Frameless torque motor
maxon EC frameless DT / HT
Brushless rotor-and-stator kits for direct integration into robot joints and exoskeletons, in a DT range for dynamics and an HT range for high torque.
Key specifications
| Outer diameter | 38–90 mm |
|---|---|
| Continuous torque (max) | 2.84 Nm |
| Power (max) | 680 W |
Summarised in our own words from maxon group (maxon motor ag)'s published data; series maxima, individual models vary. Last checked 2026-10-29. Source 1 · Source 2
Notes on this data
maxon Product Range 2026/27 catalogue. Nominal torque max 2,840 mNm (DT 85 L). Diameters taken from model designations (DT 38-85, HT 60-90). Power/torque pairing in page text matched by order - check against data sheets. Max speed not published on the overview page.
Specify Motion is not affiliated with maxon group (maxon motor ag). maxon and EC frameless DT / HT are used only to identify the product. Comparisons use published figures; always confirm against the current datasheet.
Typical applications
Alternatives that meet or exceed these figures
Engineers often come to us with a maxon part number and leave with an alternative that is easier to source, quicker to deliver or a better fit for the machine. These 3 series from our supply network are the closest match on published figures.
Compact frameless rotor/stator kits for low-voltage (48 VDC) systems, in 45-90 mm frames with low- and high-speed windings. Suited to small rotary tables and robot joints where the motor is built into the host structure.
| Published maximum | EC frameless DT / HT | ADR-F |
|---|---|---|
| Continuous torque | 2.84 Nm | 3.75 Nm meets or exceeds |
| Peak torque | — | 11.22 Nm |
| Speed | — | 3,000 rpm |
High-voltage (600 VDC) frameless torque motor kits from 110 to 360 mm with large through-bores and integrated Hall sensors; the high-torque end of the Akribis frameless range.
| Published maximum | EC frameless DT / HT | ADR-P |
|---|---|---|
| Continuous torque | 2.84 Nm | 365 Nm meets or exceeds |
| Peak torque | — | 985.5 Nm |
In-runner frameless torque motors from 65 to 410 mm stator OD with 8-64 poles, low profile and large through-holes; windings tailored to target speed.
| Published maximum | EC frameless DT / HT | TI Series In-Runner Frameless Direct D… |
|---|---|---|
| Continuous torque | 2.84 Nm | 70 Nm meets or exceeds |
Figures are the highest published for each series and are not always measured the same way. A higher figure is not automatically a better choice: mounting, duty cycle, feedback, connectors and approvals matter too. An engineer will check the fit against your application before recommending anything.
Other frameless torque motor series
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