PT-S
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For the closure of pinch top sacks with or without plastic inner liner.
Continuous process for highest throughput.
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With the PTS..... series sack closing machines MEYPACK offers equipment to close all kinds of pinch top sacks.
The machine types PTS and PTS-HD.... close pinch top sacks with pre-applied hot melt adhesive at the stepped end (flap). The machines type PT-GL apply several beads of hot melt adhesive at the non coated flap during closing. With machines type PTS-HD..... plastic inner liners or coatings are heat sealed hermetically also. |
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Method of operation :
The sack closing machines series PTS use a continuous process. Heavy duty carrier chains keep the flattened sack top perfectly aligned whilst it passes through the different steps of operation. At the same time the sack is supported by a conveyor (additional equipment). Oncee between the chains the closing sequence is fully automatic through all functions which may differ on the sack specification.
PT-GL: First the sack is scored by a pair of rollers for the following folding of the flap. Several beads of hot melt adhesive are applied to the flap and the sack top is folded along the scored line. The seal is kept under pressure until the hot melt adhesive has set.
PTS: The sack is scored at the folding level. The flap is folded while the pre-applied hot melt adhesive on it is reactivated by hot air. The seal is kept under pressure until the hot melt adhesive has set.
PTS-HD: If necessary, the inside sack walls are cleaned from product contamination in the seal area first. The plastic inner liner or coating is heat sealed between pairs of heater bars. The following operations are the same as in the PTS type machines. |
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Special options available:
Cleaning station
Electromotive elevating device
Direction of feed from left to right
Tilted, horizontally working version for bottom seal processing
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other versions available upon request. |
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