China Harmonic Drive (CHD) is a brand of Harmonic driver gear products in China trans-tech Co., Ltd (CTT), which was established in Hong Kong and had a branch in Shanghai. CTT is a technical enterprise with development and innovation as its leading role.

CHD was built for gathering technical of harmonic drive technology in China to support widely usage of world, which is engaged in research, design and production of precise harmonic drive device. With 30000m2 mill of production, CHD has R&D center, production & testing equipment. All the details can be controlled by production link, as the parts were made in our mill totally, which promised stable quality and capacity to support customers.

For supporting China Automation process and worldwide cooperation in INDUSTRIE 4.0, Our Harmonic gear reducer aspires to control tolerance and precise of robots and automatic machines. With high stability, high precision, big torque, high life, big speed ratio, small size, our products has widely used in robots, aerospace, numerical control machines, semiconductor processing machines and precise mechanical drive control, especially be in robots industry of special requirement.

Professional in supporting for customers of automatic and machining is our aim. We welcome an opportunity to speak with you and show you first hand why CHD products would be a wise choice for your company's future success.

Our staff of sales and technical support is available to help you in selecting the right protection for your application as well as to provide you with samples of our products for evaluation. At CTT, we are committed to providing the highest level of customer service, competitive pricing, speedy delivery and a comprehensive, cutting-edge product offering. Our ultimate goal is your satisfaction.

CTT would like to integrate all advantages of competitors to supply better service to customers.