Powder spray painted steel-made structure for higher resistance to corrosion. The machine is composed by: manual entry ,complete of support structure for corners and joints of different measures. Recovery of the aluminium discards system, manual command on the machine, different geometric forms with exception of curve forms. Predisposition for bending of four side with connection on central side or bending of three side with connection on angle. All control circuits which are in contact with the operator are in security low voltage. Safety protections against access to the dangerous parts of the machine according to the European norms.