Plasser Australia supplied John Holland with their Unimat 4S rail track tamping machine manufactured in their St Marys plant in NSW .
Plasser has purchased many DEUTZ engines in their larger ballast and tamping trains to drive the hydraulics.
The Unimat 4S is fitted with a BF8M1015CP EMR controlled engine that provides the drive for the train as well as the hydraulics for the tampering. The integration of the Plasser controls and the EMR have worked well together.
The machine has been in service since March 2006.