Since establishing Donghua in the UK in 2009, we’ve expanded our workshop facilities at our Midlands distribution centre to specialise in producing bespoke, in-house built Attachment chain. This investment has made Donghua one of the few chain manufacturers able to offer this level of technical capability directly in the UK.
Donghua owns two 100 tonne presses which are used to cut large pitch chains and rotary chains enabling us to fulfil growing customer demand for chain in specific cut lengths. One press is used to cut special length roller chain and the other is used to cut special length leaf chain.
The Pneumatic Press Riveter is used for riveting attachment or bespoke chain to customer’s desired configuration. Maintaining uniform and consistent assembly and riveting results, helps to increase the fatigue life of chain.
Our two 17 tonne hydraulic presses are used to cut to order bespoke special attachment chain which is available in both British and American standards.
Donghua Limited is proud to be the only chain manufacturer in the UK to have its own hot dip lubrication bath. Once produced, the attachment chain is dipped in a metal vat containing hot lubrication which penetrates into the bearing areas that standard lube spraying would not reach. As the chain cools, the surplus lube drains away leaving an oil deposit inside the chain providing ultimate lubrication properties – this initial lubrication is the most important a chain receives and helps significantly extend wear-life. The chain is then pre-loaded, measured and matched as necessary.
Used for accurate surface grinding of chain components and sprockets.
Two counterbalance forklift trucks are used in the extended warehouse and workshop.
Three state-of-the-art vertical Kardex storage shuttle units are installed, one of which holds half a tonne per tray. The three shuttle units provide a unique storage and retrieval system for small chain parts used within in-house chain assembly. The units contain multiple horizontal shelves that are retrieved when the operator selects the components to fulfil a customer order. Watch a video of the machines in use.
Our finished chain products are shrink wrapped providing a barrier against moisture, dust, dirt and tampering. Rounds of chain are inserted into a plastic wrap and a conveyor transports the product through a heat shrink tunnel for wrapping. Watch our shrink-wrapping machine in action.
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Whether you have a question about our products, services or prices, our UK team is ready to answer all your questions.
