The objective of the present invention is achieved by means of a row divider (1) applied to a sugar cane harvester (100). Said device (1) comprises at least one helicoidal lift (2) connected to an engine. Said helicoidal lift (2) has a conical shape geometry of variable cross section around an imaginary central axis (102) and comprises a first segment (3) and a second segment (4). The first segment (3) establishes a first generatrix (5) which defines an angle a to the central axis (102) and comprises a first screw thread (6) in its outer surface. The second segment (4) establishes a second generatrix (7) which defines an angle to the central axis (102) so that has a greater value than a. Said second segment (4) comprises a second screw thread (8) in its surface which is oriented in the opposite direction of the first screw thread (6). Said device provides a higher peripheral speed in the last stage of separation and direction of the sugar cane cut by the blades of a sugar cane harvester (100) and lifted by the first segment (3) of the helicoidal lift (2) of a row divider (1). This aims to facilitate and expedite the work of the harvester (100) since it prevents the accumulation of material improperly positioned at the mouth of the harvester (100).
