... rope hoist specialist Introduction: 1. CD1, MD1, HC1, HM1 wire electric hoist is a widely used in enterprises which need lifting ... devices. MD1, HMD1 electric wire rope hoist is based on CD1, which changes hoisting mechanism to dual stator-winding induction generator. It ... has 2 types’ speeds: normal speed and slow speed. It is different with CD1 rope electric ...