---
title: "RobStride 03 specs"
description: "Integrated Joint actuator from RobStride (China). Peak torque 60 Nm, rated 20 Nm, weight 880 g, torque density 68.2 Nm/kg, price $249.99."
canonical: https://actuatorlist.com/actuators/robstride-03
last-updated: 2026-11-01T14:05:43.000Z
---
# RobStride 03 by RobStride

> Integrated Joint actuator from RobStride (China). Peak torque 60 Nm, rated 20 Nm, weight 880 g, torque density 68.2 Nm/kg, price $249.99.

## Specifications

| Spec | Value |
| --- | --- |
| Category | Integrated Joint |
| Peak torque | 60 Nm |
| Rated torque | 20 Nm |
| Max speed | n/a |
| Gear ratio | 9:1 |
| Weight | 880 g |
| Torque density | 68.2 Nm/kg |
| Price | $249.99 |
| Price per Nm | $4.2 |
| Backdrivable | yes |
| Backlash | n/a |
| Voltage | 15-60 V |
| Peak current | n/a |
| Communication | CAN |
| Control modes | position, velocity, torque, mit |
| Encoder | dual magnetic |
| Integrated driver | yes |
| Availability | in production |
| Data status | Catalog headline specs spot-checked: confirm revision |

## Size a joint

- [Motor torque calculator](/tools/motor-torque-calculator?solve=power&t=20): **20 N·m** rated; add a speed for its shaft power.
- [Robot arm torque calculator](/tools/robot-arm-torque-calculator?L=0.4,0.35,0.12&m=1.2,0.8,0.3&a=0.88,0.5,0&p=2): **33.4 N·m** at the shoulder with its 880 g at the elbow of a 2 kg-payload arm.
- [Humanoid robot actuators](/guides/humanoid-robot-actuators#waist): **4 of 7 joints** within its rated torque, up to the waist at 16.9 N·m.

## Use cases

- robot arm
- quadruped leg
- humanoid joint

## Notes

Mid-size QDD module for larger arms/legs. 60 N.m peak, 20 N.m rated at 100 rpm, 9:1 reduction, 48 V nominal (15-60 V driver range), dual magnetic encoders. Rated 20 N.m (tested at 100 rpm) and mass 880 g +/-20 g per RobStride RS03 user manual 260713 (Seeed/OpenELAB list 21 N.m and 900 g). Priced at $249.99 on Seeed Studio (authorized RobStride distributor, USD).

## Sources

- [https://www.seeedstudio.com/Robostride-03-Actuator-p-6774.html](https://www.seeedstudio.com/Robostride-03-Actuator-p-6774.html)
- [https://openelab.io/blogs/learn/what-is-robstride03-qdd-60n-m-actuator](https://openelab.io/blogs/learn/what-is-robstride03-qdd-60n-m-actuator)
- [https://github.com/RobStride/Product\_Information](https://github.com/RobStride/Product_Information)
- [https://www.robstride.com/products/robStride03](https://www.robstride.com/products/robStride03)
- [https://github.com/RobStride/Product\_Information/blob/main/Product%20Literature/RS03/RS03User%20Manual260713.pdf](https://github.com/RobStride/Product_Information/blob/main/Product%20Literature/RS03/RS03User%20Manual260713.pdf)

## Similar Integrated Joint actuators

- [EC-A4315-P2-36 (ENCOS)](https://actuatorlist.com/actuators/encos-ec-a4315-p2-36): 154.6 Nm/kg
- [EC-A6416-P2-25 (ENCOS)](https://actuatorlist.com/actuators/encos-ec-a6416-p2-25): 149.1 Nm/kg
- [DM-J6248P-2EC (DAMIAO (DMBots))](https://actuatorlist.com/actuators/damiao-dm-j6248p-2ec): 147 Nm/kg
- [EC-A4310-P2-36 (ENCOS)](https://actuatorlist.com/actuators/encos-ec-a4310-p2-36): 94.2 Nm/kg
- [RMD-X8-120 (MyActuator)](https://actuatorlist.com/actuators/myactuator-rmd-x8-120): 85.7 Nm/kg

## Machine-readable

- JSON: https://actuatorlist.com/api/v1/actuators/robstride-03
- Catalog index for agents: https://actuatorlist.com/llms.txt