A device for producing container blanks from a material web having a plurality of tools supported by a rotary tool holder. The tool holder is on rotation arranged to move each tool along a working path along which each tool is engageable with the material web for joining of opposite wall portions of the material web along connecting portions, and a return path along which each tool is disengageable from the material web. Each tool is arranged to be moved together with the material web when the tool is moved along the working path and the tool holder acts as a deflector for the material web when this moves together with the respective tools along the working path. The present invention also relates to a corresponding method for producing container blanks.