By Tolerance Labs engineering team. Specs from the makers’ published data.
17 models: 4.1–222 N·m peak torque, 6–64:1 gear ratios, 0.19–1.4 kg weight, 24–48 V supply voltage. Every model is below with its key specs and US price.
AK modules combine a brushless motor, a planetary reducer, an encoder and a driver in one housing, controlled over CAN. The AKE models are the quasi-direct-drive line for exoskeletons and legs.
| Model | Torque (rated) | Torque (peak / max) | Gear ratio | Communication | Weight | Price |
|---|---|---|---|---|---|---|
| AK40-10 V3.0 KV170 | 1.3 N·m | 4.1 N·m | 10:1 | CAN | 0.19 kg | $137.90 |
| AK45-10 V3.0 KV75 | 2.5 N·m | 7 N·m | 10:1 | CAN | 0.262 kg | $158.90 |
| AK60-6 V3.0 KV80 | 3 N·m | 9 N·m | 6:1 | CAN | 0.38 kg | $233.90 |
| AKA60-6 KV80 | 3 N·m | 9 N·m | 6:1 | CAN | 0.46 kg | $303.90 |
| AK80-6 KV100 | 6 N·m | 12 N·m | 6:1 | CAN | 0.485 kg | $477.90 |
| AKE60-8 KV80 | 5 N·m | 12.5 N·m | 8:1 | CAN | 0.26 kg | $221.90 |
| AK45-36 V3.0 KV80 | 8 N·m | 24 N·m | 36:1 | CAN | 0.349 kg | $188.90 |
| AK70-10 KV100 | 8.3 N·m | 24.8 N·m | 10:1 | CAN | 0.621 kg | $405.90 |
| AK80-8 KV60 | 10 N·m | 25 N·m | 8:1 | CAN | 0.57 kg | $477.90 |
| AK70-9 V3.0 KV60 | 8.5 N·m | 29.2 N·m | 9:1 | CAN | 0.54 kg | $405.90 |
| AKE80-8 KV30 | 12 N·m | 30 N·m | 8:1 | CAN | 0.57 kg | $344.90 |
| AK10-9 V2.0 KV60 | 18 N·m | 48 N·m | 9:1 | CAN | 0.96 kg | $710.90 |
| AK10-9 V3.0 KV60 | 18 N·m | 53 N·m | 9:1 | CAN | 0.94 kg | $710.90 |
| AK60-39 V3.0 KV80 | 24 N·m | 72 N·m | 39:1 | CAN | 0.75 kg | $455.90 |
| AK80-64 KV80 | 48 N·m | 120 N·m | 64:1 | CAN | 0.85 kg | $904.90 |
| AKE90-8 KV35 | 55 N·m | 170 N·m | 8:1 | CAN | 1.4 kg | $492.90 |
| AKH70-48 V1.0 KV41 | 74 N·m | 222 N·m | 48:1 | CAN | 1.4 kg | $710.90 |
Picks within the series
- Most torque: AKH70-48 V1.0 KV41 (222 N·m peak)
- Most torque per kilogram: AKH70-48 V1.0 KV41 (159 N·m/kg)
- Lightest: AK40-10 V3.0 KV170 (0.19 kg)
More
See everything from CubeMars, and the guides Quasi-direct drive or high ratio? Picking a joint's gearing and How to choose a robot joint actuator. Size a joint with the joint torque calculator.