1. A label applicator for applying a label to a cylindrical segment of an object, the applicator comprising: a roller for rotating the segment of the object; a label handler, wherein a label extending from the label handler contacts the segment of the object rotated by the roller; a labeling zone; and a motorized arm for moving the roller into contact with the segment of the object, wherein the roller contacts the segment of the object after the object enters the labeling zone, and wherein a single motor moves the motorized arm and rotates the roller consecutively, such that when the roller contacts the segment, the arm stops moving and the roller begins to rotate.