• EHD-14 dual-braided quadruped robot external dual automated robotic arm harmonic joint module
  • EHD-14 dual-braided quadruped robot external dual automated robotic arm harmonic joint module
  • EHD-14 dual-braided quadruped robot external dual automated robotic arm harmonic joint module
  • EHD-14 dual-braided quadruped robot external dual automated robotic arm harmonic joint module
  • EHD-14 dual-braided quadruped robot external dual automated robotic arm harmonic joint module
  • EHD-14 dual-braided quadruped robot external dual automated robotic arm harmonic joint module
  • EHD-14 dual-braided quadruped robot external dual automated robotic arm harmonic joint module
  • EHD-14 dual-braided quadruped robot external dual automated robotic arm harmonic joint module
  • EHD-14 dual-braided quadruped robot external dual automated robotic arm harmonic joint module
  • EHD-14 dual-braided quadruped robot external dual automated robotic arm harmonic joint module

EHD-14 dual-braided quadruped robot external dual automated robotic arm harmonic joint module

11N.m double-braided harmonic joint module, high precision, strong torque, compact and durable, suitable for robot joint drive.

  • Rated Speed RPM:25
  • Rated Torque N.m:11
  • Rated Power W:100
  • Rated Current A:6.5
  • Rated Current:Dual encoder/ABS - 17bit

USD: 1030

ablity:Monthly Output1000

contact shop

Product Description

11N.m double-braided harmonic joint module, military-grade cross-roll monitoring sub-bearing bending resistance increased by 30%, dual encoder full closed-loop control, accuracy <0.01°. High rigidity design, 3D density increased by 25%, backlash <20arcmin, low vibration. Supports intelligent, coordinate collaborative robots and precision equipment, and reliable power.

Port Definition

Port Description

EtherCAT_OUT

EtherCAT output

EtherCAT_In

EtherCAT input

CAN_H

CAN_H network signal terminal

CAN_L

CAN_L network signal terminal

GND

Power supply negative pole

VCC

Power supply positive pole

BAT-

Multi-turn battery negative pole

BAT+

Multi-turn battery positive pole

 T+

Master sends control command to module

 T-

Module sends status feedback to master

 R+

Master reflects module status data

 R-

Module reflects master control command

Product parameters

Parameters

Unit

EHD - 14

EHD - 17

EHD - 20

EHD - 25

EHD - 32

Gear ratio

-

100

100

100

100

100

Input Voltage

V

48

48

48

48

48

No Load Speed

RPM

30

30

30

30

20

No Load Current

A

0.9

145

2.59

1.61

3.9

Rated Speed

RPM

25

25

25

25

18

Rated Torque

N.m

11

35

50

108

150

Rated Power

W

100

180

250

400

700

Rated Current

A

6.5

9

13

16

20

Peak Torque

N.m

28

54

80

157

229

Peak Current

A

16.25

13.86

20.8

23.2

33.44

Back - EMF Constant

Vdc/kgm

1.39

2.79

2.79

4.89

6.28

Torque Constant

N.m/A

0.02

0.04

0.04

0.07

0.09

Phase Resistance

Ω

0.62

0.7

0.36

0.155

0.08

Phase Inductance

mH

0.43

0.47

0.51

0.33

0.18

Pole Pair

-

10

10

10

10

10

3 Phase Connection

-

Y

Y

Y

Y

Y

Backlash

Arcsec

-

<20

<20

<20

<20

Encoder Type&Interface

-

Dual encoder/ABS - 17bit

Dualencoder/ABS-17bit

Dualencoder/ABS-17bit

Dualencoder/ABS-17bit

Dualencoder/ABS-17bit

Repeat Position Accuracy

Degree

0.01

<0.01

<0.01

<0.01

<0.01

Communication

-

CAN / EtherCAT

CAN  /EtherCAT

CAN /EtherCAT

CAN/ EtherCAT

CAN /EtherCAT

Insulation grade

-

F

F

F

F

F

* Rated terrain test method: Test at rated temperature under ambient temperature of 24 degrees Celsius (no other air intake method). The rated terrain value of the motor is when the motor terrain reaches temperature equilibrium and can work under the condition of 60 degrees temperature rise.

