NINGBO ZHENHAI Reducer & Variator Manufacturing Co., Ltd

Founded in 2000, with well over 20 years of frontline experience, Ningbo Zhenhai Reducer & Variator Manufacturing Co., Ltd is recognised nationally as a premier resource for extremely reliable, high-performance power transmission components.

GX, G800 series planetary gear reducer, SPT, ZH series cone/ring disc reduction gearbox, UD series high-power planetary cone disc reduction gearbox are all independently developed by the company and pioneered in China.

We offer the industry's most comprehensive products array featuring more than 50 standard products combined with the ability to custom engineer unique solutions when required. Product lines include standard enclosed gear drivers, custom speed reducers, and Centric brand overload clutches and torque limiters. 

The company has more than 20 national patents, drafts national industry standards, and edits the National Machine Design Manual.

ISO 9001 Certificate provides proof of our processes and systematic methodologies for approaching design, procurement, production, inspection and continuous improvement. This globally recognised ISO certification of quality is another way we add value to your machine design.

We are being awarded the Ningbo High-tech Enterprise, Ningbo Integrity Demonstration Enterprise, committee member of China General Machinery Industry Association (CGMA), associate chair of China Heavy Machinery Association (CHMA), member of National Reducer Standard Committee, chair of Ningbo Mechanical Engineering Society. 

The company attaches great importance to scientific research. We established an engineering technology research centre and an expert studio, partnership with first-tier Universities and research centres, including China Ordnance Research Institute, Harbin Institute of Technology, the University of Ningbo, Zhengzhou Institute of Machinery, China Heavy Machinery Research Institute.