Apparatus for cutting at least one sheet of material, comprising: - a cutting chamber equipped with a loading inlet and with an unloading outlet , said cutting chamber being configured to house at least one portion of the sheet to be cut; - cutting means adapted to cut the sheet in the cutting chamber ; - a control unit (C) configured to control said apparatus ; and - a conveyor belt adapted to feed the sheet into the cutting chamber along a forward direction (Y), characterized in that it comprises a closure element at least at the unloading outlet of said cutting chamber , said closure element being movable between an open position, in which at least one portion thereof is at a first distance from the surface of the sheet or from the surface of the conveyor belt allowing access to the cutting chamber , and a closed position, in which said portion is at a second distance from the surface of the sheet or from the surface of the conveyor belt , said second distance being less than said first distance, said distances being measured along a direction which is orthogonal to the surface of the sheet or to the surface of the conveyor belt , wherein said cutting means comprise cutting heads mounted on movable carriages (8"), the orientation of said cutting heads being invertible, making said apparatus symmetrical. - a cutting chamber equipped with a loading inlet and with an unloading outlet , said cutting chamber being configured to house at least one portion of the sheet to be cut; - cutting means adapted to cut the sheet in the cutting chamber ; - a control unit (C) configured to control said apparatus ; and - a conveyor belt adapted to feed the sheet into the cutting chamber along a forward direction (Y), characterized in that it comprises a closure element at least at the unloading outlet of said cutting chamber , said closure element being movable between an open position, in which at least one portion thereof is at a first distance from the surface of the sheet or from the surface of the conveyor belt allowing access to the cutting chamber , and a closed position, in which said portion is at a second distance from the surface of the sheet or from the surface of the conveyor belt , said second distance being less than said first distance, said distances being measured along a direction which is orthogonal to the surface of the sheet or to the surface of the conveyor belt , wherein said cutting means comprise cutting heads mounted on movable carriages (8"), the orientation of said cutting heads being invertible, making said apparatus symmetrical. characterized in that it comprises a closure element at least at the unloading outlet of said cutting chamber , said closure element being movable between an open position, in which at least one portion thereof is at a first distance from the surface of the sheet or from the surface of the conveyor belt allowing access to the cutting chamber , and a closed position, in which said portion is at a second distance from the surface of the sheet or from the surface of the conveyor belt , said second distance being less than said first distance, said distances being measured along a direction which is orthogonal to the surface of the sheet or to the surface of the conveyor belt , wherein said cutting means comprise cutting heads mounted on movable carriages (8"), the orientation of said cutting heads being invertible, making said apparatus symmetrical. <EOS>