
Hangzhou Donghua Chain Group Co., Ltd. manufactures standard and custom industrial chains for automotive, conveyor and engineering applications, backed by strong R&D and quality systems.
Hangzhou Donghua Chain Group Co., Ltd. is a large-scale chain manufacturer in China, specializing in both standard and special chains for demanding industrial transmission and conveying applications. Its portfolio covers automobile and drive chains, conveyor and engineering chains, traction and agricultural machinery chains, stainless steel chains, escalator chains, and chain wheels (sprockets).
Founded in November 1991, the group operates with multiple subsidiaries and provides supporting services to leading equipment manufacturers across a wide range of industries, including automobiles and motorcycles, agricultural machinery, petroleum, construction machinery, metallurgy, mining, logistics, food, packaging, and environmental protection.
With a global orientation, Donghua builds an R&D system centered in Hangzhou with overseas branches in Germany and Japan, aiming to connect R&D, manufacturing, and sales seamlessly. The company emphasizes detection capability, quality control, and digitization, and continues to invest in technology upgrades and new product development to deliver high-strength, precision chain solutions for domestic and overseas markets.
The “Donghua” brand has been registered in 63 countries, and the company reports that 70% of its products are exported to Europe, America, Japan, and Southeast Asia. It also cooperates with well-known enterprises such as Siemens and Bosch, and agricultural machinery leaders including Johndeer, NH and Claas.

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The group builds a global R&D system with its Hangzhou headquarters as the core, supported by overseas branches such as Germany and Japan, enabling close coordination between R&D, manufacturing, and sales.
Through the implementation of its quality assurance system, the company has established process-wide quality control focused on prevention, supported by documented management procedures and continuous improvement to enhance product consistency.
The company established a Wastewater Treatment Center to enable wastewater recovery and cycling, supporting its environmental management practices.
The company has the right to engage in foreign trade, passed process inspection by the Zhejiang Commodity Inspection Bureau in 2002, and became among the first enterprises to gain “Green Channel” qualification for commodity inspection.
Passed the auditing of the revised ISO 9001 Quality Assurance System.
Became one of the first to obtain ISO14000 Environmental Management System certification and gained “Green Channel” qualification of Zhejiang Province.
Passed the certification of the American Petroleum Institute (API).