10:1 reduction brushless joint motor with integrated driver, dual 16-bit single-turn magnetic encoders (output-shaft absolute feedback), CAN control and UART configuration
Motion & Actuation · Integrated planetary actuator
DM-J4310-2EC V1.2 (24V)
This record freezes the 24 V column of the official V1.2 user manual; the manual publishes 24 V and 48 V variants side by side and RCI carries 48 V-only values solely as variant notes. The current hardware revision on the official dmBots repository is V1.2 (the V1.0 manual is filed with a discontinued marker), so the informal “DM4310 V4” designation is not used. There is no “V4” revision on the official surface.
Damiao DM-J4310-2EC V1.2 (24 V) · Also: DM4310, DM-J4310-2EC, DM-J4310-2EC V1.2 (48V) — separate higher-voltage variant
11 known suppliers in this product family.
Motor, reduction, feedback and drive electronics sold as an integrated or near-integrated robot-joint product. The list is bounded to the current RCI manufacturer-directory universe and separates exact-model audited suppliers from confirmed product-line suppliers.
EXACT-MODEL AUDITED
8 suppliers
HEBI Robotics · ROBOTIS · CubeMars · MYACTUATOR · Unitree Robotics · mjbots · FEETECH · Damiao
PRODUCT-LINE CONFIRMED
3 suppliers
INNFOS · MAB Robotics · Synapticon
This is a bounded discovery set, not a claim to enumerate every company worldwide. Open the full supplier landscape and official routes →
What this record can support today.
Coverage is computed from published, non-unknown fields. It measures the record—not product quality—and makes missing procurement evidence explicit.
Engineering field coverage82%
9 of 11 selected fields published
- Official product sourcepublished
- Lifecycle statepublished
- Mechanical dimensions / mass / mountingpublished
- Environmental operating limitspublished
- Continuous or rated outputpublished
- Peak / momentary outputmissing
- Speed boundarypublished
- Transmission ratio / errorpublished
- Electrical input / consumptionpublished
- Control and communication interfacemissing
- Position / torque feedbackpublished
Procurement field coverage15%
2 of 13 selected fields published
- Official product / sales routepublished
- Lifecycle statepublished
- Exact orderable SKU / part numbermissing
- Price with region, currency and quantitymissing
- Lead time with check datemissing
- Commercial availability / stock statemissing
- Minimum order quantitymissing
- Authorized distributor / sales channelmissing
- CAD / STEP / interface drawingmissing
- Certification with identifiermissing
- MTBF / failure / reliability datamissing
- Warranty termsmissing
- PCN / EOL / replacement noticemissing
Coverage measures whether a selected public field is present with non-U evidence. It is not a product score, compatibility result, certification, availability confirmation or procurement recommendation. Download the complete readiness coverage JSON →
1 bounded physical-evidence record.
Publisher independence, identity precision and measurement scope vary by row. Results remain bounded by the disclosed specimen, setup, workload and metric; an inconclusive mapping is evidence associated with the catalog model, not verification of a manufacturer claim.
| Measured result | Conditions | Claim mapping | Source |
|---|---|---|---|
| Independent real-system experimentindependent_physical_evidence | DM-J4310-2EC actuator operated on a physical Unitree H1 research platformReal-robot experimental deployment; the paper reports the actuator model but not the catalogued V1.2 subrevision. | inconclusiveThe paper establishes real-hardware use of DM-J4310-2EC but does not isolate torque or print the V1.2 subrevision; the catalogued rated-torque claim remains inconclusive. | Real-world humanoid manipulation experiment with DM-J4310-2EC ↗Hardware appendix and real-robot experiments Checked 2026-08-26 |
Reported values, conditions attached.
Evidence state describes the claim—not the prestige of the company or document.
| Claim | Reported value | Condition / boundary | State | Source |
|---|---|---|---|---|
| Exact model and revisionmodel_identity | DM-J4310-2EC V1.2（24V） | The manual tabulates DM-J4310-2EC V1.2（24V）and DM-J4310-2EC V1.2（48V）as separate columns; this record freezes the 24 V variant. | M · Manufacturer claimed | DM-J4310-2EC V1.2 User Manual V1.2 (2026-04-09), official dmBots GitHub repository ↗Specifications table (pages 6-7), operating-voltage section and interface description · User Manual V1.2, dated 2026-04-09 Checked 2026-08-19 |
| Rated torquerated_torque | 3.5 N·m | Shared value for the 24 V and 48 V columns; the manual does not attach a thermal test method or duty definition to it. | M · Manufacturer claimed | DM-J4310-2EC V1.2 User Manual V1.2 (2026-04-09), official dmBots GitHub repository ↗Specifications table (pages 6-7), operating-voltage section and interface description · User Manual V1.2, dated 2026-04-09 Checked 2026-08-19 |
| Peak torqueheadline_torque | 12.5 N·m | Peak endpoint (peak phase/supply current 20A/16.5A@24V); not a continuous operating point. | M · Manufacturer claimed | DM-J4310-2EC V1.2 User Manual V1.2 (2026-04-09), official dmBots GitHub repository ↗Specifications table (pages 6-7), operating-voltage section and interface description · User Manual V1.2, dated 2026-04-09 Checked 2026-08-19 |
| Rated and no-load speedspeed | Rated 120 rpm; maximum no-load 200 rpm | 24 V column; the 48 V variant lists 450 rpm maximum no-load speed. No-load values are endpoints. | M · Manufacturer claimed | DM-J4310-2EC V1.2 User Manual V1.2 (2026-04-09), official dmBots GitHub repository ↗Specifications table (pages 6-7), operating-voltage section and interface description · User Manual V1.2, dated 2026-04-09 Checked 2026-08-19 |
