Crane duty motors are specially designed for frequent starts/stops & reversing required in ther cranes & lifts of all types. They can also be used in application such as --material handling, weirs&sluices, auxilary motors in rolling mills or wherever intermittent drives are required.
Kirlosker Electric manufactures a wide range of AC moters. These motors are specially designed for crane applications and other arduous duties of auxiliary steel mill drives such as transfer cars, titers, pushers, coilers, winchers etc. Both wound rotor (slip ring) motors and motors are used depending on the applications and controls.