DC servo motor
maxon EC flat / ECX FLAT
Short outer-rotor brushless pancake motors for tight axial spaces, including ECX FLAT versions with integrated electronics.
Key specifications
| Outer diameter | 22–90 mm |
|---|---|
| Continuous torque (max) | 0.464 Nm |
| Speed (max) | 6,000 rpm |
| Voltage | 12-60 V windings |
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 · Source 3
Notes on this data
2026/27 catalogue lists EC 60 flat, EC 90 flat and ECX FLAT 22/32/42 (with and without IE). EC 60 flat 100 W, ~301 mNm, 6,000 rpm; EC 90 flat page read shows 160 W, ~464 mNm nominal, 5,000 rpm. Conflict: other maxon listings describe an EC 90 flat at 600 W, so power_W_max left out. Table text garbled in source.
Specify Motion is not affiliated with maxon group (maxon motor ag). maxon and EC flat / ECX FLAT 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.
Leadshine low-voltage PMSM servo motors from a 25 mm 33 W unit up to a 130 mm 2 kW unit, wound for 24-60 V DC buses. Fully published data covers torque to 6.4 Nm rated / 16 Nm peak, 17-bit absolute or 2500 ppr incremental encoders and IP65. Designed for ELD2, 2ELD2 and ELD3 drives.
| Published maximum | EC flat / ECX FLAT | ELVM Series Low-Voltage DC Servo Motors |
|---|---|---|
| Rated torque | — | 6.4 Nm |
| Peak torque | — | 16 Nm |
| Speed | 6,000 rpm | 6,000 rpm meets or exceeds |
| Power | — | 2,000 W |
Low-voltage brushless DC servo motors for 48 or 96 VDC systems, with a 12-slot/10-pole design, matched to the Kinco FD1X5 drive and aimed at robotics, CNC and automated lines.
View SMK Series Low-Voltage DC Servo Motors →Low-voltage (24-48 VDC) brushless servo motors with a 12-slot/10-pole low-cogging design, IP65 and a choice of optical or magnetic, incremental or absolute encoders. Matched to Kinco FD1 and OD drives for battery-powered and mobile machines.
View SMC Series Low-Voltage DC Servo Motors →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 dc servo motor series
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