What's the difference between a CD1 and an MD1 electric hoist?

The lifting speed of CD type electric hoist is normal speed, which can meet the general requirements of use: MD type electric hoist has two kinds of lifting speeds - normal speed and slow speed. When working at a slow speed, it can meet the requirements of precision loading and unloading, sand box mold closing, machine tool maintenance and other fine operations. Therefore, the use range of MD type electric hoist is wider than that of CD type electric hoist.