Abstract: An apparatus is specified for continuous corrugation of a metallic tube (1) which apparatus has a tool holder (13), which can rotate about the initially smooth tube and has a tool (14) which is mounted eccentrically with respect to the tube and forces a corrugation into the tube during operation of the apparatus, which corrugation runs transversely with respect to the longitudinal direction of the tube. A first hollow shaft (12) is attached to the tool holder (13), projects in the pulling-off direction from it, surrounds the tube after the corrugation process and can be rotated about its axis with the tool holder (13) by an electric motor. A second hollow shaft (16) is arranged at a distance from the first hollow shaft (12) and coaxially about the end, facing away from the tool holder (13), of the first hollow shaft (12), which second hollow shaft (16) is mounted such that it can rotate about its axis and can be driven by the electric motor.

Abstract: An apparatus is specified for continuous corrugation of a metallic tube (1) which apparatus has a tool holder (13), which can rotate about the initially smooth tube and has a tool (14) which is mounted eccentrically with respect to the tube and forces a corrugation into the tube during operation of the apparatus, which corrugation runs transversely with respect to the longitudinal direction of the tube. A first hollow shaft (12) is attached to the tool holder (13), projects in the pulling-off direction from it, surrounds the tube after the corrugation process and can be rotated about its axis with the tool holder (13) by an electric motor. A second hollow shaft (16) is arranged at a distance from the first hollow shaft (12) and coaxially about the end, facing away from the tool holder (13), of the first hollow shaft (12), which second hollow shaft (16) is mounted such that it can rotate about its axis and can be driven by the electric motor.