CD type electric hoist belongs to a type of wire rope electric hoist and is also a common type of wire rope electric hoist. They are basically similar in structure. The difference between MD type electric hoist and CD type electric hoist is that MD type electric hoist is a dual speed electric hoist.
The normal lifting speed of CD type electric hoist is constant speed, which can meet general usage requirements. The MD type electric hoist has an additional slow speed compared to the CD's constant speed. When working at a slow speed, it can meet the requirements of precision operations such as cleaning, loading and unloading, sand box mold closing, and machine tool maintenance. So the MD type electric hoist has a wider range of applications than the CD type electric hoist.
The MD type electric hoist has two motors, one more lifting motor than the CD type electric hoist. This has led to the MD type electric hoist having two lifting speeds.