A stepper motor is a brushless DC electric motor that rotates in discrete step increments. Unlike standard DC motors, a stepper motor can hold a position when energized. They are known for converting a train of input pulses into precisely defined increments in the shaft's rotational position. Stepper motors are typically controlled digitally as part of an open-loop system, making them simpler and more rugged than closed-loop servo systems.
Several manufacturers produce stepper motors, including Shinano, Minebea, Nidec, MOONS, SANYODENKI, Oriental Motor, and OSMTEC. Stepper motors come in various types, including permanent magnet, variable reluctance, and hybrid rotors, each suited for different applications. They are used in various applications, such as 3D printers, CNC machines, robotics, and precision positioning equipment.
The price of stepper motors varies widely based on torque, size, and features. Prices can range from around $15 to over $2000. Availability is generally good, with many online retailers and manufacturers offering a wide selection of models.
