Ultra Motion’s fields of application are as diverse as they are challenging. Pressure-compensated, oil-filled linear and rotary actuators are deployed in maritime applications at depths of up to 6,000 meters. In aerospace, customized systems prove their capabilities under vacuum and radiation conditions, powering both manned and unmanned aircraft. The robust drives also demonstrate their strengths in unmanned vehicles, industrial automation, as well as medical and research technology. What all of these applications have in common is the need for actuators that combine maximum reliability with outstanding power density.
FAULHABER technology at the core
FAULHABER motors of the BP4 family form the heart of Ultra Motion’s L-Series Linear Servos and T-Series Rotary Servos. In both cases, the brushless DC motors with high power density, paired with precision planetary gearheads, deliver high torque in compact housings. The result is drives that excel in dynamics and reliability, even under extreme conditions. For example, the L-Series is equipped with the unique Phase Index contactless absolute position feedback, enabling precise control even in harsh environments.
A particular highlight is the T3U-Series Submersible Rotary Servo. A specially engineered output shaft provides increased torque capacity here, while a vented, oil-filled configuration allows for pressure-compensated operation down to 6,000 meters. For the L-Series Linear Servos, FAULHABER implemented vacuum-optimized modifications to ensure reliable performance in space. These examples illustrate how FAULHABER products can be precisely tailored to special requirements, making a significant contribution to the performance of Ultra Motion actuators.
Integrating into these specialized actuator configurations requires a finely tuned balance between high torque, dynamic performance, and long-term reliability. Environmental conditions such as deep-sea pressure or the vacuum of space present enormous challenges that can only be overcome through customized mechanical and material engineering. Thanks to the close development cooperation between Ultra Motion and FAULHABER, it was possible to meet these challenges and deliver drives that operate flawlessly even in the toughest scenarios.
Compact actuators with wide-ranging capabilities
The results speak for themselves: Ultra Motion actuators combine FAULHABER’s precise drive systems with cutting-edge technology. They can be seamlessly integrated into autopilots and provide advanced motion-control functions with comprehensive telemetry, delivering information on motor current, absolute position, temperature, voltage, humidity, and system status. Additional features include a wide operating temperature range from –40 to +100 degrees Celsius, high shock and vibration resistance, and robust EMI/EMC performance. For deep-sea applications, pressure-compensated, oil-filled variants are available, while redundant architectures with multiple motors, controllers, and absolute position feedback systems ensure exceptional fault tolerance.
The market for unmanned systems is growing rapidly. As mission complexity increases, so too does the demand for compact, robust, and cost-efficient servo actuators. Whether in the deep sea, in orbit, or in highly dynamic industrial processes – Ultra Motion and FAULHABER are, through their close partnership, ideally positioned to continue delivering solutions that operate with precision and reliability, even under the most extreme conditions.

