Product Description
PH25 harmonic 96-144 Nm rated torque, 38/25 rpm speed, joint module with dual 19-bit high-precision encoders, taking into account both high load and precise control.

Inner diameter: 18mm
Outer diameter: 110mm
Height: 103mm
Weight (without/with brake) : 3098g/2927g
Features

Ultra-thin drop lock Brake smooth and stable No wear and tear

All-hardware FOC technology
Chip-level FPGA research and development
All three ring control frequencies are 20K, with fast response.
16-bit ADC with a sampling rate of 1MHz
Product parameters
Model | PH08 | PH11 | PH14 | PH17 | PH20 | PH25 | ||||||
Motor type | Inner rotor torque motor | |||||||||||
Diameter | 40mm | 52mm | 70mm | 80mm | 90mm | 110mm | ||||||
Hollow inner diameter | 4.6mm | 6mm | 14mm | 14mm | 18mm | 18mm | ||||||
Weight (with brake/without brake) | 无/188g | 495g/434g | 1108g/1023g | 1350g/1223g | 1991g/1960g | 3098g/2927g | ||||||
Reverse backlash | 15arcsec | |||||||||||
Noise | <70db | |||||||||||
Temperature range | -20~80°C | |||||||||||
Operating voltage | 24v-36v | 24v-48v | ||||||||||
Rated power | 36w | 120w | 120w | 200w | 250w | 500w | ||||||
Speed ratio | 51 | 101 | 51 | 101 | 51 | 101 | 51 | 101 | 81 | 121 | 81 | 121 |
Rated speed | 60rpm | 30rpm | 60rpm | 30rpm | 60rpm | 30rpm | 60rpm | 30rpm | 38rpm | 25rpm | 38rpm | 25rpm |
Rated torque | 1.0nm | 1.6nm | 3.5nm | 6.8nm | 18nm | 22nm | 30nm | 38nm | 52nm | 78nm | 96nm | 144nm |
Peak torque | 2.8nm | 3.5nm | 6.8nm | 13nm | 38nm | 45nm | 52nm | 66nm | 104nm | 156nm | 206nm | 220nm |
Encoder accuracy | 19bit | |||||||||||
Encoder type | Dual magnetic encoder | |||||||||||
Electromagnetic brake | Power-off brake |
PH25
Exploded View
The PH25 joint module integrates FOC vector drive, dual absolute encoders, high-torque frameless motor and precision harmonic reduction mechanism.

1. All-hardware FOC driver design,
high-speed closed-loop computing
2. High-precision dual-magnetic encoder, 19-bit + 19-bit
3. Ultra-thin power-off brake
4. High-density torque motor
with low cogging torque
5. High-density harmonic reduction motor,
featuring low noise and high precision
6. The entire series features hollow design,
with the smallest hollow module having an outer diameter of 40mm
Application
The 96-144Nm high-torque joint module is suitable for industrial robots, collaborative mechanical arms and automated equipment, providing precise motion control, meeting the demands of heavy loads and high-precision operations, and enhancing production efficiency.

FAQ
1. 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: 51:1 ~ 121:1, and the best combination can be matched according to the load, speed, and torque requirements.
2. 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). We provide 19-bit single-turn dual encoders
3. What communication interfaces can the joint module support?
The standard version supports analog control (current/voltage command) or pulse command control;
According to requirements, it can optionally support CAN, EtherCAT, and other industrial bus protocols.
4. Does it support integrated drive and control? Can it be directly connected to the controller?
We provide optional drive-control integrated joint modules with built-in motor drivers and position servo controllers.
Users can control directly through the bus or pulse interface without external independent drivers, simplifying wiring and system integration.
5. Are there standard 3D model files available for download?
Yes. We provide 3D model files in STEP format for all models, which is convenient for 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.
6. Can the joint module be designed hollow? Can it be wired?
All 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 effectors.
For specific center aperture dimensions, please refer to the model selection table or consult customer service.
7. 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 protection grade, reduction ratio customization, communication protocol customization, etc.) depends on the specific requirements, generally 5-10 weeks.
8. How long is the warranty period? How is the after-sales service?
All joint module products have 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.
Packing

