Tube Bending Machines of Schwarze-Robitec As one of the world's leading companies for the production and development of CNC controlled tube bending machines, we have more than 80 years experience in manufacturing and maintenance of tube and profile cold bending machines for tube diameters of 4mm - 420mm. In addition we were and are the leader in the further development of our industry. Mandrel Bending Machine with CNC-control Booster Bending Machine with CNC-control Tube Bending Measuring Systems Fully automatic solutions Complete system solutions Special bending equipment Consulting and Individualization.