| 1. Folder-gluer with cold-glue nozzle system | Water-based adhesive dispensed as controlled lines or dots onto defined glue flaps. | Folding cartons and other repeatable carton styles with regular glue seams. | Well suited to continuous production; nozzle placement can be adjusted to the carton layout. | Adhesive viscosity, drying conditions, nozzle cleanliness, and board surface affect bonding. |
| 2. Folder-gluer with hot-melt nozzle system | Heated thermoplastic adhesive applied in beads, lines, or selected dots; it sets as it cools. | Cartons needing a fast initial bond, including some heavier or coated paperboard jobs. | Rapid setting can support short compression and handling intervals. | Requires heated equipment and attention to temperature, adhesive char, and operator safety. |
| 3. Dual cold-glue and hot-melt system | Separate dispensing circuits apply water-based glue and hot melt to designated areas. | Mixed carton jobs where different seams or substrates call for different bonding behavior. | Offers flexibility to combine a rapid tack with a longer-term bond where the design requires it. | More complex setup and maintenance; adhesive placement and compatibility must be validated. |
| 4. Multi-channel programmable glue applicator | Multiple electronically controlled valves deposit timed lines or dots at different positions. | Cartons with several glue points, varied flap layouts, or frequently changed patterns. | Pattern control can reduce unnecessary adhesive use when correctly set up. | Needs accurate registration, suitable controls, and regular checks for blocked or misaligned valves. |
| 5. Contact wheel or roller glue applicator | A rotating wheel or roller transfers adhesive by contact rather than spraying it through a nozzle. | Straight, repeatable glue areas on compatible carton blanks or paperboard components. | A straightforward option for continuous application along a consistent path. | Less flexible for isolated dots or changing patterns; wheel contact and adhesive buildup need monitoring. |
| 6. Semi-automatic carton gluing station | An operator positions the blank while a pump-fed nozzle or applicator lays down the selected pattern. | Short runs, sampling, prototypes, and work with frequent changeovers. | Can be easier to adapt to varied jobs than a dedicated high-volume line. | Throughput and placement consistency depend more heavily on the operator and fixture setup. |
| 7. Gantry or robotic pattern-dispensing cell | A programmed dispensing head follows a specified path to apply beads or dots to positioned blanks. | Custom, irregular, or lower-volume packaging work that needs flexible glue paths. | Programmable movement can accommodate multiple patterns without relying on a fixed applicator layout. | Requires programming, reliable blank positioning, guarding, and validation of each pattern. |