The DM-J8009P-2EC is a high-torque integrated joint motor designed for heavy-duty robotic joints and high-load applications. Supporting higher current and a wider voltage range, it delivers powerful and stable torque output suitable for industrial robotic systems and large robotic manipulators.
In the OpenArm robotic arm configuration, the DM-J8009P-2EC is typically installed at the base joint (J1). As the primary rotation axis of the robotic arm, this joint requires maximum torque capacity to rotate the entire arm structure and payload smoothly and reliably.
Mechanical parameters
Performance Parameters
|
Parameter |
Value |
| Supply Voltage (V) | 24V (24–48V) |
| Rated Phase Current (A) | 18.6 |
| Peak Phase Current (A) | 40 |
| Rated Torque (Nm) | 20 |
| Peak Torque (Nm) | 40 |
| Rated Speed (rpm) | 100 @24V / 200 @48V |
| No-load Speed (rpm) | 168 @24V / 335 @48V |
| Rated Power (W) | 209 |
| Reduction Ratio | 9 |
| Pole Pairs | 21 |
| Phase Inductance (µH) | 80 |
| Phase Resistance (Ω) | 0.145 |
| Motor Size (mm) | 98 × 61.7 |
| Weight (g) | 921 |
| Encoder | Dual Encoder |
| Communication Mode | CAN, CAN FD |