Liberty Machinery makes a market in buying & selling used tube & pipe bending machines. CNC tube benders, CNC mandrel type tube benders, Compression tube bending machines, CNC compression tube bending machines. Common machines in our inventory are, Pines, Eaton Leonard, Chiyoda, Conrac , Adaptive Motion, Hines. Pines No.2 mandrel benders with a 3-1/2" capacity are presently in stock and ready to ship as well as Chiyoda, Adaptive Motion and Conrac tube benders.. Equipped with mandrel extractor and pressure die assist. B1804 Benders Pipe, Tube & Bar, B1835 Benders, pipe Tube & Bar CNC.