Coreless motor, metal gearing, absolute encoder and Protocol 2.0 controller in a compact servo
Motion & Actuation · Networked smart servo actuator
XM540-W270-R
A compact current-controllable servo whose page explicitly warns that the headline stall torque is not a continuous rating.
ROBOTIS DYNAMIXEL XM540-W270-R · Also: XM540-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 deployed experimentindependent_deployed_experiment | Used as the rotation motor in a weaving-gripper study with five repeated trialsThe XM540-W270-R drove a PET-strip gripper from an initial −70° angle to four final-angle conditions before vertical pull-to-failure testing with load-cell and torque-sensor instrumentation. | supportedThe catalog claim already carries a qualified external V source with its original condition and location. | Grasping through dynamic weaving with entangled closed loops ↗Methods: Experimental method, lines identifying XM540-W270-R and the five repeated trials Checked 2026-08-10 |
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 stall torque and warns that it differs from continuous and real-world output. | U · Unknown | ROBOTIS XM540-W270-T/R e-Manual ↗Specifications and stall-torque warning Checked 2026-08-10 |
| Stall torqueheadline_torque | 10.6 N·m | 12.0 V and 4.4 A; momentary stall condition. | M · Manufacturer claimed | ROBOTIS XM540-W270-T/R e-Manual ↗Specifications and stall-torque warning Checked 2026-08-10 |
| No-load speedspeed | 30 rpm | 12.0 V; no load. | M · Manufacturer claimed | ROBOTIS XM540-W270-T/R e-Manual ↗Specifications and stall-torque warning Checked 2026-08-10 |
| Weightmass | 165 g | No additional condition stated in the selected source. | M · Manufacturer claimed | ROBOTIS XM540-W270-T/R e-Manual ↗Specifications and stall-torque warning Checked 2026-08-10 |
| Gear ratiogear_ratio | 272.5:1 | No additional condition stated in the selected source. | M · Manufacturer claimed | ROBOTIS XM540-W270-T/R e-Manual ↗Specifications and stall-torque warning Checked 2026-08-10 |
| Physical connectioncommunications | RS-485 multidrop | R variant; T variant uses TTL. | M · Manufacturer claimed | ROBOTIS XM540-W270-T/R e-Manual ↗Specifications and stall-torque warning Checked 2026-08-10 |
| Backlashbacklash | 15 arcmin / 0.25° | No additional condition stated in the selected source. | M · Manufacturer claimed | ROBOTIS XM540-W270-T/R e-Manual ↗Specifications and stall-torque warning Checked 2026-08-10 |
| Independent deployed experimentindependent_deployed_experiment | Used as the rotation motor in a weaving-gripper study with five repeated trials | The XM540-W270-R drove a PET-strip gripper from an initial −70° angle to four final-angle conditions before vertical pull-to-failure testing with load-cell and torque-sensor instrumentation.This confirms exact-model use in the disclosed apparatus; it does not independently validate stall torque, backlash, continuous output or service life. | V · Independently verified | Grasping through dynamic weaving with entangled closed loops ↗Methods: Experimental method, lines identifying XM540-W270-R and the five repeated trials Checked 2026-08-10 |
Known limits
What this record does not prove.
- No continuous torque is published in the selected specification.
- Stall torque and no-load speed are opposite endpoints and cannot be multiplied as an operating point.
- Protocol compatibility does not establish deterministic system-level timing.