The compact design of these units allow their use with 1m tools in very cramped pits and in round shafts with a minimum diameter of 2.1m. The machines can be extended using extension frames to a variety of lengths in order to deal with longer tools and pipes. Their installation range covers everything up to a maximum jacking length of approx. 80m and a final pipe diameter up to 1016mm and can be used in various ground conditions, depending on technique being used.
