Plasser&Theurer UNIMAT 09-4X4 4S Dynanic

At this machine Dynamic Track Stabiliser (DTS or DGS) is designed to apply controlled, accurate stabilising forces into the track durring tamping.
All track is subject to settling due to traffic loads. This settling occurs irregularly and in an uncontrolled manner, resulting in track deterioration. Dynamic track stabilisation is a combination of horizontal vibration and a vertical load.