The electric wire rope hoist model CD1 and MD1 have the Features of compact, light, small-sized shape and smooth operation. It can be used not only in the overhead rails, but also in conjunction With many types of electric or manual cranes such as the single-girder Crane, the double-girder crane the cantilever crane and the gantry crane. The electric hoist model MD1 with double lifting speeds should be used in Cased where the hoist model CD1 with single speed cannot meet the Requirements for fine adjustments during precision operations.