The EHD25 joint motor uses a 17-bit high-precision absolute dual encoder to achieve ±0.005° repeatable positioning accuracy and support full closed-loop control. Built-in cross roller bearings increase axial/radial load bearing capacity by 30%, with stronger rigidity and longer life. The modular design integrates harmonic reducers, brakes and temperature sensors, with an IP65 protection level, suitable for high-precision transmission scenarios such as industrial robots and medical equipment, with an average failure-free time of >10,000 hours.

This product adopts a highly integrated design, with a compact and lightweight overall structure, and perfectly integrates core functional modules such as high-performance FOC vector control drive board, high-precision multi-turn absolute encoder, high-torque density frameless torque motor and precision harmonic reduction transmission mechanism. It realizes the integrated integration of drive control, position feedback, power output and precision reduction.

This joint module is suitable for high-precision low-to-medium load automation scenarios, such as collaborative robot joints, medical robotic arms, or precision rotary platforms. The 108N·m rated torque is matched with a 25RPM speed, taking into account both strength and motion stability; the 17-bit dual encoder achieves ±0.005° repeatability, meeting the needs of precision assembly and testing; the cross roller bearing enhances radial/axial rigidity and extends service life; it supports CAN/EtherCAT bus control and can be seamlessly integrated into the Industrial 4.0 system. It is typically used in semiconductor equipment, optical adjustment, automated production lines, and other fields that require strict precision and reliability.

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 IP54 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 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.