QDZH Transmission System Technology Corporation is an invisible champion enterprise in the field of chain transmission in China.
The company is committed to R&D and manufacturing of high-end chain transmission products. The company continues to make progress in core processes. By adopting precision chain plate stamping, strengthening surface treatment technology, vacuum quenching, surface metallizing and other technologies, the tensile strength, fatigue life and wear resistance life of chain system components have reached the international advanced and China's leading level.
With the breakthrough in independent research and development technology, QDZH has broken the foreign monopoly in the field of automobile chains one after another – the independently developed reinforced toothed chain for engines is the third enterprise in the world to succeed in research and development after the relevant companies in the United States and Japan; The precision sleeve chain for automotive diesel engine is the third manufacturer in the world that has successfully researched and developed, following Iwis of Germany and Borg Warner of the United States.
The continuous enhancement of technical capabilities has made QDZH dare to attack a higher goal – high-power marine engine chain.
The company has undertaken the national level related "strong industrial foundation" project. By analyzing the meshing transmission characteristics of the chain transmission principle of high-power marine engines, the company has established a product series, design and manufacturing technology suitable for the transmission chain of high-power marine engines, proposed and set the standard for the transmission chain of high-power marine engines, and realized the substitution of imported products.
By the end of 2021, QDZH had 180 patents, drafted and participated in the revision of 24 national and industrial standards, and one of them won the first prize of national standard innovation contribution.
The traditional competitive business of the company is chains for vehicles, mainly motorcycle chains.
The 2021 annual report shows that the vehicle chain accounts for more than half of the company's total revenue, and its customers include well-known automobile enterprises such as Jiangling Automobile, Honda, Suzuki, Yamaha, and motorcycle enterprises.
In the field of commercial vehicle and agricultural machinery chain, the company has also been working hard for many years to provide relevant agricultural machinery chain system products for well-known agricultural machinery enterprises at home and abroad, such as Knorr Bremse of Germany, CLAAS KGaA mbH of Germany, John Deere, Weichai Lovol Heavy Industry, Kubota, Jiangsu World…