The commutators mainly include hook-type, slot-type, and flat type specifications. It is made of imported raw materials. The function of the products has reached the international advanced level. It is widely used in the fields of electric tools, household appliances, automobiles, and motorcycle motors. The collector rings, brush holders and terminal boards have various specifications and models.

It is used in automobile generators, gasoline generators and other fields. The commutator is used for rectification, its role is to make the direction of the current in the armature winding alternating, so as to ensure that the direction of the electromagnetic torque is always the same.

In the generator, the commutator for dc motor can make the alternating potential in the element become the inter-brush direct current potential; in the electrical sense it can make the external direct current into the alternating current in the element, producing a constant direction torque.