High Performance Linear Servo Actuator

High performance, lightweight, ideal for aerospace and defense applications.

  • 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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AM Series

30 Years of Underwater Heritage

30 Years of underwater heritage, designed for subsea applications.

  • 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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AU Series

Robust and Reliable for Industrial Applications

Industrial-grade actuator for automation and environmental control.

  • 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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A2 Series

Your Cost-Effective Solution for Precision Control

Cost-effective precision actuator for labs and benchtop use.

  • 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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A1 Series

High-precision, zero-backlash motion Linear Servo Actuators

Reliable linear motion with integrated control and robust performance in demanding industrial or aerospace settings.

  • Compact and high-power-density design for use in space and weight constrained applications
  • Designed for operation in harsh shock/vibration and liquid exposed environments.
  • Integrated BLDC control electronics and Phase Index absolute feedback simplifies system architecture
  • Zero axial backlash improves control authority and stiffness for reliable and precision motion control
  • Vacuum compatible configurations available for high altitude and in-space applications.
  • L2D only: Redundant motors, control electronics, and triplicated absolute position feedback for mission-critical applications.
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L2M Series

High-Power Precision Motion Rotary Servo Actuators

Precision rotary power in a sealed, high-performance actuator built for extreme conditions.

  • High torque in a compact package allows rotary motion control in constrained spaces
  • Typical applications include control surfaces, valves, rudder steering, etc.
  • Integrated BLDC control electronics and single turn absolute feedback
  • Rugged mechanical and environmental build ensures high reliability in demanding aerospace, defense, and marine environments.
  • T3U only: Pressure compensated oil-filled design for operation to 6000 meters below sea.
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T3 Series

Engineered for depths beyond 6,000 mUnderwater Linear Actuators

Oil-filled linear actuator rated to 20,000 ft depth with absolute feedback.

  • Pressure compensated oil-filled assembly enables reliable linear motion in full-ocean-depth environments
  • Versatile configurations (stepper vs. BLDC, ballscrew/acme leadscrew, 1" to 16" stroke length) allows tailoring to system needs (sensor deployment, USV/UUV control surface, valve control, etc.)
  • Internal linear potentiometer for absolute position feedback
  • External motor control electronics required
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U Series
Aerospace Linear Actuators
Aerospace
Underwater Linear Actuators
Underwater & Marine
Uncrewed Vehicles
Uncrewed Vehicles
Defense Linear Actuators icon
Defense
Industrial Linear Actuators
Industrial
Medical Linear Actuators
Medical
Science & Research Linear Actuators
Science & Research
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Other Industries

U SeriesUnderwater

For 30 years Ultra Motion has been a leading supplier of pressure-compensated oil-filled linear actuators for the most critical subsea applications. Our unique design allows for reliable actuation to depths greater than 6,000 meters below sea with self-compensation and an extremely small footprint. We offer the most cost effective PBOF solutions in the industry where power density, size, and reliability are critical.

L SeriesLinear Servo

The L-Series Linear Servo Actuators are advanced electromechanical actuators equipped with integrated brushless DC control electronics, CAN 2.0B and RS-485 serial communication protocols, and our Phase Index® contactless absolute position feedback. Their design focuses on dynamic operation in the most demanding environments, utilizing durable mechanical elements, top-tier materials, and best-in-class components.

T SeriesRotary Servo

The T3 Series Rotary Servo Actuator is an advanced electromechanical actuator equipped with integrated brushless DC control electronics and contactless absolute position feedback. Its design focuses on dynamic operation in the most demanding environments, utilizing durable mechanical elements, top-tier materials, and best-in-class components.

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Capabilities

  • Brushless DC, stepper motor, and brushed DC actuators
  • Integrated control electronics and absolute position feedback
  • Communication protocols include CAN 2.0B, RS-422 serial, RC PWM, 4-20 mA, and more
  • 0.1" to 16" strokes
  • Force to 1,200 lbf
  • Speeds to 14 in/s
  • Submicron resolution
  • Preloaded assemblies
  • Specialty Actuators:
    • Subsea actuator for operation in depths of 22,000 feet below water (10,000 psi)
    • IP67 environmental protection
    • Shock and vibration hardened assemblies
    • Vacuum compatible and low outgassing actuators to 1x10^-6 Torr
    • Radiation hardened actuators exposed to 20 MRad/year
  • Custom Actuators:
    • Develop custom tailored solutions to meet performance specifications that exceed the capability of standard actuators.