Answer:
The stepper motor is a kind of precise mechanism which directly transfers electrical pulse to the angular position. The degree of the angle depends on the number of pulses. Additionally, it contains a set of simple open-loop control system with supporting stepper motor drive device.
The unique characteristics of our motors are:

1. Precise position control
Determine the axis of rotation angle in accordance with the number of input pulses to

2. Unlimited speed adjustments
Within the stepper motor, the speed of the shaft is in accordance to the frequency rate of the output pulse.

3. Rotation, emergency stop and lock function
In the stepper motor, the rotation type is the forward and reverse rotation. The forward and reverse rotation is controlled by the polar change. When the motor is locked, the torque output is still functioning (current still exists even there is no output command of rotation commands).

4. High precision control
The stepper motor is under high precision control during the low frequency pulse output. Additionally, with the low frequency pulse input, the motor shaft still rotates slowly. Under this condition, the motor doesn’t rely on the gear box to adjust the drive, which avoids the loss of power and the angular position deviation.

5. Longer service life
For stepper motors, there is no need to adjust the phase through the brush or commutator like normal DC motors. Therefore, the friction in the motor is largely reduced and meanwhile, the motor service life lasts much longer.