# ENCOS EC-A13720-P1-11.4 Planetary Joint

![ENCOS EC-A13720-P1-11.4 Planetary Joint](https://parts.trymaglev.com/img/ac-encos-ec-a13720-p1-11-4.webp)

Very large 11.4:1 planetary joint (170 mm, 3.16 kg, dual encoder) for full-size humanoid hip/knee joints needing 400 N·m peak.

- Maglev ID: ac-encos-ec-a13720-p1-11-4
- Brand: ENCOS
- MPN: EC-A13720-P1-11.4
- Category: actuators / Integrated Joint Actuators
- Origin: CN (maker HQ, factory not confirmed)
- Maker: Nanjing ENCOS Intelligent Technology (南京因克斯智能科技有限公司) (brand, CN)
- NDAA: unknown · Blue UAS: unknown · FCC: n/a
- HTS: 8501.31.40.00 (typical)
- MOQ: unknown · Lead time: unknown
- Confidence: REPORTED

## Price
- 1+: $2,370 (distributor, 2026-10-30, https://aifitlab.com/products/encos-ec-a13720-p1-11-4-motor; Variant: CAN & dual encoder, no adapter)

## Specifications
- Peak torque: 400 N·m
- Rated torque: 120 N·m
- Gear ratio: 11.4:1 planetary
- Voltage: 48 V rated
- Mass: 3160 g
- Interface: CAN, 1 Mbps (dual encoder)

## Links
- Product: https://aifitlab.com/products/encos-ec-a13720-p1-11-4-motor
- Datasheet: none
- CAD: none

## Equivalents
- Damiao DM-J10422P-2EC Joint Motor (ac-damiao-dm-j10422p-2ec)

## Sources
- https://aifitlab.com/products/encos-ec-a13720-p1-11-4-motor (spec table + price + availability (distributor; product JSON https://aifitlab.com/products/encos-ec-a13720-p1-11-4-motor.js))