength steel as a whole,used together with CD1modelMD1 model electric hoist as a complete set,it is light duty crane with a capacity of 1 to 20tons. The span is 7.5-28.5m.Working grade isA3-A4. Working temperature is -25 to 40ºC This product is widely used in plants, warehouses,material stocks to lift goods.It is prohibited to use the equipment in the combustible, explosive or corrosive environment. This product has two operational methods,ground control or operational room which has open model and closed model and can be installed on left or right side according to the practical situation.And the direction of entering the gate has two forms,from the side and theend in order to satisfy the users, choice under different conditions.