Harsco Rail, a division of US-based Harsco, has received new orders from four Chinese rail companies, as well as an order in North America.
Under the Chinese deal, the company will be responsible for the supply of 20-stone rail grinders to metro rail operators in four Chinese cities, all of which are in the process of expanding their networks.
Harsco has not disclosed the details of its customers or the value of the contracts.
The grinders will be used to contour and smooth rail surfaces in order to increase train speeds, improve fuel efficiency and support safety.
Harsco Rail produces two families of grinders: switch and crossing / transit grinders, and production grinders.
The machines, which are all planned for production in 2013, are expected to be delivered in the second half of 2013.
The company has also received a new service order from an unnamed North American firm for a two-year track renewal project, which is scheduled to commence in March 2013 and continue until mid-2014.
The deal will see Harsco Rail upgrade around 20 miles of track and replace over 45,000 ties to reduce disruption to heavily-used mainlines.