On the average power stepping motor not self-locking, electric locking, in order to realize power self-locking, need to add a at the end of the step motor brake device (Brakes), when the motor is powered on, the brake is on electricity, brake from the stepper motor output shaft, the motor running, when power outages, brake release tightly around the motor shaft. General Z axis power to consider the lock, in order to prevent the equipment slide, so I need this kind of brake stepper motor. brakes brake device needs to 24 v dc power supply, the brake power to drive the power supply to synchronized open or shut off, the motor power lose self-locked brake power is effective, for electric brake failure motor rotation. Product recommendation: main products: stepper motor drives stepping motor, brushless motor, servo motor, stepping motor drive, brake motor, linear motor and other kinds of models of the stepper motor, welcome to inquire. Telephone: