Why choose us ?
1. Hangzhou Donghua Chain Group Co., Ltd established in 1991, we have 5 subsidiaries in china and also 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 20,000,000 meters;
3. we specialized in producing all kinds of standard chains and special chains, such as A or B series chains, roller chains, driving chains, conveyor chains, dragging chains, agricultural chains , steel pintle chains and so on;
4. we have obtained ISO9001, ISO14001, ISO16969, AAA and API certificates.
1. Technical parameters:
2.Production flow chart
1.incoming material
2.inspection
3.production of chain board (cold roll steel/punch/heat treatment/shot blasting/cleaning)
4.production of roller(burr wiping & smear/heat treatment/wiping grinding/cleaning)
5.production of quill(burr wiping & smear/centerless cylindrical grinding/heat treatment/shining)
6.production of shaft(cutting/chamfering/heat treatment/ centerless cylindrical grinding/cleaning)
7.assembling
8.final inspection
9.packing
3.Certificate
The company is specialized in producing all kinds of standard chains and special chains, E. G. A or B series chains, automobile chains, stainless steel chains, combine harvester chains, heavy-duty cranked link transmission chains, stereo garage chains and maintenance-free chains etc. In recent years, it invests the capital and depends on the improvement of technology to accelerate the step of new product development and the step of technology reform. It intends to produce high strength and precision chains in order to meet requirements of the domestic and overseas markets. We have enclosed our catalog, which introduces our company in detail and covers the main products we supply at present.
Should any of these items be of interest to you, please let us know. We will be happy to give you a quotation upon receipt of your detailed requirements.
We look forward to receiving your enquires soon.
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