Made in the USA · North American Supply Chain

Precision actuation for
the humanoid robotics era.

US Actuator designs and manufactures linear and rotary actuators engineered for the torque density, control bandwidth, and duty cycles that next-generation humanoid and industrial robots demand.

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Nm/kg power density target
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Control loop latency
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Assembled in the USA
FIG. 01 — PROTOTYPE AURA-1 EXPLODED VIEW● LIVE SPEC
U.S. Actuator Advanced Kinetic Systems AURA-1 Exploded View
Engineering Direction

Built around the specs humanoid platforms
actually need.

Our current engineering targets are informed by where the field is moving: higher torque density, stiffer roller-screw drivetrains, and control loops fast enough for whole-body balance.

Power Density

Targeting 100+ Nm/kg through optimized NdFeB rare-earth motor stacks and lightweight housings, keeping limb inertia low without sacrificing torque.

Sub-1ms Control

FOC current loops and dedicated torque sensing enable sub-millisecond control response for reactive balance and dynamic locomotion.

Roller-Screw Joints

Planetary roller-screw transmissions deliver shock resistance and positional accuracy that outlast ball-screw and belt-drive alternatives under repeated impact loads.

Impedance Control

Impedance and admittance torque control modes let integrators tune joint compliance in software for safe, natural-feeling interaction.

Where Our Actuators Work

One drivetrain platform,
engineered for many industries.

Humanoid robotics is our flagship application and primary design driver — but the same actuator architecture serves demanding roles across automation, defense, mobility, and healthcare.

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Flagship

Humanoid Robotics

Hip, knee, shoulder, and wrist joint modules tuned for bipedal balance and manipulation.

Industrial

Industrial Automation

Collaborative arms, palletizers, and precision motion stages on factory floors.

Aerospace

Aerospace & Defense

Flight surface actuation and ground robotics built to MIL-spec duty cycles.

Medical

Medical Devices

Surgical robotics and rehabilitation exoskeletons requiring precise, compliant force control.

Why US Actuator

North American manufacturing,
without the supply-chain risk.

Domestic Production

Final assembly, winding, and QA performed at our Austin, TX facility — not dependent on overseas lead times.

Engineering Partnership

We work directly with robotics OEMs on joint-level integration, not just off-the-shelf part sales.

Built for Scale

Manufacturing processes designed to scale from prototype runs to volume production as humanoid platforms mature.

Let's talk about your joint actuation needs.

Whether you're prototyping a humanoid platform or specifying actuators for an industrial line, our engineering team can help you land on the right module.

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