# maxon EC-i 40, 70 W, 36 V, Hall sensors

![maxon EC-i 40, 70 W, 36 V, Hall sensors](https://parts.trymaglev.com/img/mo-maxon-ec-i-40-70w-449470.webp)

40 mm internal-rotor brushless motor with high torque density, used in compact robot joints and exoskeleton drives.

- Maglev ID: mo-maxon-ec-i-40-70w-449470
- Brand: maxon
- MPN: 449470
- Category: motors / Small Precision DC & BLDC Motors
- Origin: CH (maker HQ, factory not confirmed)
- Maker: maxon (brand, CH)
- NDAA: unknown · Blue UAS: unknown · FCC: n/a
- HTS: 8501.31.20.00 (typical)
- MOQ: 1 · Lead time: unknown
- Confidence: VERIFIED

## Price
- 1+: $343.44 (list, 2026-10-29, https://www.maxongroup.us/maxon/view/product/motor/ecmotor/EC-i/449470)

## Specifications
- Diameter: 40 mm
- Nominal voltage: 36 V
- Nominal torque: 84.8 mNm
- No-load speed: 10,700 rpm
- Power rating: 70 W
- Weight: 240 g
- Stall torque: 728 mNm
- Nominal current: 2.47 A

## Links
- Product: https://www.maxongroup.us/maxon/view/product/motor/ecmotor/EC-i/449470
- Datasheet: https://www.maxongroup.us/medias/sys_master/root/9406692065310/Cataloge-Page-EN-308.pdf
- CAD: https://www.maxongroup.us/maxon/view/product/motor/ecmotor/EC-i/449470

## Equivalents
- maxon EC 45 flat 70 W, 24 V, Hall sensors (mo-maxon-ec45-flat-70w-397172)

## Works with
- Elmo Gold Whistle 20/100 Servo Drive (mo-elmo-gold-whistle-20-100)

## Sources
- https://www.maxongroup.us/maxon/view/product/motor/ecmotor/EC-i/449470 (specs, USD list price, STEP CAD offered)