# SINOTUP TF55 Micro Cycloidal Reducer

![SINOTUP TF55 Micro Cycloidal Reducer](https://parts.trymaglev.com/img/ac-sinotup-tf55.webp)

Chinese TwinSpin-style micro cycloidal reducer for humanoid and arm joints; 82 N·m rated, 0.8 kg.

- Maglev ID: ac-sinotup-tf55
- Brand: SINOTUP
- MPN: TF55
- Category: actuators / Cycloidal & RV Reducers
- Origin: CN (maker HQ, factory not confirmed)
- Maker: SINOTUP (拓朴智行) (brand, CN)
- NDAA: unknown · Blue UAS: unknown · FCC: n/a
- HTS: 8483.40.50
- MOQ: 1 · Lead time: unknown
- Confidence: REPORTED

## Price
- 1+: $630 (distributor, 2026-10-30, https://aifitlab.com/products/sinotup-tf55-reducer)

## Specifications
- Ratio: Axis rotation 21-81 (store: 11/31/51/91)
- Rated output torque: 82 N·m
- Max. accel./decel. torque: 162 N·m (emergency stop 240 N·m)
- Backlash class: P0-P2 (values not stated)
- Outer diameter: unknown
- Hollow shaft: unknown
- Mass: 0.8 kg

## Links
- Product: https://aifitlab.com/products/sinotup-tf55-reducer
- Datasheet: none
- CAD: none

## Equivalents
- Spinea TwinSpin TS 70 Cycloidal Reduction Bearing (T series) (ac-spinea-ts70-75-tb)

## Sources
- https://aifitlab.com/products/sinotup-tf55-reducer (reseller spec table, price, stock, drawing/STEP listed)