DC Motors operate on Direct Current. The primary advantage to DC Motors is speed adjustment and high torque characteristics.


The most common manufacturers of DC Motors are General Electric, Reliance Electric, and Baldor Electric. Westinghouse Electric, US/Emerson Electric, and Allis-Chalmers no longer produce DC Motors. European manufactures of DC Motors include: ABB, ASEA, Bull, Siemens, Brown Boveri, TT Electric, Thrige, and Leroy Summer. DC Motors have two sets of DC windings. The Field Windings are stationary and the Armature rotates. By applying different voltages to the different sets of windings, you can get different speeds and different performance characteristics. The armature voltage can be adjusted from full voltage all the way to zero. When you reduce the armature voltage, you decrease the speed and HP proportional with the reduction in voltage. Reducing the Field Voltage is called Field Weakening. By reducing the Field Voltage, the motor will speed up beyond its base speed (full voltage on the armature and fields). DC Fields are come in different configurations including Series, Shunt, Stabilized Shunt, and Compound.

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DC motors are used extensively in various industries for applications in which they are the ideal option. DC Motors operate on Direct Current. The primary advantage to them is the speed adjustment and high torque characteristics.


DC Generators, when driven, produce DC Electric Power. DC Generators have all of the same characteristics as DC Motors.


A DC Mill Motor is a particular DC Motor class built in a clamshell-style frame. This type of DC Motors is predominately used in the Steel and Mining Industries. DC Mill motors can be serviced while in place rather than having to be removed from the application to service.

DC Motors

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900
1200
4570
DPFVBB
General Electric
USED

DC Generators

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Frame:

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Arm Voltage:

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150
1800
504ATY
DPBB
General Electric
USED

DC Mill Motors

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Frame:

Enclosure:

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250
450
618AER
TENVBB
General Electric
Used- Looks Rebuilt