... class is M3, Monorail electric hoist. 0.5t ~ 20t Wire rope Electric Hoist With Monorail Trolley: CD&MD model wire rope electric hoist is a kind of ... safety limiter in both up and down directions. MD model electric hoist has normal lifting speed and slow lifting speed which make ... , railway, wharfs and warehouses. The standard capacity of this type electric hoist: 0.5T, 1T, 2T, 3T, 5T, 10T, 16T, 20T. ...