Britain's infrastructure manager Network Rail (NR) has introduced into operation the first two of three 150m (492-foot) long grinding trains, which Loram and Colas Rail are supplying under a £36-million (US$48.6-million) contract.
The trains will replace several older grinding machines that are coming to the end of their life. The new grinding trains can remove metal from the rail head at up to 25km/h (17.4 mph) and can travel between work sites at speeds of up to 110km/h (68.4 mph).
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