High Performance Linear Servo Actuator

  • BLDC control electronics and contactless absolute position feedback built-in
  • Control via CAN 2.0B, RS-422 serial, RC PWM, and more
  • Lightweight, high power density, high bandwidth
  • Ideal for harsh shock and vibration environments in the aerospace and defense industries
  • 100% electrically conductive hardcoat anodized aluminum enclosure for EMI/EMC protection
  • Typical applications include swashplate and tail-rotor control, fixed wing UAV control surfaces, thrust vector control of rocket engines, UGV brake and transmission control, etc.
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30 Years of Underwater Heritage

  • BLDC control electronics and contactless position feedback built-in
  • Pressure balanced oil-filled for operation to 6000+ meters (10,000 PSI)
  • Control via CAN, RS-422 serial, digital signals, and more
  • Ideal for harsh maritime applications above and below the waterline
  • Hydrofoils, ROV control surfaces, subsea valves, release mechanisms, USV control…
  • Shallow underwater versions available for low cost subsea actuation: hydrofoils, littoral uses, USV control
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Robust and Reliable for Industrial Applications

  • Industrial-grade linear servo actuator
  • Built-in BLDC control electronics and absolute position feedback
  • Expanded control options: CAN, RS-422 serial, 4-20 mA in/out, ±10 VDC
  • IP65 sealing for wet and dusty environments
  • Ideal for industrial automation tasks, environmental cells, dynamometers, outdoor applications
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Your Cost-Effective Solution for Precision Control

  • Complete linear servo system
  • Built-in BLDC control electronics and absolute position feedback
  • Control options: CAN, RS-422 serial, 4-20 mA in/out, ±10 VDC
  • Non-sealed, lowest cost version
  • Suitable for benchtop applications, laboratory experiments, clean environments
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Aerospace Linear Actuators
Underwater Linear Actuators
Underwater & Marine
Uncrewed Vehicles
Uncrewed Vehicles
Industrial Linear Actuators
Medical Linear Actuators
Science & Research Linear Actuators
Science & Research
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Other Industries

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The Servo Cylinder: A Quick Look at This Leading UAV Actuator Solution

The Servo Cylinder is a popular choice for high reliability UAV control surface and utility linear actuator applications. The A-Series Servo Cylinder uses a brushless DC motor and contactless absolute…

Component Focus: Internal Desiccant

All of the dynamic shaft seal design efforts taken by Ultra Motion will minimize the amount of liquid ingress into the actuator enclosure, but 100% moisture exclusion is not feasible. For this reason,…
UltraMotion subsea actuator

Ultra Motion Actuators Go Offshore On Subsea Cable Installation Carriage

Great to see our U1 Series subsea linear actuator being used in North Sea Systems' CableFish. The system provides subsea cable installers with continuous video and mapping of the product as it contacts…


  • Stepper Motor, Brushless DC, and Brushed Actuators
  • 0.1” to 16” stroke length
  • Forces to 500 lbf
  • Speeds to 20 in/s
  • Submicron resolution
  • Industrial Network Protocols such as CANopen, Ethernet, and more.
  • Specialty Actuators:
    • Subsea actuators operating in depths to 22,000 feet underwater (10,000 psi)
    • IP65 environmentally protected actuators
    • Cryogenic Environment actuators operating below 77 K
    • Radiation Hardened actuators exposed to 20 Mrads/year
    • Vacuum compatible, low outgassing actuators to 1x10-6 Torr
  • Custom Actuators:
    • Develop custom tailored solutions to meet performance specifications that exceed the capability of standard actuators.