Single girder gantry crane, it is a rail traveling medium type crane, it uses together with MD1,CD1 type electric hoist. The span length range is 10-30m, the lifting capacity range is 3-32ton, working environment temperature is -20~40℃. This crane is widely applied to do loading and unloading work in outdoor. Such as material stocks area, cement plant, granite industry, construction industry, and engineering industry and so on. It has features of beautiful and durable appearance, perfect performance, low cost, easy maintenance, high adaptability and so on. It is composed of beam, support legs, crane travelling mechanism, trolley, electric equipment and so on. It could be special design and customize by clients’ requirement.