Stepper motors are popular for their ability to position accurately as well as their ease of use. Both the amount of rotation and the speed are controlled easily with the same digital square wave pulse signal. Unlike servo motors, stepper motors do not need an encoder to operate. Example applications of stepper motors are CNC machines, index tables, robotics, scanners, and more recently, 3D printers.
There are a variety of stepper motors available in the market. The most popular type of motor is the hybrid type, which includes the permanent magnet from the permanent magnet type, and the tooth construction from the variable reluctance type. There are 2-phase, 5-phase, and high resolution designs. Motors can also be pre-assembled with additional options for different purposes. For example, there are motors with an electromagnetic brake, encoder, or gearhead.
- Performing quick indexing operations over short distances
- Achieving high-speed reciprocating motion
- Performing indexing operations of a large inertial load
- Performing indexing operations with a higher stop accuracy
- Performing vertical positioning operation with power-off braking
- Performing closed-loop positioning operation
APPLICATION: Performing quick indexing operations over short distances
SOLUTION: High torque 2-phase stepper motor
that deliver high torque at low speeds are suitable for applications such as indexing operations over short distances that require high acceleration and deceleration rates. Stop accuracy of stepper motors is +/-3 arc min or (+/-0.05°). The small error does not accumulate from step to step.
APPLICATION: Achieving high-speed reciprocating motions
SOLUTION: High torque 5-phase stepper motor
PKP Series 5-Phase Stepper Motor
APPLICATION: Performing indexing operations of large inertial load
SOLUTION: Geared type stepper motor
A can rotate much higher inertial loads because of its ability to generate high torque and reduce the inertia ratio between the load and the motor. Larger inertia ratios can cause overshooting and undershooting during starting and stopping, which can add missed steps or increase settling time. Our spur gears offers improved torque and backlash characteristics.
PKP Series Geared Type Stepper Motor
For space-saving machine designs, a geared type motor can drive heavier loads while keeping the motor frame size compact.
APPLICATION: Performing indexing operations with higher stop accuracy
SOLUTION: High resolution type 2-phase stepper motor
A has 100 rotor teeth instead of 50 rotor teeth. The increase in rotor teeth doubles the basic step resolution of standard motors from 200 PPR to 400 PPR, and offers better stop accuracy (2 arc min or 0.034°).
APPLICATION: Performing vertical positioning operation with power-off braking
SOLUTION: Electromagnetic brake type stepper motor
An offers a power-off-activated electromagnetic brake which provides frictional torque for holding a load vertically. When power is accidentally cut off due to a blackout or other unexpected events, the electromagnetic brake holds the load in position to prevent it from dropping or moving. With an electromagnetic brake, the motor current can also be turned off at standstill to suppress heat or lower power consumption.
PKP Series Electromagnetic Brake Type Stepper Motor
APPLICATION: Performing closed-loop positioning operation
SOLUTION: Encoder type stepper motor
An offers a pre-assembled compact encoder that provides a pulse signal for a host controller to track its position. Encoders are offered at either 200 PPR or 400 PPR to match the motor's basic step resolution. Voltage (TTL) and line driver types are available with 3 channel output (A-phase, B-phase, and Z-phase).
PKP Series Encoder Type Stepper Motor
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