Full specification
| Parameter | Value |
|---|---|
| Frame | Φ46 × 37.9 mm |
| Ratio | 7:1 · planetary |
| Rated torque | 0.8 N·m |
| Peak torque | 3 N·m |
| Weight | 150 g |
| Supply | 24 V nominal · 24–48 V supported |
| Encoder | Dual encoder (2EC) · single-turn absolute on the output side |
| Comms | CAN / CAN FD |
| Brake | None |
| Torque sensor | None — current-loop torque control only |
Source: DAMIAO 2026 product selection catalogue, DM-J planetary series. Figures verified November 2026 — confirm the exact variant against the datasheet issued with your order.
When this is the right choice
- Inside a hand or an exoskeleton. 46 mm and 150 g fits where a Φ57 module will not.
- 7:1 is fast and backdrivable. Good for a compliant finger drive or a pan-tilt that has to be moved by hand when unpowered.
- Dual encoder gives absolute position on the output side, so no homing on power-up.
- Same CAN stack as the rest of DM-J — one driver, one configuration tool.
When it is the wrong choice
- Holding anything up. No brake, and 0.8 N·m rated will not hold a lever against gravity.
- Force-controlled contact. No torque sensor; current-loop torque drifts with temperature.
- Above ~3 N·m. DM-J4310 gives 5.2/18 N·m in a Φ57 body for twice the mass.
Alternatives at a similar level
- DAMIAO DM-J4310 — 3–5.2 N·m rated, 306–370 g — the next size up
- Crabnova CE-RBV3-R48-101 — 6.5 N·m with brake and sensor, 0.276 kg, if backlash matters
- Tongchuan TCHL-11 — 5.3 N·m harmonic at 0.37 kg
- DAMIAO DM-J4340-2EC V1.1 — 12 N·m rated, 40 N·m peak in a Φ57 frame
Quote this model
Model, quantity and destination is enough to start — we come back with price, availability and the datasheet.
DM-J3507 FAQ
Is 7:1 enough reduction for a robot joint?
For a finger or a camera axis, yes — and the low ratio is the point: it stays backdrivable and fast. For anything that has to hold a load, a higher-ratio joint is the right choice.
Can I add a brake?
No. The DM-J series has no brake option on any SKU, confirmed across the 2026 catalogue.
24 V or 48 V?
24 V nominal, 24–48 V supported at the same torque; 48 V roughly doubles no-load speed.
How long does it take to ship?
Confirmed per order at quotation.
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