the cnc controlled mandrel bending machines of the tubotron line meet the highest demands on quality where design, performance and fabrication are concerned. they are the perfect solution for serial production as well as ......the cnc controlled mandrel bending machines of the tubotron line meet the highest demands on quality where design, performance and fabrication are concerned. they are the perfect solution for serial production as well as for flexible single production of tube and pipe bending parts. all functions are automated and the speed of all axes can be programmed free.