A carbon brush is a sliding contact used to transmit electrical current from a static to a rotating part in a motor or generator, and, as regards DC machines, ensuring a spark-free commutation. A carbon brush can be Made of one or more carbon blocks.
Industrial carbon brushes still have an extensive field of application on big and medium commutator machines with high electrical and mechanical duties. The range includes commutator equipment, slip ring rotor, and other diverse current transmission systems. The base is a wide product assortment of carbon grades of variable compositions. Thus different specific resistances, specific densities, hardness- and load conditions can be realized.
All these parameters obtained, allow an adaption of carbon brush grade to the needs of the motor-manufacturers and designers. Diversified application and field of operation determine the dimensions, designs, drawings and shapes of our industrial carbon brushes.
Applications and customers :
- DC and AC motors, generators, three-phase commutator motors, thyristor- controlled DC-motors, traction motors, variable speed-motors, exciting generators, rotor-feed shunt-wound motors,, series-wound motors.
- Trolley-busses, mine cars, tramways, steel-cement-paper mills, Schrage systems in the textile and plastic industry
- Power converters of all kind, frequency, converters, battery-driven cars, extruders, earthing systems for railway and ships, fork lift trucks, lifts, cable cars, mine winding units, cranes and lifting systems, pumps
- Carbon grades for higher altitudes