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Helwig’s Carbon Brushes, A guide for Elevator Technicians
Over the years, manufacturers, contractors and brush suppliers have searched for the “magic” dustless brush grade or that impossible, frictionless material. There is no magic brush grade, but you can maximize brush life and equipment performance by taking the appropriate steps: Check that there is proper spring pressure. Check for proper current density. Check on…
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Helwig Carbon’s Comprehensive Guide for Industrial and Railway Technology
The name “brushes” comes from bundles of tiny copper wires, which were used as elastic contacts at the starting period of the electrical engineering industry. The term “carbon brush” appeared with the change to materials made out of graphite and carbon. Carbon brushes have been developed for several decades: they are also indispensable hardware for…
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Helwig Carbon Celebrates 85 Years of Innovations
The technical product innovations developed by Helwig Carbon Products have received universal acceptance over many decades, have been copied by carbon brush manufacturers world-wide, and are still in use today. There is no question that the development of carbon brushes was key to the future of electrical machines as the primary drive system of the…
