A jetting head developed specifically for side gluing of book blocks – it applies a thin, precise bead of EVA hot melt adhesive to both sides of the book spine.

SideBead is a jetting head developed specifically for side gluing of book blocks. It applies a thin bead of EVA hot melt adhesive to both sides of the book spine – cleanly, precisely and repeatably for every book format.
Key benefits of the SideBead jetting head
- higher line efficiency thanks to less frequent maintenance and cleaning
- precise, clean application thanks to the precision jetting system
- flexible, quick format changes for different book lengths
- closed system with no contamination of downstream trimming equipment
It is a closed thin-bead application system with precise jetting technology. Contactless application protects both the binding itself and the downstream trimming equipment (triple-cut) from adhesive contamination – the result is higher line efficiency thanks to less frequent cleaning and maintenance. An adjustable holder allows optimal positioning and quick format changes.
SideBead is also suitable for retrofitting existing bookbinding lines – an open wheel-type side gluing unit can be replaced with the closed SideBead jetting system without modifying the rest of the machine. Alongside side gluing, Robatech also offers the SpineCoat coating head for gluing the book spine.
| Adhesive | EVA hot melt adhesive |
| Viscosity | 1,000–10,000 mPa·s |
| Book block length | 100–500 mm |
| Book block thickness | 2–80 mm |
| Output | max. 7,000 books/h |
| Application thickness | 1 mm bead |
SideBead is used for book spine gluing – in bookbinding and the production of perfect-bound paperback publications.

