High Performance Actuators
IHMC’s High Performance Actuators are powerful, light, and transparent, giving robots the (degrees of) freedom to do extraordinary things. Available in a range of sizes, there’s one for every use case.
Take a look inside.
Cycloidal Transmission
Strong. Safe. Silent. Each actuator is driven by a brushless DC motor and in-line cycloidal transmission. This affords our actuators quasi-direct drive performance at high gear ratios, low backlash, high torque density and efficiency, low backdriving torque, and resistance to impact.
Dual Encoding
The actuator knows where it is, because it knows where it isn't. Both the input (motor-side) and output (post-transmission) are measured by high-resolution absolute encoders, allowing for granual low-level control and adaptive compensation for imperfections in the transmission.
Durable Construction
Highly athletic motion = high internal forces. Featuring numerous steel retaining features and high-load bearings, these actuators can take a beating and keep running strong.
Speed and Power
Dynamic on demand. Our actuators can supply high power and high precision, Useful for door opening, manipulating objects, human-speed walking, and martial arts. All of which have been tested on Alex.
Inspect the specs.
Click on a model to learn more.
CA-115
| Peak torque | 241.3 Nm |
| Continuous torque | 74.1 Nm |
| No load speed | 7.72 rad/s |
| Outer diameter | 118 mm |
| Length | 105.6 mm |
| Mass | 2.62 kg |
CA-85
| Peak torque | 176.5 Nm |
| Continuous torque | 54.3 Nm |
| No load speed | 8.60 rad/s |
| Outer diameter | 117 mm |
| Length | 105.6 mm |
| Mass | 2.18 kg |
CA-76
| Peak torque | 107.5 Nm |
| Continuous torque | 30.4 Nm |
| No load speed | 9.92 rad/s |
| Outer diameter | 83.0 mm |
| Length | 96.2 mm |
| Mass | 1.45 kg |
CA-68
| Peak torque | 78.1 Nm |
| Continuous torque | 22.6 Nm |
| No load speed | 9.92 rad/s |
| Outer diameter | 83.0 mm |
| Length | 95.9 mm |
| Mass | 1.32 kg |
CA-60
| Peak torque | 23.2 Nm |
| Continuous torque | 6.64 Nm |
| No load speed | 43.1 rad/s |
| Outer diameter | 63.0 mm |
| Length | 60.3 mm |
| Mass | 0.67 kg |