Ultra Motion specializes in the design and production of precision electro-mechanical linear and rotary servo actuators, featuring integrated brushless DC motor control systems and non-contact absolute position feedback.
Our actuators are engineered to fulfill the dynamic motion needs of UAVs (unmanned aerial vehicles), UGVs (unmanned ground vehicles), USVs (uncrewed surface vessels), and UUVs (unmanned underwater vehicles). They are built to endure extreme conditions,including high shock and vibration,exposure to liquids,submersion in saltwater,and EMI/EMC interference.
With over three decades of expertise in creating actuators for demanding applications such as aerodynamic and hydrodynamic control surfaces, swashplate and tail-rotor control, and rocket engine thrust vectoring, we provide a wide array of robust commercial-off-the-shelf solutions tailored for the aerospace, defense, and maritime sectors.
A-Series – Flexible Linear Actuators for Drones and Robotics
Our Servo Cylinder series is engineered for exceptional performance in the most challenging environments. With IP-rated protection against water and dust, these cylinders feature robust interconnects and incorporate on-board sensors for temperature, current, voltage, and humidity, ensuring continuous health monitoring. Communication options include CAN 2.0B, RS-422/RS-485 serial, and RC PWM.
Ultra Motion’s innovative Phase Index non-contact position sensing technology is integrated into each Servo Cylinder, delivering absolute digital position feedback throughout the entire stroke and enabling Field-Oriented Control (FOC) of the motor. This eliminates the need for additional sensors or limit switches, enhancing reliability, longevity, and reducing operational noise.
These actuators are user-friendly and easy to integrate, with straightforward setup via serial commands or USB. Post-setup, only power and signal connections are necessary.
Key specifications include:
- Peak force of up to 530 lbf (2.36kN)
- Continuous force of up to 270 lbf (1.20kN)
- Speeds reaching 14 in/s (356 mm/s)
- Stroke lengths up to 7.75 in (197 mm)
All Servo Cylinder models come with a variety of customizable options, including screw type, BLDC motor size, stroke length, and a selection of three controllers.
AM Series – Heavy-Duty Servo Cylinders for UAVs and UGVs
The AM Series represents our most robust ruggedized Servo Cylinder, designed to withstand shock and vibration with features like a conformal coated controller PCB, MIL-spec connectors, and a hardcoat anodized aluminum casing for EMI/EMC protection.
This rugged actuator is rated IP67 for static conditions and IP65 for dynamic use, making it perfect for demanding unmanned systems applications, such as flight control surfaces for fixed-wing UAVs and braking systems for UGVs.
Discover more: Rugged Linear Actuators
AU Series – Marine and Subsea Servo Cylinders for USVs and UUVs
The AU Series is a subsea linear actuator crafted for demanding marine environments, both above and below the waterline.It features Wet-Mate electrical connectors and a fully sealed, pressure-balanced, oil-filled enclosure, allowing it to function reliably at depths of up to 6000 meters.
This actuator is suitable for a variety of ROV, AUV, and USV systems, with economical shallow-water versions also available.
Learn more: Subsea Servo Cylinders
A2 Series – Industrial Servo Cylinders for Robotics
The A2 Series is an industrial-grade linear actuator designed for dependable operation in environments filled with debris or outdoor conditions. It boasts an IP65 rating and features metal shell connectors.
Explore more: Industrial Linear Actuators
A1 Series – Standard Servo Cylinders for Robotics
The A1 Series is our standard cost-effective actuator model, ideal for robotic vehicles operating in cleaner indoor settings. It is rated IP50 and features molex Micro-fit connectors.
Learn more: Standard Servo Cylinder actuators
U-Series – Subsea Linear Servos for USVs and UUVs
The U-Series of pressure-compensated oil-filled linear actuators is designed for reliable performance in critical surface and subsea applications, capable of withstanding depths exceeding 6000 meters.
This product line offers a variety of options tailored to specific needs, including stepper motors or brushless DC motors, self-locking Acme leadscrews or high-efficiency ballscrews, and stroke lengths ranging from 1 to 16 inches.
All U-Series actuators come equipped with an internal linear potentiometer for absolute position feedback and standard SubConn Wet-Mate connectors.
learn more: Subsea Linear Servos for USVs and UUVs
L-Series – Linear Servo Actuators for UAVs and Robotics
The L-Series of linear servo actuators employs durable mechanical components and advanced materials to deliver outstanding performance and high torque in a compact design. With integrated brushless DC control electronics, CAN 2.0B, and RS-485 serial communication protocols, along with non-contact absolute position feedback, these actuators are exceptionally reliable even in the most demanding environments.
These versatile actuators are perfect for dual redundant UAV system designs, featuring redundant motors, control electronics, and a triplicated absolute position sensor with complete electrical isolation.
Learn more: Linear Servo Actuators for UAVs and Robotics
T-Series – rotary Servo Actuators for Drones and Robotics
The T-Series of rotary servo actuators combines a high-power density BLDC motor with integrated control electronics and non-contact absolute position feedback, delivering high torque in a lightweight and compact form. the innovative gearing design enables the actuator to endure high transient loads while minimizing the risk of structural failure.
these robust actuators, rated IP67, are suitable for a wide range of UAV control and actuation applications, with pressure-compensated oil-filled options available for subsea vehicles.
Learn more: Rotary Servo Actuators for Drones and Robotics
