A roll finishing machine, comprising: a heating device having a concave curved surface; a rotating roll that rotates to convey a washed object loaded from an inlet end of the concave curved surface while pressing the washed object against the concave curved surface, and to discharge the washed object from an outlet end of the concave curved surface; and a suction peeling device (103a, 104, 104a, 106) that peels the washed object, which is discharged from the outlet end of the concave curved surface, off the rotating roll, wherein: the suction peeling device (103a, 104, 104a, 106) comprises: a suction surface having a plurality of openings for sucking and peeling the washed object off the rotating roll; an exhaust unit that causes air to be sucked from the plurality of openings; and a ventilated conveying belt that travels on the suction surface and conveys the washed object peeled off the rotating roll; characterized in that the suction surface has a planar part facing to a roll surface of the rotating roll at a position in the vicinity of the outlet end of the concave curved surface, the position being located in a direction of an extension of the concave curved surface from the outlet end. a heating device having a concave curved surface; a rotating roll that rotates to convey a washed object loaded from an inlet end of the concave curved surface while pressing the washed object against the concave curved surface, and to discharge the washed object from an outlet end of the concave curved surface; and a suction peeling device (103a, 104, 104a, 106) that peels the washed object, which is discharged from the outlet end of the concave curved surface, off the rotating roll, wherein: the suction peeling device (103a, 104, 104a, 106) comprises: a suction surface having a plurality of openings for sucking and peeling the washed object off the rotating roll; an exhaust unit that causes air to be sucked from the plurality of openings; and a ventilated conveying belt that travels on the suction surface and conveys the washed object peeled off the rotating roll; characterized in that the suction surface has a planar part facing to a roll surface of the rotating roll at a position in the vicinity of the outlet end of the concave curved surface, the position being located in a direction of an extension of the concave curved surface from the outlet end. the suction peeling device (103a, 104, 104a, 106) comprises: a suction surface having a plurality of openings for sucking and peeling the washed object off the rotating roll; an exhaust unit that causes air to be sucked from the plurality of openings; and a ventilated conveying belt that travels on the suction surface and conveys the washed object peeled off the rotating roll; characterized in that a suction surface having a plurality of openings for sucking and peeling the washed object off the rotating roll; an exhaust unit that causes air to be sucked from the plurality of openings; and a ventilated conveying belt that travels on the suction surface and conveys the washed object peeled off the rotating roll; characterized in that the suction surface has a planar part facing to a roll surface of the rotating roll at a position in the vicinity of the outlet end of the concave curved surface, the position being located in a direction of an extension of the concave curved surface from the outlet end.