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Why do cranes use hydraulic motors and not electric motors?

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i shall state other reasons. hydraulic motors can be self locking, without requiring any extra items. it depends on the design of motor and its valving. an electric motor requires some type of locking device, in the event of power failure. read more

Very simple. Electric motors cannot be used to lift the heavy weights. The main reason is torque, speed, power consumption and efficiency of the motor. Due to heavy weight lifting, electric motor need, high power consumption, high torque. And electric motor has rotating slip and size of the motor also need more. read more

Motor used in electric train is 3phase induction motor and dc series motor because both motors provide high starting torque which is veey essential because in trains there are many compartments full of passengers,so it requires high torque during initial start up. read more

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