CubeMars has published a short showcase video putting its AK70-10 KV100 robotic actuator into dynamic robotic applications. The 48-second clip is a compact product showcase rather than a tutorial: it shows the actuator running in motion, with the emphasis on the combination of a compact, highly integrated mechanical design and a 10:1 planetary reduction.
This article breaks down what the video shows, which claims CubeMars makes in its own description, the verified specifications of the AK70-10 KV100, and why this actuator class is relevant for quadruped robots, exoskeletons and other dynamic motion systems.
What the Video Shows
Published on the official CubeMars YouTube channel on September 16, 2026, the video runs for 48 seconds and presents the AK70-10 in motion under the title “From Dynamic Motion to Agile Robotics”. The footage focuses on the actuator itself rather than on a complete machine: it is a product showcase built around the module’s compact, highly integrated construction and its 10:1 planetary gear reduction.
For engineers, the useful part of this kind of clip is the integration context - how a 89 mm-class integrated actuator with motor, gearbox, driver and encoder in one housing behaves when it is actually driven, which is difficult to judge from a datasheet table alone.
Original Video
Source: CubeMars Official YouTube Channel
Video: See how the CubeMars AK70-10 powers dynamic robotic applications with its compact
Product Featured: CubeMars AK70-10 KV100
The AK70-10 KV100 is an integrated robotic actuator from the CubeMars AK series. According to CubeMars’ official product page, it combines a high-performance brushless DC motor, a 10:1 planetary gearbox, a driver board and an encoder in a single Ø89 × 50.25 mm housing. The module supports multi-loop control (position, speed, torque and MIT hybrid mode), uses plug-and-play connectors with automatic PID parameter identification, and carries built-in protection against overcurrent, overvoltage/undervoltage and overheating.
What CubeMars States in the Video
The following points come from the official video description and are attributed to CubeMars, not to independent testing:
- Compact, highly integrated design with 10:1 planetary reduction - the headline mechanical claim of the clip.
- High torque density - presented as the reason the module fits dynamic robotic applications.
- Responsive motion control - the actuator is shown being driven through dynamic motion.
- Strong backdrivability - stated as a characteristic of the module; the official specification sheet lists a back-drive torque of 0.48 Nm.
- Target applications - CubeMars names quadruped robots and exoskeletons as the demanding applications the AK70-10 is designed for.
Application and Engineering Context
Dynamic legged and wearable systems place a specific set of demands on a joint actuator: high torque at low output speed, a compact envelope that fits inside a limb or joint, low enough reflected inertia to stay controllable during fast motion, and sufficient backdrivability for compliant interaction. A 10:1 planetary stage sits between the quasi-direct-drive ratios used in highly compliant legs and the high ratios used in slower, heavier joints - it trades some transparency for a materially higher torque output from the same motor volume.
The AK70-10 KV100 is rated for 24/48 V operation, which is the supply range most commonly available on quadruped and exoskeleton platforms. Its rated torque of 8.3 Nm with 24.8 Nm peak places it in the medium-load joint class: suitable for larger quadruped legs and hip or knee assistance, rather than for small, high-speed joints.
Product Details
| Specification | Details |
|---|---|
| Manufacturer | CubeMars |
| Product | AK70-10 KV100 Robotic Actuator |
| Category | Integrated robotic actuator (AK series) |
| Rated Voltage | 24/48 V |
| Rated Power | 230 W |
| Rated Torque | 8.3 Nm |
| Peak Torque | 24.8 Nm |
| Rated Speed | 148/310 rpm |
| No-load Speed | 240/480 rpm |
| Reduction Ratio | 10:1 planetary |
| Weight | 621 g |
| Dimensions | Ø89 × 50.25 mm |
| Encoder | 14-bit magnetic encoder |
| Back-drive torque | 0.48 Nm |
| Backlash | 0.2° |
| Driving way | FOC |
| Interfaces | CAN / UART |
| Stated applications | Legged robots, exoskeletons, AGV |
All specifications sourced from CubeMars’ official product page. Claims about torque density, responsiveness and backdrivability are quoted from the official video description.
Explore on ToBMS
- Explore CubeMars AK70-10 KV100 Robotic Actuator →
- View the CubeMars manufacturer profile on ToBMS →
- Explore BLDC motors for quadruped robots →
- Explore BLDC motors for exoskeletons →
- Watch the AK70-10 KV100 unboxing walkthrough →
About CubeMars
CubeMars is a robotics power brand specializing in high-integration actuator modules, frameless torque motors and gimbal motors. The company contributed to the MIT Mini Cheetah project and has since built a broad AK-series actuator portfolio used in humanoid, quadruped, exoskeleton and robotic-arm research worldwide.
Conclusion
This 48-second clip is a product showcase rather than a technical deep dive, and that is its value: it shows a catalog-grade integrated actuator being driven in the kind of dynamic motion it was designed for. Combined with the official datasheet - 8.3 Nm rated, 24.8 Nm peak, 10:1 planetary reduction in a 621 g, Ø89 × 50.25 mm housing - it gives engineers a realistic starting point for evaluating the AK70-10 KV100 for quadruped, exoskeleton and similar dynamic motion joints.