* Standard motors can support brake or no brake.

* Standard motors do not have waterproof function. If you need IP54, please contact sales before placing an order.

* Standard motors support CANBUS and EtherCAT

Stall torque data

EHD-14

Torque

Temperature rise

Stalling time

Phase current

(N.m)

()

(s)

(Arms)

16.5

3

15

3.7

22

4

10

4.8

27.5

6

8

6.6



Application

The 11N.m dual-encoder harmonic joint module is designed for high-precision motion control and is suitable for high-dynamic scenarios such as industrial robot joint drive, collaborative robot arm rotation unit, precision automation turntable, medical robot arm actuator, and aerospace servo actuation system. Its military-grade anti-bending design meets the large load requirements of exoskeleton knee joints, bionic robot hip joints, etc. The dual encoder configuration is particularly suitable for ultra-precise operations such as semiconductor equipment wafer handling and optical instrument precision focusing. It can also be expanded to AGV steering systems, special equipment pan/tilts, and other fields that require intelligent status monitoring.

Service

1. Does it support waterproof and dustproof? What is the protection level?

Yes, our joint modules can be customized with waterproof and dustproof functions according to customer needs. 

The standard version is not waterproof for indoor applications, and can be equipped with IP56 protection, which is suitable for certain outdoor 

or humid environments. If you have higher protection requirements (such as IP67), you can contact us for customization.


2. Does it support customized reduction ratio?

Yes. We can provide customized solutions with different reduction ratios according to your application requirements.

The conventional reduction ratio range covers: 10:1 ~ 200:1, and the best combination can be matched according to load, speed, and torque requirements.


3. What is the difference between the single encoder and dual encoder versions?

The single encoder version monitors the rotation of the motor end and is suitable for general precision requirements;

 the dual encoder version monitors the motor end and the output end at the same time, which can effectively compensate 

for the backlash and elastic error, and is suitable for high-precision control and high safety requirements (such as collaborative robots, medical equipment).


4. What communication interfaces can the joint module support?

The standard version supports analog control (current/voltage command) or pulse command control;

According to the needs, it can be optionally equipped with support for industrial bus protocols

such as CANopen, EtherCAT, Modbus-RTU, etc. (customization is required).


5. Does it support integrated drive and control? Can it be directly connected to the controller?

We provide optional integrated drive and control joint modules with built-in motor drivers and position servo controllers.

Users can directly control through the bus or pulse interface without external independent drivers, simplifying wiring and system integration.


6. Are there standard 3D model files available for download?

Yes. We provide 3D model files in STEP format for all models, which facilitates customers to quickly integrate mechanical design.

If you need to obtain it, please contact our sales staff to obtain the download link or data package.


7. What is the operating temperature range?

The standard operating temperature range is: -10°C ~ +50°C.

If you need to resist low or high temperature applications (such as cold storage, hot working environment), 

you can customize special temperature control solutions.


8. Can the joint module be designed hollow? Can it be wired?

Some models are designed with hollow shafts, and the center aperture can be used for wiring, air pipes, water pipes, etc., 

which is convenient for realizing the functional layout of complex end effector.

For specific center aperture sizes, please refer to the model selection table or consult customer service.


9. How long is the standard delivery period and customized delivery period?

Standard model delivery period: usually 7-14 working days.

The delivery period for customized requirements (such as IP56 waterproof, reduction ratio customization, communication protocol customization, etc.) 

depends on specific requirements, generally 5-10 weeks.


10. How long is the warranty period? How about after-sales service?

All joint module products provide a 12-month warranty period (under normal use).

We provide remote technical support, fault diagnosis guidance, and fast spare parts supply services.

Paid repair and maintenance services are also available outside the warranty period.

Pack

Contact Us

Supplier Information

Company Name:MotionCore Robotics

Contact Email:Service80@ttbridge.com

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