How HONPINE TCHL Harmonic Drive Actuator Features for Intelligent Robotics Applications?

In the era of rapidly advancing embodied intelligence, HONPINE has increased its investment in innovation and launched the new TCHL harmonic drive actuator. This article explores the key performance advantages that enable the HONPINE TCHL harmonic drive actuator to win the trust of robot manufacturers.

Under What Industry Background Was the HONPINE TCHL Harmonic Drive Actuator Developed?

In the field of humanoid robots, harmonic joints are critical components whose performance and design directly affect robot flexibility, payload capacity, and cost efficiency. As humanoid robot applications continue to expand from industrial manufacturing to service industries, market demand for harmonic joints is also growing rapidly.

However, the current market still faces many challenges. On one hand, traditional harmonic joints are relatively heavy, limiting robot payload capacity and flexibility. This issue has become increasingly significant as lightweight robotic design gains importance. On the other hand, existing solutions still have clear limitations in force-position control accuracy, installation convenience, and cost management. In practical applications, users often encounter problems such as insufficient precision, complicated installation processes, and high overall costs. These challenges not only restrict the wider adoption of humanoid robots across various industries, but also highlight the urgent market demand for more efficient, flexible, and cost-effective harmonic joint solutions.

To address these industry challenges, the HONPINE TCHL series delivers significant performance improvements and optimized solutions, effectively meeting the complex requirements of different application scenarios while providing new options for humanoid robotics and high-end intelligent manufacturing.

What Advantages Help the HONPINE TCHL Harmonic Drive Actuator Win Over Robot Manufacturers?

Reinforcement learning for humanoid robots relies heavily on high-performance joint sensing capabilities. To achieve effective Sim-to-Real transfer, joints must provide millisecond-level latency, high signal-to-noise torque feedback, wide dynamic range, and excellent linearity to support high-frequency force control requirements for model predictive control and impedance-based algorithms.

The HONPINE TCHL series harmonic joints utilize a self-developed integrated cross roller bearing technology combined with compact structural optimization to achieve extreme lightweight performance. Without increasing size or weight, the design significantly reduces both radial and axial dimensions of the joint module. Currently, the smallest model, TCHL-11M, weighs only 0.35 kg while delivering a peak torque of 25 Nm. The largest model, TCHL-32H, weighs only 3.3 kg and achieves a peak torque of 799 Nm. Compared with most external force sensor solutions on the market, this integrated design avoids problems such as rigidity loss and reduced sensitivity.

The application of integrated cross roller bearing technology not only improves transmission efficiency and structural rigidity, but also provides the foundation for force-position hybrid closed-loop control in the TCHL series harmonic joints actuator. Through embedded torque sensing technology, the TCHL series integrates high-precision force sensors directly at the output end of industrial-grade precision harmonic reducers, effectively eliminating the structural flexibility issues associated with traditional external sensor solutions. This enables real-time collection of output position and torque data, providing native high-bandwidth force feedback support for reinforcement learning algorithms.

Combined with force-position hybrid closed-loop control, the TCHL series sensors also enable smooth switching between position mode and torque mode, significantly improving dynamic response performance in precision assembly and force-control applications.

The multi-scenario applications of humanoid robots also place more comprehensive technical requirements on harmonic joint modules. These modules must achieve a balance between lightweight design, high rigidity, and high power density. In addition, high protection ratings such as IP65, vibration resistance, and electromagnetic compatibility are essential for adapting to complex industrial and outdoor environments.

At the system integration level, the HONPINE TCHL series adopts an integrated electromechanical interface design, combining power transmission and real-time communication protocols such as EtherCAT and CAN FD into a single connector. An 8 mm cable diameter supports hollow wiring, which not only improves electromagnetic compatibility for the entire robot system but also satisfies the strict synchronization requirements of multi-joint coordinated control. The IP65 protection rating ensures long-term operational stability in harsh environments such as dust and moisture.

In terms of installation flexibility, the TCHL series harmonic joint housing integrates multiple standard mechanical interfaces across six surfaces, supporting various mounting methods including dual-side fixing, bottom direct mounting, and radial side installation. This greatly facilitates overall robot structural optimization. Since the joint design already reserves mechanical interfaces, the use of adapter flanges and additional connectors is significantly reduced.

A single robotic arm assembled with the TCHL series harmonic joints weighs only 6 kg while supporting an effective payload of 5 kg, achieving an impressive payload-to-weight ratio of 83%.

To learn more about HONPINE harmonic reducers, planetary and harmonic joint modules, please contact us for additional information.