---
title: "GIM8108-8 by Steadywin: specs, torque and price"
description: "QDD / Proprioceptive actuator from Steadywin (China). Peak torque 22 Nm, rated 7.5 Nm, weight 375 g, torque density 58.7 Nm/kg, price quote only."
canonical: https://getactuators.com/actuators/steadywin-gim8108-8
last-updated: 2026-09-26T20:29:50.000Z
---
# GIM8108-8 by Steadywin

> QDD / Proprioceptive actuator from Steadywin (China). Peak torque 22 Nm, rated 7.5 Nm, weight 375 g, torque density 58.7 Nm/kg, price quote only.

## Specifications

| Spec | Value |
| --- | --- |
| Category | QDD / Proprioceptive |
| Peak torque | 22 Nm |
| Rated torque | 7.5 Nm |
| Max speed | 320 rpm |
| Gear ratio | 8:1 |
| Weight | 375 g |
| Torque density | 58.7 Nm/kg |
| Price | quote only |
| Price per Nm | n/a |
| Backdrivable | yes |
| Backlash | 15 arcmin |
| Voltage | 24-56 V |
| Peak current | n/a |
| Communication | CAN |
| Control modes | position, velocity, torque |
| Encoder | 16-bit |
| Integrated driver | yes |
| Availability | in production |
| Data status | verified against sources |

## Use cases

- quadruped leg
- robot arm
- exoskeleton

## Notes

MIT-Cheetah-style QDD clone with very high torque density. 22 Nm stall / 7.5 Nm rated, 8:1 steel planetary (~15 arcmin backlash), nominal 110 rpm / max 320 rpm after reduction, 336W, 48V nominal (24-56V). SDC-series driver with CAN and USB-C config. Weight 375 g (net; ~0.8 kg gross shipping). Price roughly $55-112/unit wholesale (Alibaba, MOQ 2); no confirmed retail USD, so null.

## Sources

- <https://openelab.io/products/steadywin-gim8108-8-robot-motor>
- <https://manuals.plus/ae/1005007128509920>
- <https://rcdrone.top/products/steadywin-gim8108-8-planetary-reducer-servo-motor>
- <https://www.alibaba.com/product-detail/Steadywin-GIM8108-8-Gear-Motor-8_1601153179912.html>

## Similar QDD / Proprioceptive actuators

- [AK10-9 (V3.0 KV60) (CubeMars (T-Motor))](https://getactuators.com/actuators/cubemars-ak10-9): 55.2 Nm/kg
- [AK70-10 (KV100) (CubeMars (T-Motor))](https://getactuators.com/actuators/cubemars-ak70-10): 47.6 Nm/kg
- [AK80-9 (V3.0 KV100) (CubeMars (T-Motor))](https://getactuators.com/actuators/cubemars-ak80-9): 45.4 Nm/kg
- [GO-M8010-6 (Unitree)](https://getactuators.com/actuators/unitree-go-m8010-6): 44.7 Nm/kg
- [CyberGear Micromotor (Xiaomi)](https://getactuators.com/actuators/xiaomi-cybergear): 37.9 Nm/kg

## Machine-readable

- JSON: https://getactuators.com/api/v1/actuators/steadywin-gim8108-8
- Catalog index for agents: https://getactuators.com/llms.txt