High-speed Steam Turbines
Carbon brushes used on high-speed turbine ring applications are the most critical applications in the world. Helwig Carbon has extensive experience supplying carbon brushes and brush holders for these applications for over 88 years. Our H702 and H704 low-friction graphite grades have been used extensively on Allis Chalmers, ABB, GE, and Westinghouse units around the world. Our constant force brush holder designs reduce maintenance and improve brush life.
Slow-speed Hydro Turbines
Helwig Carbon has a long history of supplying carbon brushes for slow-speed hydroelectric turbines. We have several low-friction graphite grades that perform successfully on these applications. We have worldwide turbine retrofit experience and proven field results on hydro applications. We can provide direct retrofits or custom designs that will maximize performance and improve brush life.