Multi-Wall Pinch Bottom Open Mouth Paper Bags Sealer

The Pinch Bottom Bag Sealer & Closer provides an effective double closure of PBOM (Pinch Bottom Open Mouth) bags. First, the bag's inner ply is sealed - then the machine activates the pre-applied hot melt adhesive, folds the top flap against the face of the bag and compresses to set the closure; providing a strong, attractive package. Proper closure results in the strongest multiwall shipping sack available. There are no needle holes to weaken the bag, and no taped ends or thread tails to snag and rip the bag. The machine cover pivots and compression belt assembly rotates up for easy cleaning and maintenance. The primary fold-guide hinges up and away from the hot air plenum with a simple hand lever. It is equipped with a belt breakaway with pushbutton that removes belt pressure and allows instant removal of bag. The VFD allows easy adjustment of belt speed for optimal operation. The digital controllers provide consistent and precise temperature control. Most maintenance can be performed by the machine operator.
 

Hot air preheating of the inner bag → heat sealing of the inner bag (heating by 4 sets of heating blocks) → pressing of rollers → indentation of the folded edge line → 90° bending of the bag mouth → heating by hot air (hot melt adhesive coating at the folding mouth) → pressing of rollers
This kind of paper bag packaging has good packaging fastness and good sealing performance, which can prevent dust, moisture, mildew, pollution, etc., so that the product inside can be properly protected.