PURPOSE: To improve the productivity of the pipe for the heat roller by moving the pipe of long size intermittently, drawing the midway of the long size pipe in the stopped state of the long size pipe, forming the small and short part, and cutting the proper position at the small and short part.

CONSTITUTION: At the time of rotating the backer 14 and the die 18 by deforming the intermediate material 16 interposed between the backer 14 and the die 18, the moving quantity of the die 18 which is moved with the centrifugal force is much more than that of the backer 14. So the small diameter part 38 can be formed at the midway of the long pipe, not only at the top end of the pipe 20. Because the small diameter part 38 can be formed in midway of the length of the pipe 20, the length of the tapered pat can be shortened. As a result, the small diameter part 38 of required shape can be formed. Therefore, by moving the pipe of long size formed with the small diameter part 38 intermittetly, cutting the small diameter part successively, the pipe for the heat roller can be manufactured continuously and the productivity can be improved.