Drive Systems in Action – From the Deep Sea to Outer Space

When it comes to developing reliable drive systems for the world’s most demanding environments – and beyond – every detail matters. Ultra Motion, a U.S.-based specialist in electromechanical servo systems, designs and manufactures actuators that operate reliably from the deep sea to outer space. In close partnership with FAULHABER, they create solutions that combine maximum power density, precision, and robustness, making them indispensable for numerous high-end applications.
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.