The invention relates to a transportation roller way for sectional material processing, in particular to a hollow roll for a roller way. The hollow roll comprises a roll body (1), a driving side extremity piece (2), a driven side extremity piece (3), a driving side spindle head (6) and a driven side spindle head (8), wherein the driving side extremity piece (2) and the driven side extremity piece (3) are respectively located at two ends of the roll body (1) through grafting type coordination, and the roll body (1), the driving side extremity piece (2) and the driven side extremity piece (3) are detachably and fixedly connected into a whole; the grafting type coordination is formed by a plug (4) and a slot which are coordinated. The invention can realize the rapid maintenance of the roller way, improve the quality of the surface of a rolled piece, reduce the maintenance time, and increase the utilization ratio of a rolling production line and the yield of the sectional material. The replaced roll body is maintained offline and is not influenced by time and fields, which can ensure the quality of the maintained roll body and the surface thereof, thereby the roll consumption is reduced. The invention is suitable for various transportation roller ways.