A harmonic rotary actuator is an AC servo rotary actuator that integrates a high-torque precision harmonic reducer, a frameless torque motor, an optional hollow-shaft multi-turn absolute optical encoder, an electromagnetic brake, and a servo drive into one compact unit.

Harmonic rotary actuators offer stable performance with a precision retention life of more than 15,000 hours.
With a direct-drive integrated design and a fully sealed structure, installation is simple and truly plug-and-play.
For applications with limited space, heavy loads, and high precision requirements, harmonic mechatronic actuators provide an ideal solution.

Harmonic servo actuators are widely used in:
Machine tool rotary tables
Laser cutting systems
Electronics and semiconductor equipment
Precision CNC machine tools
3C (computer, communication, consumer electronics) equipment
Precision laser processing equipment
LED manufacturing equipment
Inspection and testing equipment
Medical devices
Robots and special robotic arms
Printing machinery and inkjet equipment
Glass processing equipment
Precision measuring instruments

The actuator combines high overturning rigidity, high torque load capacity, and smooth operation, featuring zero backlash and low noise.
With a service life exceeding 15,000 hours, it is maintenance-free and does not require lubricant replacement.
The hollow shaft design allows easy routing of cables and pneumatic lines. It is compatible with standard servo drives and supports plug-and-play installation.

Operating life: 15,000 hours
Operating temperature: −20 °C to +75 °C

The harmonic rotary actuator is equipped with a 23-bit encoder compliant with the Tamagawa protocol.
The motor is designed to work with a 48 V servo drive. Customers may use their own Tamagawa-compatible encoders, or HONPINE can provide an external drive for added convenience.

HONPINE operates two comprehensive test benches rated at 0–100 N·m and 100–1000 N·m, covering the full size range from 11 to 58.
High-precision power analyzers accurately measure current, torque, efficiency, and other parameters, automatically generating performance curves and torque-speed (T-n) curves.
This ensures all specifications are verified by actual output performance, not theoretical estimates. Additional equipment is used for accuracy and rigidity testing.

To address common industry challenges, HONPINE has introduced the upgraded HAT-G series rotary actuator.
While conventional models may deform and rebound under load, the HAT-G series uses advanced proprietary control algorithms to achieve over three times higher rigidity. Under identical loading conditions, dial indicator deflection is almost negligible.
An optional high-precision encoder is available, enabling positioning accuracy of ≤5 arc-seconds.

HONPINE uses high-precision power analyzers to accurately measure current, torque, efficiency, and other key parameters, automatically generating data curves and torque-speed (T-n) curves.
All performance data is validated through real output testing, supported by additional accuracy and rigidity measurement equipment, ensuring reliable and truthful specifications.