The milling center to portal and fixed bed for high speed machinings ESAGON , currently represents the more advanced generation of tools machines. Entirely characterized by a projected structure resorting to the systems of optimization through calculation to finished elements, FEM, with the objective to get an extremely rigid and very dynamic configuration, has been conceived for answering to the widest and diversify applications of various customers and therefore can satisfy demands of machinings to 3, 4 and 5 axes.