# MyActuator RH-20-100 Hollow Harmonic Actuator (no brake)

![MyActuator RH-20-100 Hollow Harmonic Actuator (no brake)](https://parts.trymaglev.com/img/ac-myactuator-rh-20-100-e-n-d.webp)

Mid-size hollow-shaft harmonic actuator, 100:1, dual encoder, for cobot joints and humanoid shoulders; a Chinese alternative to Harmonic Drive SHA20.

- Maglev ID: ac-myactuator-rh-20-100-e-n-d
- Brand: MyActuator
- MPN: RH-20-100-E-N-D
- Category: actuators / Integrated Joint Actuators
- Origin: CN (maker HQ, factory not confirmed)
- Maker: MyActuator (Suzhou Micro Actuator Technology) (brand, CN)
- NDAA: unknown · Blue UAS: unknown · FCC: n/a
- HTS: 8501.31.40.00 (typical)
- MOQ: unknown · Lead time: unknown
- Confidence: VERIFIED

## Price
- 1+: $1,343 (list, 2026-10-30, https://myactuator.us/products/rh-series/rh-20-100-e-n-d)

## Specifications
- Peak torque: 80 N·m
- Rated torque: 50 N·m
- Gear ratio: 100:1 harmonic
- Voltage: 48 V
- Mass: 1450 g
- Interface: CAN bus / EtherCAT

## Links
- Product: https://myactuator.us/products/rh-series/rh-20-100-e-n-d
- Datasheet: https://cdn.sanity.io/files/7rgy42zg/production/07ed42116ef4aaa24a5876495eeac45819d3bcfe.pdf
- CAD: https://cdn.sanity.io/files/7rgy42zg/production/cb4676495318d2ea297754dc87b1a0add804ed63.step

## Equivalents
- Harmonic Drive SHA20A Hollow-Shaft Rotary Actuator (CG, 1:100) (ac-harmonicdrive-sha20a-100)
- ZeroErr eRob70F Harmonic Rotary Actuator (100:1) (ac-zeroerr-erob70f-100)
- ENCOS EC-A6013-H20-100 Harmonic Joint (ac-encos-ec-a6013-h20-100)

## Sources
- https://myactuator.us/products/rh-series/rh-20-100-e-n-d (specs + price + stock)