Coreless motor, high-ratio metal gearing, encoder and embedded controller in a networked servo
Motion & Actuation · Networked smart servo actuator
XH540-W270-R
A compact networked servo whose highest torque figure is explicitly a stall value at a specified voltage and current—not a continuous joint rating.
ROBOTIS DYNAMIXEL XH540-W270-R · Also: XH540-W270-T/R
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 coverage45%
5 of 11 selected fields published
- Official product sourcepublished
- Lifecycle statepublished
- Mechanical dimensions / mass / mountingpublished
- Environmental operating limitsmissing
- Continuous or rated outputunknown
- Peak / momentary outputmissing
- Speed boundarypublished
- Transmission ratio / errorpublished
- Electrical input / consumptionmissing
- Control and communication interfacemissing
- Position / torque feedbackmissing
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 load-cell torque experimentindependent_lifting_torque_experiment | Joint torque measured during a 1.29 kg lifting cycle at 2 rpmXH540-W270-R driving the prototype directly and through a crank-rocker; rotary load cell; gravity compensation compared. | inconclusiveThe load-cell experiment supplies exact-actuator application torque traces, but its 2 rpm lifting cycle does not define a thermally bounded continuous-output rating. | Design of a Lifting Robot for Repetitive Inter-Floor Material Transport with Adjustable Gravity Compensation ↗Section 4.2 and Figure 10 Checked 2026-08-24 |
Reported values, conditions attached.
Evidence state describes the claim—not the prestige of the company or document.
| Claim | Reported value | Condition / boundary | State | Source |
|---|---|---|---|---|
| Continuous output torquecontinuous_torque | Not published in cited specification | RCI checked the cited official specification on the verification date.The e-Manual publishes momentary stall torque and warns that it differs from continuous and real-world output. | U · Unknown | ROBOTIS e-Manual — XH540-W270-T/R ↗Specifications and performance graph Checked 2026-08-10 |
| Stall torqueheadline_torque | 9.9 N·m | At 12.0 V and 4.9 A; the e-Manual warns that stall torque is not a continuous output rating. | M · Manufacturer claimed | ROBOTIS e-Manual — XH540-W270-T/R ↗Specifications and performance graph Checked 2026-08-09 |
| No-load speedspeed | 39 rpm | At 12.0 V; no load. | M · Manufacturer claimed | ROBOTIS e-Manual — XH540-W270-T/R ↗Specifications and performance graph Checked 2026-08-09 |
| Weightmass | 165 g | No additional condition stated in the selected source. | M · Manufacturer claimed | ROBOTIS e-Manual — XH540-W270-T/R ↗Specifications and performance graph Checked 2026-08-09 |
| Gear ratiogear_ratio | 272.5:1 | No additional condition stated in the selected source. | M · Manufacturer claimed | ROBOTIS e-Manual — XH540-W270-T/R ↗Specifications and performance graph Checked 2026-08-09 |
| Physical connectioncommunications | RS-485 multidrop | R suffix; T variant uses TTL. | M · Manufacturer claimed | ROBOTIS e-Manual — XH540-W270-T/R ↗Specifications and performance graph Checked 2026-08-09 |
| Backlashbacklash | 15 arcmin | Equivalent value shown by manufacturer as 0.25°. | M · Manufacturer claimed | ROBOTIS e-Manual — XH540-W270-T/R ↗Specifications and performance graph Checked 2026-08-09 |
Known limits
What this record does not prove.
- No continuous output torque is published in the main specification table.
- The stall and no-load values describe opposite ends of the operating curve.