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FBP-4W
Automatic top-folding and heated-bar sealing machine for single- and multi-wall paper bags with PE inner liners
This top-folding and heated-bar sealing machine is designed for packaging single- or multi-wall paper bags with PE inner liners. It completes a sequence of operations through programmed control, including inner-liner heat sealing, liner pressing, bag-top trimming, crease-line forming, top folding, application of a hot-melt paper tape, heated compression of the tape, and bag counting. A bag-top dust-removal module can be added when needed.
Process Flow
Inner-liner hot-air preheating → inner-liner heat sealing (4 heated-bar groups) → roller pressing → crease-line forming → 90° bag-top folding → hot-air heating (activating the hot-melt coating on the fold) → roller compression
Technical Specifications
| Model | FBP-4W |
| Sealing speed | 7–12m/min |
| Heating bar power | 0.5kW×8 |
| Heating tube power | 0.3kW×2, 0.75kW×3 |
| Hot air motor power | 0.55kW |
| Total power | 7.5kW |
| Machine dimensions (L×W×H) | 3662×1019×2052 |
| Machine weight | Approx. 550kg |
| Sealing height (from floor) | 800–1700mm |
| Folding height | 50mm |
| Sealing temperature | 0 to 400℃ |
| Applicable materials | 3-layer paper bags with inner PE liner or laminated bags |
| Machine main material | Standard carbon steel |
| Bag-mouth clearance | ≥250mm (distance from product level to bag mouth) |