The invention relates to a device for profile extrusion, consisting of at least three clamping arrangements (23, 24) disposed equidistantly around the perimeter of an extruded profile (6), wherein a clamping element (25) can be placed directly on the extruded profile (6). According to the invention the one clamping element (25) is mounted in each of the clamping arrangements (23, 24) and the clamping elements (25) can be moved radially with respect to the extrusion axis (9) by a drive mechanism (26), and each clamping arrangement (23) is connected to the adjacent clamping arrangement (24) by a coupling arrangement (28).