A bag sealer is a machine used to close and secure the open end of a bag. The machine works by heating a sealing strip to a temperature that fuses the bag material together to create a permanent bond.

Bag sealer machines remain the industry standard of economy and reliability. Our industrial bag sealing machines feature small footprints, increased safety, and enhanced operation for a smoother, faster production process.

Our equipment is suited for a variety of markets. Machines are designed with hygiene in mind, thanks to a fully stainless-steel construction.

4600 AeroSeal Bag Closer

The Thiele Series 4600 AeroSeal® Bag Closer is designed to close stepped-end multi-wall bags after the bag has been filled with product.  Once filled, the bag closer activates the pre-applied hot melt adhesive on the bags and folds over the top to seal the closure.

As the filled bag moves along a conveyor, the bag top is manually or automatically formed and fed into the entrance guide of the closer.  V-belts then convey the bag top through the bag closer.

The bag enters between the creasing rollers to set the fold line and to fold the bag top 90 degrees.  The bag enters above the hot air nozzle where hot air, under regulated pressure and temperature, is forced against the pre-applied adhesive to activate it.

Finally, the bag top passes through a series of compression rollers to compress the fold and set the adhesive.

Production Rate

7.6 m – 21.4 m  dependent on bag type and ambient conditions



© Frigopak, d.o.o. / Cookies /