Electronic Components
DAMIAO J4340P-2EC Brushless Servo Joint Motor MIT Driver Dual Encoder
Shopping information
The DAMIAO J4340P-2EC is a high-torque brushless servo joint motor designed for robotics joints, legged robots, exoskeleton prototypes, and compact actuator systems that need integrated control, dual-encoder feedback, and MIT-style motion control.
This listing includes V3 and V4 driver-generation options with 24V and 48V selections. The variant table separates the available Shopify SKUs from the internal driver versions so integration teams can choose the correct voltage and generation before purchase.
Features
- High-torque servo joint motor with 9Nm rated torque and 27Nm peak torque reference performance.
- Integrated MIT driver and dual magnetic encoder feedback for compact robotic joint integration.
- Supports MIT, speed, position, and force-position hybrid control modes.
- CAN communication at 1Mbps and UART debugging at 921600bps.
- Available in V3 and V4 driver generations with 24V and 48V Shopify variant selections.
Variant Options
| Voltage | V3 Driver Version | V4 Driver Version | Selection Notes |
|---|---|---|---|
| 24V | DM-J4340P-2EC DM-J4340P-2EC-24V-V3 |
DM-J4340P-2EC V1.1 DM-J4340P-2EC-24V-V4 |
Choose 24V when the robot power system, driver bus, and battery pack are built around a 24V architecture. |
| 48V | DM-J4340P-2EC DM-J4340P-2EC-48V-V3 |
DM-J4340P-2EC V1.1 DM-J4340P-2EC-48V-V4 |
Choose 48V for systems that require higher bus voltage support and have matching power, protection, and control hardware. |
Specifications
| Parameter | V3 | V4 |
|---|---|---|
| Rated Voltage | 24V reference; 24V / 48V Shopify selections | 24V reference; 24V / 48V Shopify selections |
| Rated Torque | 9Nm | 9Nm |
| Peak Torque | 27Nm | 27Nm |
| Rated Speed | 36rpm | 36rpm |
| Max No-Load Speed | 52rpm at 24V; 100rpm at 48V | 52rpm at 24V; 100rpm at 48V |
| Gear Ratio | 40:1 | 40:1 |
| Pole Pairs | 14 | 14 |
| Phase Inductance | 360uH | 360uH |
| Phase Resistance | 880mohm | 880mohm |
| Outer Diameter / Height | 57mm / 56.5mm | 57mm / 56.5mm |
| Weight | Approx. 375g | Approx. 375g |
| Encoder | 14-bit dual magnetic encoder | 14-bit dual magnetic encoder |
| Communication | CAN @ 1Mbps; UART @ 921600bps | CAN @ 1Mbps; UART @ 921600bps |
| Control Modes | MIT, speed, position, force-position hybrid | MIT, speed, position, force-position hybrid |
Packing List
- DAMIAO J4340P-2EC brushless servo joint motor x1
- XT30(2+2)-F single-ended Power and CAN cable, 100mm x1
- GH1.25 3-pin UART debug cable, reverse side, 300mm x1
Product Visuals
Compact integrated actuator form factor for robotic joint assemblies.Side detail for checking mechanical layout and installation clearance.Housing and connector detail for integration planning.Product overview image for confirming the selected actuator model.
Reference Documents
- DAMIAO Communication Protocol
- DAMIAO J4340P-2EC User Manual
- DAMIAO J4340P-2EC 3D Model
FAQ
What is the difference between the V3 and V4 options?
The listing separates the available driver-generation selections. V4 is listed as DM-J4340P-2EC V1.1, while V3 is listed as DM-J4340P-2EC.
Should I choose the 24V or 48V variant?
Choose the voltage that matches your robot power architecture, battery system, protection design, and controller configuration.
Is this suitable for legged robot joints?
Yes. The integrated driver, dual encoder feedback, and MIT control mode make it suitable for compact robotic joints when the torque, speed, voltage, and mechanical limits match the design.
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