The role of carbon to hammer
There is also a function of the rotor and the brush component transposer function. Brushless motor without commutator. Carbon materials: electrographite, impregnated graphite, graphite, metal and other metal alloys, the characteristics of carbon brush solid curing agent function.
You say is the driving motor for the brush hammer, brush is when high-speed rotation of the rotor the power transferred to the rotor and the stator coil of electromagnetic generated magnetic rotating rotor.