Abstract: A device for applying a closing strip, which device comprises for this purpose a box-like housing profiled with a channel (6). The housing herein comprises a first storage space for adhesive tape, first through-feed means for feeding a strip of adhesive tape from said space to the channel, and a rotor with fins for guiding the adhesive tape into the channel with the sticking side facing outward. The housing further comprises a second storage space for tape-like material, second through-feed means for feeding a strip of tape-like material from the second drum-shaped space to the channel. Means are present in the channel for forming a closing strip tape from the supplied strip of adhesive tape and the tape-like material, in addition to cutting means for severing the closing strip. The second drum-shaped space is partially enclosed by removably embodied closing means (35).