24 volt DC motors are widely used as a drive source of all types of machinery, such as metallurgical industry of rolling mill drive, metal cutting machine tools, paper-making, printing, textile,dyeing, cement, plastic extrusion machinery. The 24 volt DC motors use polygonal structure with high space utilization rate. Its stator yoke is laminated and can be applied to the rectifier and withstand the fluctuation of the pulse current and the sharp fluctuation of the current. The magnetic pole is installed with precise positioning, so it can be well for good redirection. The insulation level of the 24 volt DC motor is F grade, and the insulation structure and the impregnation step are adopted, which ensure the insulation stability and good heat dissipation. 24 volt DC motors have the characteristics of small size, good performance, light weight, high output power, efficiency and reliability which can be contested with the international advanced-level motor.