Silent Chain HV6 HV8

Silent Chain HV6 HV8

High speed silent chain (Hy-Vo chain) is an ideal choice for the drive of medium and high speed of over 3000 rotation per minute and the frequency of 50~6000 horses, which requires a compact design.

Hy-vo chain is a kind of high precision silent chain, with both stability like strap and compaction, economicality and long life like chain. It is characterized of reduction of wear and tear and realization of pitch elongation through rolling effect between the pin of hinge and the segmental bush, resulting in the effective increase of ability of transferring power and decrease of harm from chordal effect. Its plates have more carrying ability since it has got shot peening and prestress treatment. With the power 3 times of that of silent chain and higher speed scope, the Hy-vo chain has increasing working power in high speed zone.

While that of the roller chains would suddenly decrease. As a result, the Hy-vo chain has incontestable and outstanding advantage in many circumstances, suitable for power transmission of all high speed drive machines, such as diesel engine.

Why Choose Us ?

1. Hangzhou Donghua Chain Group Co., Ltd established in 1991, we have 5 subsidiaries in china and have 6 subsidiaries abroad;
2. we covering a production area of 200,100 square meters, have more than 1,800 sets of advanced equipment and over 3,100 highly skilled employees, the annual production capacity has exceeded 20,000,000meters;
3. we specialized in producing all kinds of standard chains and special chains, such as A or B series chains, driving chains, conveyor chains, dragging chains, agricultural chains and so on;
4. we have obtained ISO9001, ISO14001, ISO16969, AAA and API certificates.

5. Our partners among world top enterprises, such as JOHNDEERE, NEW HOLLAND, CLAAS, HONDA, KUBOTA etc.

Technical parameters

Hangzhou Donghua Chain Group Co., Ltd was founded in 1 9 9 1, and now it has five wholly owned subsidiaries, one in Jiangsu province, other four in Hangzhou, Zhejiang province, it is a professional manufacturer of chains, sprockets, tooth gears and various power transmission products.

The group has DONGHUA, ZIQIANG brands, is focused on producing all variety of standard roller chains and special chains, such as conveyor chain, stainless steel chain, agricultural chain. With Donghua brand registered in more than 70 countries like America, Europe, Japan, it is building long term cooperation with these world top enterprises, such as JOHNDEERE, NEW HOLLAND, CLAAS, HONDA, KUBOTA, YANMAR.  

There is a technical center of province level, Donghua academician working station, experiment station for Donghua post doctors, and national hundreds of program set up in Donghua group. With these platforms and strong technical ability, the more than hundreds of Engineers and technicians have developed all variety of special high precise and high strength products, conducted mold programs for key components in the car and national industry revitalizing program. 

Great attention has been paid on environmental protection and energy saving. The product well displays environmental protection and energy saving. In the year of 2 0 0 0, Donghua took the lead in gaining I S O 1 4 0 0 1 environment management certificate and thereafter passed the inspection of clean production and recycling economy, winning the title of "Zhejiang Green Enterprise".

"We are always serving our customers with our best products." 

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