| Reduction ratiogear_ratio | 10:1 | Manufacturer specification. | M · Manufacturer claimed | DM-J4310-2EC V1.2 User Manual V1.2 (2026-04-09), official dmBots GitHub repository ↗Specifications table (pages 6-7), operating-voltage section and interface description · User Manual V1.2, dated 2026-04-09 Checked 2026-08-19 |
| Operating voltageinput_voltage | Rated 24V; operating range 24V–28V, minimum 20V, maximum 28V | Operating-voltage section for the 24 V motor driver; the 48 V driver instead lists 24V–48V with a 58V maximum. | M · Manufacturer claimed | DM-J4310-2EC V1.2 User Manual V1.2 (2026-04-09), official dmBots GitHub repository ↗Specifications table (pages 6-7), operating-voltage section and interface description · User Manual V1.2, dated 2026-04-09 Checked 2026-08-19 |
| Rated currentcurrent | 4.9A/3.1A@24V | Published as rated phase current / rated supply current. | M · Manufacturer claimed | DM-J4310-2EC V1.2 User Manual V1.2 (2026-04-09), official dmBots GitHub repository ↗Specifications table (pages 6-7), operating-voltage section and interface description · User Manual V1.2, dated 2026-04-09 Checked 2026-08-19 |
| Weightmass | ~325 g | Published with the approximation qualifier. | M · Manufacturer claimed | DM-J4310-2EC V1.2 User Manual V1.2 (2026-04-09), official dmBots GitHub repository ↗Specifications table (pages 6-7), operating-voltage section and interface description · User Manual V1.2, dated 2026-04-09 Checked 2026-08-19 |
| Envelopedimensions | Outer diameter 57 mm; height 46 mm | Manufacturer specification. | M · Manufacturer claimed | DM-J4310-2EC V1.2 User Manual V1.2 (2026-04-09), official dmBots GitHub repository ↗Specifications table (pages 6-7), operating-voltage section and interface description · User Manual V1.2, dated 2026-04-09 Checked 2026-08-19 |
| Encodersencoder | 2× magnetic encoders (single-turn), 16-bit resolution; output-shaft single-turn absolute position retained after power loss | Specifications table plus motor-features section. | M · Manufacturer claimed | DM-J4310-2EC V1.2 User Manual V1.2 (2026-04-09), official dmBots GitHub repository ↗Specifications table (pages 6-7), operating-voltage section and interface description · User Manual V1.2, dated 2026-04-09 Checked 2026-08-19 |
| Communication interfacescommunications | Control: CAN@1Mbps; configuration: UART@921600bps; XT30(2+2)-F power connector with CAN, daisy-chainable | Specifications table and interface description; CAN protocol frames must still be fixed from the manual for one robot. | M · Manufacturer claimed | DM-J4310-2EC V1.2 User Manual V1.2 (2026-04-09), official dmBots GitHub repository ↗Specifications table (pages 6-7), operating-voltage section and interface description · User Manual V1.2, dated 2026-04-09 Checked 2026-08-19 |
| Control modescontrol_modes | MIT mode; position-velocity mode; velocity mode; force-position hybrid mode | Manufacturer specification. | M · Manufacturer claimed | DM-J4310-2EC V1.2 User Manual V1.2 (2026-04-09), official dmBots GitHub repository ↗Specifications table (pages 6-7), operating-voltage section and interface description · User Manual V1.2, dated 2026-04-09 Checked 2026-08-19 |
| Thermal protection thresholdsoperating_temperature | Driver over-temperature shutdown at 120°C; motor over-temperature configurable, recommended ≤100°C | Protection thresholds, not an ambient operating-range statement; both exit Enable Mode when triggered. | M · Manufacturer claimed | DM-J4310-2EC V1.2 User Manual V1.2 (2026-04-09), official dmBots GitHub repository ↗Specifications table (pages 6-7), operating-voltage section and interface description · User Manual V1.2, dated 2026-04-09 Checked 2026-08-19 |
| Continuous or thermally rated output torquecontinuous_torque | Not published in cited public evidence | RCI checked the cited official public evidence on the verification date.The cited official manual publishes a rated torque of 3.5NM but no thermal test method, duty-cycle limit, cooling condition or allowable stall duration defining it as a continuous envelope; the published T–N curve is conditioned at 24 V, 36 rpm constant speed and 25°C ambient only. | U · Unknown | DM-J4310-2EC V1.2 User Manual V1.2 (2026-04-09), official dmBots GitHub repository ↗Specifications table (pages 6-7), operating-voltage section and interface description · User Manual V1.2, dated 2026-04-09 Checked 2026-08-19 |
| Independent exact-actuator robot validationindependent_robot_validation | Not published in cited public evidence | RCI checked the cited official public evidence on the verification date.RCI has not received, serialised, loaded, thermally instrumented or endurance-tested a DM-J4310-2EC V1.2. | U · Unknown | DM-J4310-2EC V1.2 User Manual V1.2 (2026-04-09), official dmBots GitHub repository ↗Specifications table (pages 6-7), operating-voltage section and interface description · User Manual V1.2, dated 2026-04-09 Checked 2026-08-19 |
Known limits
What this record does not prove.
- The official manual mixes 24 V and 48 V variants in one table; this record freezes the 24 V variant and carries 48 V figures only as notes, never merged.
- Peak torque, peak current and no-load speed are endpoints and must not be presented as continuous operating points; rated torque carries no published thermal definition.
- The current official revision is V1.2; records or listings labeled V1.0/V1.1 or an informal “V4” refer to other revisions and are not covered here.
- No serialised specimen, RCI torque test or thermal test exists for this record.