Machine tool for the manufacture, processing or machining of a workpiece with • at least one tool which is moved relative to the workpiece during the processing or machining of the workpiece, • at least one pressure line circuit comprising at least one pump unit and at least one energy reservoir which is in flow connection with the pump unit via a pressure line and at which a pressure difference to the ambient pressure present in the energy reservoir can be tapped via a pressure supply line, wherein the pump unit comprises at least one mechanically driven pump member for sucking in or drawing off a medium and is in flow connection with the pressure line and wherein the compressed air is generated by the pump unit, wherein the pump member is mechanically coupled for this purpose directly or indirectly to a structural member of the machine tool which is moved with the machine tool during intended operation of the machine tool, so that the structural member moved by the machine tool drives the pump member, characterized in that the machine tool comprises its own compressed air generation for operating pneumatic consumers without a separate compressed air connection, wherein the pump unit is a compressor for building up a pneumatic overpressure which is capable of drawing in gaseous medium and forcing it into the pressure line in a compressed state, and the energy reservoir embodied as a pneumatic pressure accumulator is a pressure vessel with an increased internal pressure compared to the ambient pressure, and wherein a pressure supply line extends from the energy reservoir to a transfer point at which compressed air or negative pressure can be tapped via a suitable interface. • at least one tool which is moved relative to the workpiece during the processing or machining of the workpiece, • at least one pressure line circuit comprising at least one pump unit and at least one energy reservoir which is in flow connection with the pump unit via a pressure line and at which a pressure difference to the ambient pressure present in the energy reservoir can be tapped via a pressure supply line, wherein the pump unit comprises at least one mechanically driven pump member for sucking in or drawing off a medium and is in flow connection with the pressure line and wherein the compressed air is generated by the pump unit, wherein the pump member is mechanically coupled for this purpose directly or indirectly to a structural member of the machine tool which is moved with the machine tool during intended operation of the machine tool, so that the structural member moved by the machine tool drives the pump member, characterized in that the machine tool comprises its own compressed air generation for operating pneumatic consumers without a separate compressed air connection, wherein the pump unit is a compressor for building up a pneumatic overpressure which is capable of drawing in gaseous medium and forcing it into the pressure line in a compressed state, and the energy reservoir embodied as a pneumatic pressure accumulator is a pressure vessel with an increased internal pressure compared to the ambient pressure, and wherein a pressure supply line extends from the energy reservoir to a transfer point at which compressed air or negative pressure can be tapped via a suitable interface.