AMETEK ROTRON's line of transportation products were the first Electrically Commutated Brushless DC (ECDC) motors, blowers, fans, and pumps introduced into the Heavy Duty Transportation market. Since the mid 1980s, ROTRON has remained legacy supplier of these products, while continuing to innovate technically. Never settle for "Brushless-in-name-only". Always request ROTRON Brushless products for your heavy duty transportation needs.