In many applications stability and transportation are limiting factors of a machine’s design. Therefore as a solution Kocurek Excavators Ltd are able to offer a number of undercarriage modifications from simple extending box track frames, hydraulically assisted undercarriages to fully hydraulically extending and retracting undercarriages. With the fully hydraulically extending and retracting undercarriage option it is also common practice to extend track frames by a number of bottom rollers to achieve required stability.