A drag conveyor system, comprising: a tube; a traction element extending through said tube; a plurality of slugs (20, 20', 320) connected to the traction element, each of the slugs (20,20',320) including a slug flange; a disk (40, 40',140, 140', 140", 240, 340, 340', 440, 440', 440", 440"', 540) removably attached to each of the slugs, characterized in that the disk (40, 40', 140, 140', 140", 240, 340, 340', 440, 440', 440", 440"', 540) including first and second disk parts (42A,B; 42A',B'; 142A,B; 142A',B'; 242A,B; 342A,B; 342A',B'; 442A,B; 442A',B'; 442A",B"; 442A"',B"'; 542A,B) that are adapted to be placed around the traction element and the first and second disk parts are at least one of axially engagable with one another or a respective one of the slugs (20, 20', 320) so that each of the disks (40, 40', 140, 140', 140", 240, 340, 340', 440, 440', 440", 440"', 540) is located on the respective one of the slugs (20, 20', 320); a snap clip engaged to each of the slugs (20, 20', 320), the snap clip including a flange located on an opposite side of the disk (40, 40', 140, 140', 140", 240, 340, 340', 440, 440', 440", 440"', 540) from the slug flange (28, 328) that, together with the slug flange (28, 328), maintains the first and second disk parts (42A,B; 42A',B'; 142A,B; 142A',B'; 242A,B; 342A,B; 342A',B'; 442A,B; 442A',B'; 442A",B"'; 442A"',B"'; 542A,B) together and engaged with the slug (20, 20', 320) in a fixed position on the slug (20, 20', 320); and wherein at least one of the slugs (20, 20', 320) includes at least one disk alignment tab (26, 326, 327), and the disk (42A,B; 42A',B'; 142A,B; 142A',B'; 242A,B; 342A,B; 342A',B'; 442A,B; 442A',B'; 442A",B"; 442A"',B"'; 542A,B) includes at least one complementary recess (46, 349, 449, 549) adapted to be aligned with the disk alignment tab (26, 326, 327) to maintain the disk in a fixed orientation with respect to the slug (20, 20', 320). a tube; a traction element extending through said tube; a plurality of slugs (20, 20', 320) connected to the traction element, each of the slugs (20,20',320) including a slug flange; a disk (40, 40',140, 140', 140", 240, 340, 340', 440, 440', 440", 440"', 540) removably attached to each of the slugs, characterized in that the disk (40, 40', 140, 140', 140", 240, 340, 340', 440, 440', 440", 440"', 540) including first and second disk parts (42A,B; 42A',B'; 142A,B; 142A',B'; 242A,B; 342A,B; 342A',B'; 442A,B; 442A',B'; 442A",B"; 442A"',B"'; 542A,B) that are adapted to be placed around the traction element and the first and second disk parts are at least one of axially engagable with one another or a respective one of the slugs (20, 20', 320) so that each of the disks (40, 40', 140, 140', 140", 240, 340, 340', 440, 440', 440", 440"', 540) is located on the respective one of the slugs (20, 20', 320); a snap clip engaged to each of the slugs (20, 20', 320), the snap clip including a flange located on an opposite side of the disk (40, 40', 140, 140', 140", 240, 340, 340', 440, 440', 440", 440"', 540) from the slug flange (28, 328) that, together with the slug flange (28, 328), maintains the first and second disk parts (42A,B; 42A',B'; 142A,B; 142A',B'; 242A,B; 342A,B; 342A',B'; 442A,B; 442A',B'; 442A",B"'; 442A"',B"'; 542A,B) together and engaged with the slug (20, 20', 320) in a fixed position on the slug (20, 20', 320); and wherein at least one of the slugs (20, 20', 320) includes at least one disk alignment tab (26, 326, 327), and the disk (42A,B; 42A',B'; 142A,B; 142A',B'; 242A,B; 342A,B; 342A',B'; 442A,B; 442A',B'; 442A",B"; 442A"',B"'; 542A,B) includes at least one complementary recess (46, 349, 449, 549) adapted to be aligned with the disk alignment tab (26, 326, 327) to maintain the disk in a fixed orientation with respect to the slug (20, 20', 320).