Basic Info.

Model NO.	All kinds
Surface Treatment	Electroplating
Feature	Heat Resistant
Chain Size	1/2"*11/128"
Structure	Roller Chain
Color	Solid Color
Tensile Strength	1.80kn~3750kn
Made Style	Manufacture and OEM
Brand Name	Donghua
Transport Package	wooden case/container
Specification	Standard Chains and Special Chains
Trademark	DONGHUA
Origin	China
HS Code	3301968013
Production Capacity	5,000,000 PCS/Month

Product Description

ISO16949: 2009 Approved Industrial Chain

Why Choose Us?

Hangzhou Donghua Chain Group Co., Ltd was established in 1991 and has 5 subsidiaries in China and 6 international subsidiaries, demonstrating global reach and influence.
With a total area of 200,100 square meters and over 1,800 advanced machines, the company produces more than 20 million meters annually, setting industry benchmarks.
Specializing in standard and special chains including A or B series, with a wide range of applications such as driving, conveyor, hoisting, and agricultural chains, supported by sprockets, gears, and wheels.
Committed to quality, certified with ISO9001, ISO14001, ISO16969, AAA, and API, reflecting excellence.
Partnering with renowned companies like JOHNDEERE, NEW HOLLAND, CLAAS, HONDA, KUBOTA, YANMAR, showcasing global trust and reputation.

1. Industrial Chain Parts

ISO16949: 2009 Approved Professional factory made industrial conveyor standard chain

2. Production Flow Chart

Incoming material
Inspection
Precision crafting of chain board using cold roll steel, punching, heat treatment, shot blasting, and cleaning
Crafting of roller with burr wiping, smearing, heat treatment, wiping, grinding, and cleaning
Advanced production of quill featuring burr wiping, smearing, centerless cylindrical grinding, heat treatment, and shining for superior finish
Precision production of shaft involving cutting, chamfering, heat treatment, centerless cylindrical grinding, and cleaning
Assembling
Final inspection
Packing

3. Certificate

4. Company Information

Hangzhou Donghua Chain Group Co., Ltd was founded in 1991 and now operates five wholly owned subsidiaries in Jiangsu and Hangzhou. As a professional manufacturer of chains, sprockets, tooth gears, and power transmission products, we are proud of our DONGHUA and ZIQIANG brands.

The brand is registered in over 70 countries, including America, Europe, and Japan, and partners with global giants like JOHNDEERE, NEW HOLLAND, CLAAS, HONDA, KUBOTA, and YANMAR.

Our commitment to innovation includes provincial technical centers, academicians' working stations, post-doctoral experiment stations, and national programs. With over 100 engineers and technicians, we develop high precision and high strength products.

We prioritize environmental protection and energy-saving, achieving ISO14001 certification and earning the title of 'Zhejiang Green Enterprise.'