Oriental Motor: 2-Phase Stepper Motors (PKP Series)

High-Torque 0.9° Stepper Motors (Motor Only)

Introducing our new PKP Series High-Resolution, High-Torque 0.9° stepper motors. By using a high-torque stepper motor, a torque increase of 1.2 to 1.7 times the PK Series standard type stepper motor of the same size (max. holding torque) has been achieved.

These stepper motors are available in: 1.65 in. (42 mm) and 2.22 in. (56.4 mm) frame sizes. Encoder options are available for our standard PK Series models.

Increased Resolution (compared to Standard Type Stepper Motors)

The number of rotor teeth has doubled to 100 compared to 50 with the standard type stepper motor. As a result, the basic step angle becomes 0.9°/step which is half that of the standard type stepper motor.

Avoidance of Resonance Regions

If the pulse speed is within resonance region, vibration may increase. Resonance regions can be avoided by switching to a 0.9° high-resolution type stepper motor.

Downsizing

The PKP Series stepper motors provide torque equivalent to a stepper motor of the next larger frame size.

Improved Stopping Accuracy

The stopping accuracy improves as the torque increases while minimizing the negative effect of the frictional load.

High Resolution Type Stepper Motors

These high resolution stepper motors have half the step angle of standard stepper motors. The high resolution type increases motor resolution from 200 steps/revolution to 400 steps/revolution. Smaller step angles can be achieved by half-step driving or microstep driving. Other than having twice as many rotor teeth as standard stepper motors, all other structures are exactly the same as standard stepper motors.

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