DC built-in motors are integrated in consumer devices and in electrical machines. One can find Groschopp drives in electrical switchgears for medium and high voltage, special pumps and industrial automation. They do not need external power electronics and for that reason they are cost-effective in speed controlling.
The KE series are skeleton-type DC-drives with revolving armatures. They can be designed as series (universal motor) or shunt motor. The series motor has a high starting torque, but its speed is heavily load-dependent. The speed of the shunt motor remains nearly constant and is controlled by the armature voltage. On request, motors can be foot-mounted or supplied with a different flange and/or drive-shaft diameter.