Portescap manufactures Brush DC-Ironless Rotor. Portescap is certified I.S.O. 9001-2000 for quality management, ISO 14001:2004 certified for environmental management, and ISO 18001:2007 certified for occupational health and safety. The Brush DC-Ironless Rotor has high acceleration attributes. It is highly efficient and features precious metal and graphite copper commutation. This Brush DC-Ironless Rotor has low losses and low electromagnetic interference.