With claims that their new X3 Roller Chain lasts three times longer than similar competitor chain, Donghua Limited tells us about their latest innovation.

X3 is a new high performance Roller Chain which forms part of the Donghua Chain Group’s Premium range. It is aimed at sectors that use high demand drives such as Timber, Waste & Recycling and Mining & Quarrying.

The new chain is designed and manufactured by the Hangzhou Donghua Chain Group on a purpose-built production line which uses new production techniques and new surface treatments.

Bob Wellsbury, managing director at Donghua Limited, has been at the helm of the UK subsidiary of the world-wide chain manufacturer since 2009. Their head office in Wolverhampton boasts a busy sales office, a 25,000 sq ft warehouse, testing laboratory and technical workshop. He explains why this chain is so unique.

“Our Roller Chain is categorised into three ranges: Standard, Solution and Premium. We launched a new Solution chain in 2021 called EXL Chain which has proved popular with our distribution market, and this year we launch the first chain in our Premium range – X3.”

“The X3 Chain is designed with a unique pin coating, optimised plate geometry and high precision stamping. Together, these elements deliver unique performance, offering end-users a first-class chain and unbeatable value for money.”

New technologies make higher precision stamping possible, maximising the quality of the X3 Chain. The high plate load limit is ensured by selecting high performance material and subjecting it to isothermal heat treatment, using calibrated pin and bushing holes, and having an improved press fit between the pins and plates to guarantee maximum fatigue strength. The use of new hardening technologies and special anti-friction coating technology on the pin surface minimises the friction coefficient between the pin and the bushing, resulting in extreme wear resistance.

The X3 Chain has been tested against similar competitor chain and has a longer service life, higher fatigue resistance and greater precision.

The new X3 Chain is available in sizes in 06B to 24B ex-stock from Donghua Limited and is distributed to their growing UK network of Approved Product Partners and Stockists.

For more information about X3 Chain email: or call 01902 866 200.

To find your nearest stockist of X3 Chain visit:

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