# Damiao DM-J4310-2EC Joint Motor

![Damiao DM-J4310-2EC Joint Motor](https://parts.trymaglev.com/img/ac-damiao-dm-j4310-2ec.webp)

Low-cost 10:1 dual-encoder joint (~306 g) popular for small arms and LeRobot-style builds; MIT-mode CAN control.

- Maglev ID: ac-damiao-dm-j4310-2ec
- Brand: Damiao
- MPN: DM-J4310-2EC
- Category: actuators / Integrated Joint Actuators
- Origin: CN (maker HQ, factory not confirmed)
- Maker: Shenzhen Damiao Technology (达妙科技) (brand, CN)
- NDAA: unknown · Blue UAS: unknown · FCC: n/a
- HTS: 8501.31.40.00 (typical)
- MOQ: unknown · Lead time: unknown
- Confidence: REPORTED

## Price
- 1+: $139.99 (distributor, 2026-10-29, https://openelab.com/products/damiao-brushless-servo-dm-j4310; OpenELAB sale price (regular $185.99) for SKU DM-J4310-2EC-24V-V3; OpenELAB is a listed official Damiao distributor)

## Specifications
- Peak torque: 7 N·m (V3); 12.5 N·m listed for V4
- Rated torque: 3 N·m (V3); 3.5 N·m (V4)
- Gear ratio: 10:1
- Voltage: 24 V or 48 V versions
- Mass: ~306 g
- Interface: CAN 1 Mbps (control) + UART 921600 (config)
- Encoder: Dual magnetic, 14-bit (V3) / 16-bit (V4)

## Links
- Product: https://openelab.com/products/damiao-brushless-servo-dm-j4310
- Datasheet: none
- CAD: none

## Equivalents
- RobStride RS00 QDD Joint Actuator (ac-robstride-rs00)
- CubeMars AK60-6 V3.0 KV80 Robotic Actuator (ac-cubemars-ak60-6-v3)
- MyActuator RMD-X2-P28-7 Planetary Actuator (ac-myactuator-rmd-x2-p28-7)

## Sources
- https://openelab.com/products/damiao-brushless-servo-dm-j4310 (specs + price (distributor))