A portioning machine for cutting a strand shaped cutting material into slices (2a, b...) with advantageously identical volume, the portioning machine comprising: a) an upward protruding form tube revolver that is rotatable about a rotation axis and in which plural form tube openings (1a, b, c) are arranged that extend in a longitudinal direction of the form tube revolver and that are open at a top and at a bottom and that are configured to receive a cutting material, b) a longitudinal press plunger that is loadable in the longitudinal direction with a force and movable in the longitudinal direction at a circumferential position, the cutting position for penetrating the form tube (a) and longitudinally compressing and advancing the cutting material included therein in a forward direction towards a cutting side, c) a cutting device at a lower end of the form tube revolver, the cutting device including a blade that is driven to rotate about an axis parallel to the rotation axis of the form tube revolver, d) a transporting device for the cut off slices (2a, b...), e) an axial contact element for the cutting material which contact element is adjustable with respect to its distance from the form tube revolver on a side of the blade that is arranged opposite to the form tube, characterized in that f) the contact element is a contact plate which is driven to rotate together with the blade about the same axis and which includes a slice recess at least in a portion of the blade, g) an intermediary plate is arranged below a lowest revolver disc and a portion of the form tube revolver arranged there above, wherein the intermediary plate is rotatable independently from the form tube revolver about the rotation axis of the form tube revolver, wherein the intermediary plate includes an opening for the cutting material only in the cutting position, wherein the opening has at least the same size as a largest form tube opening (1 a..). a) an upward protruding form tube revolver that is rotatable about a rotation axis and in which plural form tube openings (1a, b, c) are arranged that extend in a longitudinal direction of the form tube revolver and that are open at a top and at a bottom and that are configured to receive a cutting material, b) a longitudinal press plunger that is loadable in the longitudinal direction with a force and movable in the longitudinal direction at a circumferential position, the cutting position for penetrating the form tube (a) and longitudinally compressing and advancing the cutting material included therein in a forward direction towards a cutting side, c) a cutting device at a lower end of the form tube revolver, the cutting device including a blade that is driven to rotate about an axis parallel to the rotation axis of the form tube revolver, d) a transporting device for the cut off slices (2a, b...), e) an axial contact element for the cutting material which contact element is adjustable with respect to its distance from the form tube revolver on a side of the blade that is arranged opposite to the form tube, f) the contact element is a contact plate which is driven to rotate together with the blade about the same axis and which includes a slice recess at least in a portion of the blade, g) an intermediary plate is arranged below a lowest revolver disc and a portion of the form tube revolver arranged there above, wherein the intermediary plate is rotatable independently from the form tube revolver about the rotation axis of the form tube revolver, wherein the intermediary plate includes an opening for the cutting material only in the cutting position, wherein the opening has at least the same size as a largest form tube opening (1 a..).