Manufacturing of Commutators
for Railroad Vehicles



Commutators function to change the direction of the current flowing in a coil rotating between magnetic fluxes to generate torque in the fixed rotation direction.
Although it is necessary to adjust the surface conditions of the commutator by shaving it periodically due to the intermittent contact of the commutator with the brush, a commutator cannot be used once it reaches its wear limit.
At Fuji Electric Machine Manufacturing, we apply our unique technology throughout the entire manufacturing process of commutators, enabling us to repair individual commutators for old DC motors to provide a level of recovery that is equivalent to using new parts and further extend the operating life of your motor.