Nema 23 Bipolar Stepper Motor 3.0A 28.5Nm Gearbox 15:1 D shaft

Key Features:
  • Step angle: 1,8 ± 5% °
  • Rated current/phase: 3.0 A
  • Rated voltage: 3.0 V
  • Phase Inductance: 3.5 mH
  • Phase resistance: 1.0 Ω
  • Holding torque: 1.9 Nm (28.5 after reduction)
  • Detent Torque: 0.06 Nm
  • Motor Length: 76 mm


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Stepper motors convert electric pulses into mechanical movement in stepped increments. The rotation has a direct relationship with the applied pulses. The sequence of the pulses dictates the direction of the motor shaft rotation, the frequency of the pulses dictates the speed of the shaft rotation, and the number of input pulses applied is directly related to the distance of rotation.

There are many advantages to using stepper motors. Among others, they have full torque at standstill, offer excellent response to starting and stopping, and provide open loop control. This stepper motor also have step accuracies of 5% of the step, which provides precise positioning and repeatability of movement. These features make it possible to achieve very slow speed synchronous rotation with a load directly coupled to the shaft—ideal for positioning applications.

This is two-phase stepper motors, which are the most common type of stepper motors. They operate by alternating the magnetic field the windings produce by changing the direction of the current in the windings. Thus, attracting or repelling the magnetic poles of the rotor causes it to rotate in step with the incoming pulses. Two-phase steppers come in unipolar and bipolar versions. This 23HS8430 stepper motor is a bipolar version.

One of the major benefits of a bipolar stepper motor is that they provide more torque at low speeds when compared to unipolar stepper motors. This means that bipolar stepper motors are best suited for applications that require high torque at low speeds.

Bipolar stepper motors require special drive circuit, called an H bridge. This 23HS8430 stepper motor is compatible with DM542 driver and 36 V Switching Power supply is recommended.

For information on how to connect this stepper motor to DM542, click on this link.

If you need help with incorporating this stepper motor into your project, feel free to contact us. We will gladly help you.


  • High torque
  • Smooth movement
  • High efficiency
  • Energy-saving
  • Low noise
  • Low vibration
  • High start torque
  • Low start current
  • Reliable performance.


Frame Size Nema23
Step Angle
Motor Length
Rated Voltage
Rated Current
Phase Resistance
Phase Inductance
Holding Torque
(N.m Min)
1.9 (28.5 after reduction)
Detent Torque
( Max)
Rotor Inertia
Shaft Single D Shaft
Shaft Diameter
8.0 ± 0.012
Lead Wire
Motor Weight (without reductor)



Step angle

1,8 ± 5% °

Frame Size

Nema 23

Number of Phases


Rated current/phase

3.0 A

Rated voltage

3.0 V

Phase Inductance

3.5 mH

Phase resistance

1.0 Ω

Holding torque

1.9 Nm (28.5 after reduction)

Detent Torque

0.06 Nm

Rotor Inertia

480 gcm²

Shaft Diameter

8 mm

Number of Wires


Motor Length

76 mm