Cutting unit for the cutting of a substrate band for an aerosol-generating device and related cutting assembly

A cutting unit (1) for the cutting of a substrate band (2) for an aerosol-generating device, wherein the substrate band (2) has a longitudinally-extending axis (X) and wherein the cutting unit (1) comprises:

• feed means (3) for feeding the substrate band (2) along a feed direction (Y) parallel to the extension axis (X);
• and
• a cutting head (4) comprising a cutting edge (40) having a closed profile for cutting a substrate portion (20) from the substrate band (2), which cutting head (4) is movable in a movement direction (Z) transversal to the feed direction (Y) between a cutting position, in which it cuts the substrate portion (20), and a release position (A), in which it releases the substrate portion (20);
• wherein the cutting unit (1) comprises conveying means (5), which are arranged and shaped so as to receive the substrate portion (20) from the cutting head (4) when the cutting head (4) is in the release position (A), and convey the substrate portion (20) towards an output section (6).