and heat-seals the bag tops, seals the box top.
The bag in box line includes a carton erector, a poly bag inserter (carton lining machine), a weigh filling machine, a bag sealer, a carton sealer and conveyors. The cartons can be sealed with tape or hot melt glue.
This poly bag inserter feeds film from a roll stock, cuts and seals to form a bag, inserts the bag in an erected carton, opens and cuffs the bag over the carton top flaps, blows air to extend the bag to fit the internal wall of carton