Hard coal brushes for current contacts

Lampar, specializing in the production of carbon brushes of any type and dimension for electrical machines, manufactures and sells hard coal brushes for current contacts.

Hard coal is obtained from amorphous carbons, it has solid structure, high hardness and it is sufficiently abrasive to have a cleaning effect on the collector; in case of difficult switching and high peripheral speed must be used hard coal with high resistance and graphite structure.