Automatic Cartoning Machine with Glue Spraying and Box Sealing System

The integrated system applies hot melt adhesive precisely to the carton flaps and immediately seals them under controlled pressure. This creates a tamper-evident, professional, and moisture-resistant seal much faster and more consistently than manual taping or glue brushing. It also reduces consumable costs and labor.

The machine is optimized for hot melt adhesives, which provide fast setting time and strong bonding on coated cardboard. The glue tank is temperature-controlled for consistent viscosity. Other adhesive types can be accommodated upon request.

The system uses precision spray nozzles with adjustable flow rates. The PLC controls the spraying duration and pattern based on carton size. Photoelectric sensors ensure glue is only applied when a carton is present at the sealing station.

No. Photoelectric sensors detect whether a product is inside the carton before the glue spraying station. If the box is empty, the glue spraying and sealing systems are bypassed, and the empty box is rejected. This saves glue and prevents empty packages.

Yes. The spray nozzles are mounted on adjustable rails. When you change the carton size via the touchscreen and adjust the tooling, the glue nozzle position and spray timing automatically adjust (or can be manually repositioned in seconds).

The system is designed for 30-60 boxes/min continuous duty. The heated glue tank maintains consistent adhesive temperature, and the sealing mechanism applies uniform pressure. Regular cleaning of the spray nozzles (daily) is recommended to prevent clogging.

Basic operation is simple via the touchscreen (on/off, temperature setting). The supplier provides training on glue loading, nozzle cleaning, and troubleshooting. Most operators become proficient within one shift.

The glue tank and heated hoses are fully insulated to prevent burns. The system includes over-temperature protection and low-glue alarms. The optional flip-top safety cover further isolates the spraying area during operation.