LH type electric single girder crane is a kind of track running light and small crane which is used with CD1 type (single speed) or MD1 type (two speed) electric hoist. From the weight of 2 ~ 10t, span of 7.5 ~ 22.5m, the working level of A3 ~ A5. For machinery manufacturing, assembly, warehouses and other places for general lifting load and unloading operations. The working environment temperature of this product is -25 ~ + 40 ℃, which is not suitable for use in places where there is a fire hazard and explosion of dangerous media. It is not suitable for lifting metal and toxic, flammable and explosive products.