HZDH Chain Group Co., Ltd. was established in November 1991, and now owns 4 wholly-owned subsidiaries including Hangzhou Ziqiang Chain Transmission Co., Ltd., and is a professional manufacturing company that includes a variety of transmission products such as chain, sprocket and gear. For many years, it has become a national top 500 private enterprise. The group company has a registered capital of 160 million yuan, a total area of more than 400 acres, a total construction area of 250,000 square meters, more than 3,000 sets of equipment, and an annual production capacity of more than 30 million meters. Chairman unit of China Mechanical General Parts Industry Association Chain Drive Branch.
With its strong strength, HZDH Group acquired Hangzhou Shield Chain Transmission Co., Ltd. and Jiangsu Changzhou Dongfeng Agricultural Machinery Group Co., Ltd. in 2003, Jiangsu Xinghua Gear Co., Ltd. in 2007, German century-old chain company KOBO in 2009, and Japan shares in 2010. EK company. In 2009, sales companies were established in Germany, the Netherlands, the United States, the United Kingdom, and Thailand.
Products
Drive Chain
Drive chain is one of the most widely used and popular products in the market. It continues to innovate and develop solutions suitable for various occasions, such as motorcycle chains, high-strength roller chains, galvanized chains, nickel-plated chains, Dacromet plates, non-lubricated chains, and petroleum chains. HZDH can provide a wide range of standard accessories, and can develop suitable accessories for the chain to meet the various needs of customers.
Conveyor Chain
Rich design experience, modern manufacturing and professionalism in developing suitable products for specific customers and meeting various market challenges have enabled HZDH Conveyor Chain to be used in various engineering fields, such as escalator chains, double-speed chains, palm oil chains, sugar Machine chain, paver chain, oven chain, bulk material conveying chain, etc.
It uses high-quality materials, has strong and accurate heat treatment capabilities and excellent assembly methods to ensure that Donghua conveyor chains meet the strong and efficient needs of modern society.
HZDH has factory standard products that conform to ISO, DIN, ANSI, BS and specially developed for customers.
Stainless Steel Chain
Stainless steel chains are particularly suitable for areas where corrosion resistance, cleaning or certain chemical requirements are required, as well as high and low temperature occasions.
Austenitic stainless steel chain series, such as 304 and 316 and 316L and other materials have excellent corrosion resistance, such as acid, alkali and high and low temperature occasions of -40 ° ~ 600 °. In comparison, 316L has better magnetic resistance, adaptability to severe temperatures, and chemical resistance.
Martensitic stainless steel chain series, such as 2Cr13, not only have appropriate corrosion resistance, but also have the same strength as carbon steel with the same carbon content.
HZDH now has three major brands: "DH", "ZQ" and "Shield". The trademark "DH" has been registered in more than 70 countries and regions including the United States, Europe and Japan. Recognized as a well-known trademark in China; "Ziqiang" brand chain is a famous brand in Zhejiang Province and a famous trademark in Zhejiang Province. The company mainly produces standard and non-standard chains of various specifications, such as conveyor chains, stainless steel chains, agricultural machinery chains, etc., and its sales network covers the whole country. More than 50% of the company's products are sold overseas, including Europe and the United States, Japan, Southeast Asia and other countries and regions. HZDH Chain can be seen in many world-class companies, such as the supply of chains for companies such as Jandil, New Holland, Krass, Kubota, Yanmar and others.
HZDH has a strong technical force, and more than 400 technicians have developed various special, high-precision, high-strength chain products on the platform of the provincial-level technology center, Donghua academician workstation, and HZDH postdoctoral research workstation established within the company to implement automotive The key component mold plan and the national 863 plan project have so far developed more than 8,000 varieties, more than 10,000 specifications of chains, and 52 effective independent patents of various types. New products developed include aviation chains, various agricultural machinery chains, metallurgical chains, escalator chains, high-speed toothed chains, automotive engine timing chains, maintenance-free chains and other series of high-tech and high-quality chains. The moving box Hava type high-speed toothed chain and aviation chain have filled the domestic gap, and the technology has reached the international level, replacing the import. Donghua Group has been the sole enterprise representative in China's chain industry for many years. It has participated in the formulation and modification of ISO / TC100 international chain standards. Materials Research Institute, Wuhan Material Protection Research Institute and other well-known domestic universities and research institutes have established a solid cooperative relationship, and cooperated with the National Chain Transmission Research Institute to establish China's first automotive chain research institute.
HZDH Group has advanced equipment and has high-precision CNC equipment such as slow wire cutting machines, coordinate grinders, and EDM to ensure that the mold processing reaches the first-class precision level; the advanced, efficient and environmentally friendly continuous acid continuous rolling line is the largest in the Chinese chain industry Raw material conversion equipment. The company has also established a complete quality management system, equipped with advanced and complete testing and testing equipment, and has passed ISO9002 certification, ISO9001 certification, API certification, ISO / TS16949 certification, ISO10012 certification successively since 1996. In 2008, it won the title of "Export Inspection-exempt Enterprise". Lean manufacturing in production, make full use of various advanced processes and technologies, from material selection, restructuring to part manufacturing, from heat treatment of parts to automatic assembly of the chain; from quality control to product testing and testing; from order processing to after-sales service, each In every process, every link, every performance, Donghua requires meticulousness and thoroughness.
HZDH attaches great importance to environmental protection and energy conservation and consumption reduction. The entire process from product design to finished product reflects environmental protection and energy saving. In 2002, HZDH first passed the ISO14001 environmental management system certification in the industry, and then passed the clean production and circular economy audits, and won the title of "Zhejiang Green Enterprise".