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Precision Harmonic Drives for the Future

China Harmonic Drive (CHD®) delivers high-precision, zero-backlash gear systems engineered for robotics, automation, aerospace, and medical applications. Built with advanced ANSYS-optimized design and superior materials.

Explore Products

Zero Backlash

Perfect for precision motion control with no play between input and output.

High Torque Density

Compact design delivers big torque in a small footprint.

Long Service Life

Engineered for durability with minimal wear over time.

About China Harmonic Drive

China Harmonic Drive (CHD®) is a leading brand in harmonic driver gear products, developed by China Trans-tech Co., Ltd. With a strong focus on innovation and precision engineering, CHD® serves industries requiring high reliability and accuracy in motion control.

Our manufacturing facilities are equipped with advanced gear grinding centers, hobbing machines, and shaping equipment to ensure every component meets the highest standards of quality and performance.

  • ANSYS-optimized tooth design
  • High precision & low noise
  • Global applications in robotics and aerospace
CHS-CL-III Harmonic Drive

Our Product Range

Explore our high-performance harmonic drive units, gearboxes, and actuators designed for extreme precision and reliability across industrial and advanced technology sectors.

CHS-CL-III Harmonic Drive

CHS-CL-III Harmonic Drive

Eliminate interference analysis by ANSYS in tooth design. Accurate contour of shaped oval and flexspline for superior performance.

  • Zero backlash
  • High torque transmission
  • Compact design
  • Long fatigue life
CHS(H)-IV Harmonic Gearbox

GB Harmonic Drive Gearbox

Lower noise, higher design freedom, high stability, high precision, big torque, long life, high speed ratio, small size, zero backlash.

  • High precision (≤1 arcmin)
  • Low noise operation
  • High speed reduction ratio
  • Compact and lightweight
CHS-IV Series

CHS-IV Series Harmonic Drive

Advanced fourth-generation design with enhanced efficiency and thermal stability for continuous-duty applications.

  • Improved heat dissipation
  • Higher input speeds
  • Optimized flexspline geometry
  • Corrosion-resistant coating
CHS(H)-II High-Torque

CHS(H)-II High-Torque Drive

Designed for heavy-duty applications requiring maximum torque output with minimal size and weight.

  • High torque density
  • Robust housing
  • Sealed for harsh environments
  • Extended service intervals
CHS-II Standard Series

CHS-II Standard Harmonic Drive

Reliable and cost-effective solution for general automation and industrial robotics applications.

  • Balanced performance
  • Easy installation
  • Wide compatibility
  • Proven reliability
CHD Actuators

CHD Hollow Actuators

Hollow structure, high precision actuators with small volume, high transfer efficiency, and large output torque.

  • Hollow shaft for cabling
  • Integrated encoder options
  • High efficiency (>90%)
  • Compact and modular
Custom Solutions

Custom Harmonic Drives

Tailored designs for unique applications in aerospace, defense, and medical equipment.

  • Custom ratios and sizes
  • Special materials (e.g., titanium)
  • Hermetic sealing
  • High-vacuum compatibility
Accessories

Mounting Kits & Accessories

Complete installation kits, couplings, brackets, and alignment tools for seamless integration.

  • Motor mounting flanges
  • Shaft couplings
  • Alignment tools
  • Seals and lubricants

Why Choose CHD®?

Our harmonic drives are engineered for performance, durability, and precision. Discover the key advantages that set CHD® apart.

>5000h

Long Life

Engineered for extended operational life with minimal maintenance.

≤1′

High Precision

Angular backlash as low as 1 arc minute for exact positioning.

-30°C to 100°C

Wide Temp Range

Operates reliably in extreme environments.

Up to 160:1

High Ratio

Achieve high reduction ratios in a single stage.

Applications

CHD® harmonic drives are trusted in mission-critical systems across industries demanding precision, reliability, and compact design.

Robotics & Automation

Used in robotic arms, CNC machines, and automated assembly lines.

Aerospace

Actuators for flight control surfaces, satellite positioning, and UAVs.

Defense & Security

Turrets, surveillance systems, and mobile robotics.

Medical Equipment

Surgical robots, imaging systems, and rehabilitation devices.

Contact CHD®

For technical support, sales inquiries, or product specifications, visit the official website to get in touch.

Contact Information

Phone: +86-21-20965251

Fax: +86-21-33250281

Email: [email protected]

Website: chinaharmonicdrive.com

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