Shanghai Dexdrive Technology Co. Ltd
Shanghai Dexdrive Technology Co. Ltd
Ultra-micro Harmonic Reducer
Diameter 8mm
Diameter 9mm
Diameter 3mm minimal
Thickness 5.5.mm, Ultra thin reducer
Product Features of Ultra-Miniature Harmonic Reducers

1. Ultra-Compact Miniaturization

· Outer diameter options: 8 mm; minimum outer diameter down to 3 mm

· Eliminates mounting obstacles for harmonic drives in extremely confined spaces such as dexterous robotic finger joints

· Roughly one-third smaller than comparable 12 mm miniature harmonic drives available globally

2. High Torque Density

· Built with a proprietary innovative structure, our reducer achieves over 30% higher rated output torque than conventional 12mm harmonic drives from international brands.

· It offers nearly triple the torque capacity of planetary reducers with identical outer dimensions

· This outstanding high-torque performance in a compact footprint significantly enhances the operational stability and reliability of dexterous robotic hands.

3. Superior Mechanical Efficiency

· Supported by patented micro-elastic deformation technology for the flexspline and a full miniature bearing configuration, our design boosts mechanical efficiency by more than 20% compared with standard harmonic drives. Its efficiency level closely matches that of single-stage planetary gear reducers.

4. Outstanding Cost Advantage

· Our ultra-miniature harmonic drives cost only 40% of equivalent imported counterparts, breaking the cost barrier that previously limited widespread adoption in dexterous grippers Delivers disruptive market competitiveness with premium performance at a mid-range price point

Technical Parameter Comparison: Dex-drive Ultra-Micro Harmonic Reducer vs. Current WorldClass Products
   
Other Advanced mini harmonic Reducer
Dex-drive ultra-miniature Harmonic Driver
Difference
1
Miniaturized Dimension
12mm
8mm/Minimum 3mm
35% smaller
2
Mechanical Efficiency
60%~70%
>90%
25% higher
3
Torque
23Ncm
28.5~32Ncm
40% higher
4
Precision
<1/6°
<1/6° ~ 1/10°
Slightly improved
5
Manufacturing Cost
100%(Base Line)
40%
60% lower
Application Scenarios for Ultra-Miniature Harmonic Reducers

1. This reducer is primarily used for high-precision transmission in confined spaces, including humanoid robot dexterous hands, medical devices, and aerospace systems.

2. Based on this core product, we expanded the product lineup to include ultra-miniature harmonic drive/ball screw linear module and ultra-miniature harmonic drive/frameless torque motor electromechanical modules, delivering integrated and modular high-precision transmission solutions.

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