Commutator series motor is a original parts which could keep the motor of DC permanent magnet moving on . it is a multitude of copper elements insulated (spaced) among each other and reinforced with insulation compound .Each individual copper element is a bar joined on one end via connection in form of hook or groove with the end of the armature winding coil. Electric current is transferred to commutator through two slip carbon contacts – brushes exerting pressure onto the commutator surface (brush track) by force of a spring.