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CSF3 Mini Harmonic Reducer

Basic Properties
Place of Origin: CHINA
Brand Name: SENINTER
Certification: CE ROHS
Model Number: CSF3
Product Summary
The CS Mini 3 is one of the smallest and lightest precision harmonic drives currently available on the market. It is specifically designed for low-torque (0.1–0.6 N·m range), ultra-high precision applications. Its core value proposition is: Achieving zero-backlash precision transmission within a ...

Product Details

Ratio: 30/50
Max Allowable Input Speed: 7000rpm
Backlash: ≤20 Arcsec
Product Description



The CS Mini 3 is one of the smallest and lightest precision harmonic drives currently available on the market. It is specifically designed for low-torque (0.1–0.6 N·m range), ultra-high precision applications.

Its core value proposition is:

Achieving zero-backlash precision transmission within a space the size of a coin.

Typical applications for this space-sensitive, high-end equipment include:
 Micro robot joints
Endoscope manipulation mechanisms
5-axis machine tool auxiliary axes
Precision optical adjustment stages

CSF3 Mini Harmonic Reducer


Dimension Drawing

CSF3 Mini Harmonic Reducer

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 0.11
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 0.22 0.41
Maximum Allowable Input Speed rpm 10000 10000
Allowable Average Speed rpm 6500 6500
Moment of Inertia ×10⁻⁴ kg·m² (not specified) (not specified)
Backlash Arcsec ≤20 ≤20


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