How much load can an integrated joint actuator handle while still moving smoothly and under control? CubeMars’ official AKH series load test answers with data and footage: progressively increasing loads, culminating in a 40 kg full 360° rotation test.
What the Video Shows
The in-house validation footage shows the actuator driving a heavily loaded lever through increasing weights while maintaining stable, controlled motion. According to CubeMars, the results highlight the torque density, precision and reliability required for advanced robotic joints, exoskeletons and high-performance actuator systems.
Note: the video description refers to the demonstration as direct-drive performance; the AKH70-48 itself is officially classified by CubeMars as a hollow-shaft planetary actuator with a 48:1 reduction stage. The load figures shown are attributed to the video.
Original Video
Source: CubeMars Official YouTube Channel
Video: Load Test | CubeMars AKH series Drive Performance Validation
Product Featured: CubeMars AKH70-48 V1.0 KV41
Product Details
| Specification | Details |
|---|---|
| Manufacturer | CubeMars |
| Product | AKH70-48 V1.0 KV41 |
| Category | Hollow-shaft planetary actuator |
| Rated Voltage | 48 V |
| Rated Torque | 74 Nm |
| Peak Torque | 222 Nm |
| Rated Speed | 28 rpm (no-load 35 rpm) |
| Reduction Ratio | 48:1 |
| Weight | 1396 g |
| KV | 41 rpm/V |
| Applications | Robotic joints, exoskeletons, high-load actuation |
Specifications sourced from the official CubeMars product data.
Why It Matters
Hollow-shaft actuators let cables, slip rings or fluid lines pass through the joint center - a major integration advantage for legged robots and exoskeleton hips and knees. A published 40 kg lever-arm rotation test gives system engineers a concrete, repeatable reference point instead of a datasheet number alone.
Explore on ToBMS
- Explore CubeMars AKH70-48 V1.0 KV41 →
- Explore BLDC motors for exoskeletons →
- Explore BLDC motors for joint modules →
- View the CubeMars manufacturer profile on ToBMS →
Conclusion
Published load testing is one of the more credible forms of actuator marketing: it shows the product doing exactly the work buyers will ask of it. For high-load joint designs, the AKH70-48’s 74 Nm rated / 222 Nm peak class performance deserves a spot on the shortlist.
