Chain measure

Donghua has built a new chain length measuring machine at its UK distribution centre's workshop. It measures to within 10µm/m (a human hair is 80 to 100µm).

The equipment can also pre-load (pre-stretch) chain. This means Donghua's attachment chain is ready and easy to fit from the box. Where precise positioning of more than two chains used in parallel is required, the chains need to be matched within a close tolerance of each other.

Donghua's new equipment makes it possible to match chains from 3/8 to 2in pitch in British and American standards to 5m. For longer lengths, chains can be supplied matched and tagged ready to be fitted in sequence.