LDY metallurgical single girder cranes is used for lifting of melting metal sites of metallurgy, casting, its matching lifting mechanism is YHⅡ metallurgy electric hoist, the weight is less than 10 t. The bottom of main beam using special insulated heat . Working ambient temperature is -20℃- 60℃, humidity no more than 50%. Crane design and manufacture meet the State administration of quality supervision, inspection and quarantine of the quality of writing "2007" document No. 375, lifting other molten metal items and lifting hot solid metal location can also refer to the selection.