A cutting machine for cutting profiled elements, comprising: a reference plane, structured for supporting a profiled element; a circular blade, rotating about a rotation axis and movable along a sliding direction perpendicular to the rotation axis; adjusting means predisposed for varying the distance between the centre of the circular blade and the reference plane, wherein the distance is measured along a straight line perpendicular to the reference plane; a carriage, movable along the sliding direction; an arm, which connects the circular blade to the carriage and is associated to the carriage and which can oscillate about an adjustment axis perpendicular to the sliding direction and parallel to the reference plane; wherein the adjusting means are predisposed for varying the angular position of the arm; wherein the arm is movable between a lower position, in which the centre of the circular blade is at a shorter distance from the reference plane, and an upper position, in which the centre of the circular blade is at a greater distance from the reference plane; characterised in that: in the upper position, an end portion of the arm to which the circular blade is associated has an orientation that is parallel to the sliding direction; and in that the cutting machine further comprises a barrier having a slot, structured for enabling passage of the circular blade, and a window, structured for enabling passage of an end portion of the arm to which the circular blade is associated. a reference plane, structured for supporting a profiled element; a circular blade, rotating about a rotation axis and movable along a sliding direction perpendicular to the rotation axis; adjusting means predisposed for varying the distance between the centre of the circular blade and the reference plane, wherein the distance is measured along a straight line perpendicular to the reference plane; a carriage, movable along the sliding direction; an arm, which connects the circular blade to the carriage and is associated to the carriage and which can oscillate about an adjustment axis perpendicular to the sliding direction and parallel to the reference plane; wherein the adjusting means are predisposed for varying the angular position of the arm; wherein the arm is movable between a lower position, in which the centre of the circular blade is at a shorter distance from the reference plane, and an upper position, in which the centre of the circular blade is at a greater distance from the reference plane; characterised in that: in the upper position, an end portion of the arm to which the circular blade is associated has an orientation that is parallel to the sliding direction; and in that the cutting machine further comprises a barrier having a slot, structured for enabling passage of the circular blade, and a window, structured for enabling passage of an end portion of the arm to which the circular blade is associated. in the upper position, an end portion of the arm to which the circular blade is associated has an orientation that is parallel to the sliding direction; and in that the cutting machine further comprises a barrier having a slot, structured for enabling passage of the circular blade, and a window, structured for enabling passage of an end portion of the arm to which the circular blade is associated.