A miniature DC deceleration motor is essentially a DC electric motor, which typically has a high speed after being powered on, at least a few hundred revolutions per minute. Higher speeds can reach tens of thousands of revolutions per minute. In this case, the torque of the motor is small and cannot drive heavy objects. However, due to the low speed and high torque characteristics of DC motors, this cannot be replaced by AC motors. In this way, we can adjust the speed of the DC motor through a reducer, or achieve stepless deceleration through electronic speed controllers. Widely used in various small light industry machinery, packaging, food, textile, cosmetics (beauty) machinery, printing equipment, instruments, and various automation equipment, production lines.
      The efficiency of micro DC deceleration motors is generally higher than that of other types of motors, so to achieve the same output power, the volume of DC motors is generally relatively small. For situations where the installation location is limited, micro DC reduction motors are relatively suitable.
      A characteristic of micro DC deceleration motors is that the motor can automatically slow down according to the size of the load to achieve maximum starting torque. This is quite difficult for AC motors. In addition, DC motors are relatively easy to absorb sudden changes in load size, and the motor speed can automatically adapt to the load size.
      As the center of the DC deceleration motor, the DC reducer is the key equipment for adjusting the speed of the DC motor. Its upper end is connected to the AC power supply, and its lower end is connected to the DC motor. The DC speed controller converts AC power into two output DC power sources, one input to the DC motor's magnet (stator) and the other input to the DC motor's armature (rotor). The DC speed controller adjusts the speed of the DC motor by controlling the DC voltage of the armature. At the same time, the DC motor provides a feedback current to the speed controller, which determines the speed of the DC motor based on the feedback current. If necessary, the armature voltage output is corrected to adjust the motor speed again.
      DC speed controllers are widely used in industries such as CNC machine tools, papermaking and printing, textile printing and dyeing, fiber optic cable equipment,   packaging machinery, electrical machinery, food processing machinery, rubber machinery, biological equipment, printed circuit board equipment, experimental equipment, welding and cutting, light industry machinery, logistics conveying equipment, locomotives and vehicles, medical equipment, communication equipment, radar equipment, satellite ground receiving systems, etc.