Actuonix 25mm 165:1 P8 Micro Linear Stepper Actuator

ActuonixSKU: RB-Fir-237
Manufacturer #: P8-ST-25-165

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  • Actuonix 25mm 165:1 P8 Micro Linear Stepper Actuator
  • Offers high accuracy
  • Comes in 25 mm stroke length
  • Provides long life brushless motor
  • Gear Ratio: 165:1
  • Temperature Rise: 80 °C Max

The Actuonix 25mm 165:1 P8 Micro Linear Stepper Actuator is a complete, self-contained linear motion device. It comes in a 25 mm stroke length option to allow these to fit for a wide variety of applications.

The brushless stepper design makes the P8-ST one of the longest-life actuators. The P8 stepper is designed to push or pull a load axially along its full stroke length.

The speed of travel is determined by the step frequency, and maximum force by the current applied. When power is removed the actuator will hold its position unless the applied load exceeds the back drive force. Actuators should be tested in each specific application to determine their effective life under those loading conditions and environment.

  • 1 x Actuonix 25mm 165:1 P8 Micro Linear Stepper Actuator


  • Stroke length: 25 mm
  • Closed Length hole to hole: 60 mm
  • Full Step: ~0.0018 mm
  • Stroke: 25 mm
  • Maximum Side Load: ≈ 0.10 *Maximum Force
  • Gear Ratio: 165:1
  • Backdrive Force: 25 N (No power) | >100N (Power applied)
  • Temperature Rise: 80 °C Max
  • Input Voltage: 0-4.2 VDC
  • Max Current (per phase): 256mA
  • Operating Temperature: -10 to +40 °C
  • Audible Noise: < 40 dB at 45 cm low noise settings
  • Ingress Protection: IP-54
  • Mechanical Backlash: < 0.5 mm
  • Inductance (per phase): 4.5 mH at 1 khz
  • Resistance (per phase): 15 ohm
  • Maximum Duty Cycle: 100%
  • Maximum Static Load: 200 N
  • Mass: 20 g

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