---
title: "DM-J4310-2EC vs RMD-X6-8 V3"
description: "Compare DM-J4310-2EC and RMD-X6-8 V3: catalog torque, mass, speed, price and source/revision caveats. Not a matched-condition test or compatibility recommendation."
canonical: https://actuatorlist.com/comparisons/damiao-dm-j4310-2ec-vs-myactuator-rmd-x6-8
last-updated: 2026-11-01T14:05:43.000Z
---
# DM-J4310-2EC vs RMD-X6-8 V3

Compare DM-J4310-2EC and RMD-X6-8 V3: catalog torque, mass, speed, price and source/revision caveats. Not a matched-condition test or compatibility recommendation. Unknown means not documented, not zero.

## DM-J4310-2EC

![DM-J4310-2EC: illustrative catalog photo; revision/variant unconfirmed](/actuator-images/damiao-dm-j4310-2ec.webp)

[Catalog and sources](/actuators/damiao-dm-j4310-2ec)

## RMD-X6-8 V3

![RMD-X6-8 V3: illustrative catalog photo; revision/variant unconfirmed](/actuator-images/myactuator-rmd-x6-8.webp)

[Catalog and sources](/actuators/myactuator-rmd-x6-8)

## Specifications

| Specification | DM-J4310-2EC | RMD-X6-8 V3 |
| --- | --- | --- |
| Peak torque (catalog) | 7 N·m | 8 N·m |
| Rated torque (catalog) | 3 N·m | 4.5 N·m |
| Maximum speed (catalog) | 200 rpm | 310 rpm |
| Mass | 306 g | 490 g |
| Gear ratio | 10:1 | 8:1 |
| Voltage | 24 V | 24-48 V |
| Price (catalog, not a live quote) | 125 USD | 355 USD |
| Encoder (resolution is not accuracy) | dual 14-bit magnetic single-turn encoders (motor and output) | 18-bit magnetic (dual-encoder option) |
| Complete actuator efficiency | Unknown: not documented | Unknown: not documented |
| Cooling / thermal duty | Unknown: not documented | Unknown: not documented |
| Loaded repeatability | Unknown: not documented | Unknown: not documented |
| Calibrated simulation model | Unknown: not documented | Unknown: not documented |

Sensor bits do not establish loaded accuracy. CAD geometry is not a calibrated simulation model. Verify thermal conditions, duty and exact revision before engineering use.

Catalog photo; illustrative. Confirm hardware revision/variant.

Catalog headline specs spot-checked: confirm revision. The legacy verified flag is a catalog spot-check, not verification of every field, installed revision or independent performance validation. Catalog entry only; confirm the exact revision and operating conditions with the linked source.

## Arithmetic from catalog values

Differences are subtraction of retained catalog values, not measured advantages. Ratings may have different test conditions. Unknown means not documented; manufacturer claims and catalog spot-checks are not independent validation.

- Peak torque: DM-J4310-2EC (7 N·m) minus RMD-X6-8 V3 (8 N·m) = -1 N·m.
- Rated torque: DM-J4310-2EC (3 N·m) minus RMD-X6-8 V3 (4.5 N·m) = -1.5 N·m.
- Maximum speed: DM-J4310-2EC (200 rpm) minus RMD-X6-8 V3 (310 rpm) = -110 rpm.
- Mass: DM-J4310-2EC (306 g) minus RMD-X6-8 V3 (490 g) = -184 g.

## Catalog source links

### DM-J4310-2EC / catalog sources

[Catalog-linked product page](https://aifitlab.com/products/damiao-dm-j4310-2ec-v1-1-servo-motor) · [Catalog-linked datasheet](https://github.com/dmBots/DM-J4310-2EC)

### RMD-X6-8 V3 / catalog sources

[Catalog-linked product page](https://www.robotshop.com/products/myactuator-rmd-x6-v3-can-bus-18-mc-x-300-o-brushless-servo-driver) · [Catalog-linked datasheet](https://www.myactuator.com/downloads-xseries)

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Catalog specifications and source caveats, not compatibility recommendations.

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- [RMD-X6-8 V3 vs RobStride 02](/comparisons/myactuator-rmd-x6-8-vs-robstride-02)

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