GUANGZHOU HAOZHI INDUSTRIAL CO., LTD.

What Is a Harmonic Reducer?

A harmonic reducer is a high-precision mechanical transmission component that utilizes the elastic deformation of a flexspline to achieve high reduction ratios in a compact form.

At its core lies the harmonic drive generator, composed of a flexspline and a wave generator. The wave generator induces cyclic deformation in the flexspline through periodic excitation (often driven by an electric motor or pneumatic source), creating controlled elastic engagement between gears.

Core Functional Advantages

1. Ultra-High Precision Control

Harmonic reducers achieve transmission errors within 1 arcminute (≈0.017°) and repeatability up to ±0.02 mm.

For instance, industrial robot wrists equipped with harmonic drives can perform micro-adjustments at the 0.01 mm level—allowing them to grasp fragile components with precision. In surgical robotics such as the da Vinci system, harmonic reducers enable motion accuracy within 0.02 mm, dramatically improving surgical precision and patient outcomes.

2. Lightweight and Compact Design

With a power density up to 200 Nm/kg, harmonic reducers weigh only one-third of traditional planetary gearboxes.

In humanoid robotics—such as Tesla's Optimus—the use of harmonic reducers in upper-limb joints reduces total weight by 20–30%, while maintaining aesthetic and biomechanical design requirements (joint diameters as small as 50 mm).

3. Fast Dynamic Response

Harmonic reducers deliver millisecond-level torque adjustments, maintaining smooth performance even under rapid motion.

Haozhi Mechanical & Electrical: Driving the Localization of Harmonic Technology

When discussing the localization of harmonic drive technology in China, Guangzhou Haozhi Mechanical & Electrical Co., Ltd. (Stock Code: 300503) stands as a pioneering force.

As a leading enterprise in precision transmission and motion control, Haozhi has broken through the long-standing technological bottlenecks in harmonic reducer manufacturing—achieving full-chain autonomy from material engineering to design and processing.

Applications and Market Leadership

Their outstanding precision and reliability have broken the long-term monopoly of foreign brands in the high-end reducer market.

According to industry statistics, Haozhi commands approximately 20–25% of China's domestic harmonic reducer market, maintaining rapid growth through continuous innovation and industry collaboration.

With sustained R&D investment and deep integration across the automation ecosystem, Haozhi is accelerating the replacement of imported high-precision transmission systems—empowering the next generation of intelligent manufacturing with fully localized core technologies.