The MD1 wire rope electric hoist is a derivative of the CD type electric hoist, which means that it is similar in other aspects. The MD1 wire rope electric hoist has two speeds, namely single speed and double speed.CD type wire rope electric hoist, also called CD1 wire rope electric hoist, is a hoist that was born earlier. It is characterized by fast lifting speed. The lifting speed of this hoist is easy to remember, basically 8m/min.Its volume is relatively large. As the lifting height increases, the thickness of the wire rope and the size of the drum will change.CD1 is commonly known as single-speed type, and there is another model called MD1 double-speed type. As the name suggests, it has two speeds.For any questions about selection, please feel free to consult Rizhi.