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Advantages of Harmonic Reducers in Dexterous Hands:
Humanoid robot hands require high flexibility, precise movements, a compact structure, light weight, low noise, and long service life. Through comprehensive comparison, harmonic reducers are the most suitable reduction devices, with their prominent features as follows:
- Compact structure, more suitable for installation in limited spaces.
- High repeatability, suitable for fine grasping of dexterous hands.
- High torque density, suitable for increasing the torque of finger joints.
- Fast response speed, suitable for quick reactions of finger movements.
- Low wear and long service life, suitable for the stability and long-term use of dexterous hands.
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Dimension Drawing

CS mini 2.5 Harmonic Reducer Parameter Table
| Parameter |
Unit |
Reduction Ratio 30 |
Reduction Ratio 50 |
| Rated Torque at 2000 r/min |
N·m |
0.06 |
0.1 |
| Allowable Peak Torque (Start-Stop) |
N·m |
0.13 |
0.21 |
| Maximum Allowable Average Load Torque |
N·m |
0.1 |
0.13 |
| Maximum Instantaneous Allowable Torque |
N·m |
0.21 |
0.4 |
| Maximum Allowable Input Speed |
rpm |
7000 |
7000 |
| Allowable Average Speed |
rpm |
3500 |
3500 |
| Moment of Inertia |
×10⁻⁴ kg·m² |
(value not specified in the image) |
(value not specified in the image) |
| Backlash |
Arcsec |
≤20 |
≤20 |