Product IntroductionThe fully automatic two-station rotary tube sealing machine is designed for automatic sleeving and heat sealing of straws and spout-type bags. It handles various straw diameters, lengths and bag formats, and is suitable for beverage spout stand-up bags, suckable jelly, condiments and personal care products. The machine can be customized to integrate with filling lines for continuous operation.
Technical ParametersOverall dimension: 2900 mm × 2400 mm × 2000 mm (L × W × H)
Sealing types: Stand-up bag, three-side sealed bag, gusset bag, special-shaped bag (customized)
Material: Bag inner layer PE/PP; Straw/tube PE/PP
Product size range: Bag length 100–180 mm; Width 70–120 mm; Sealing length 60–120 mm
Straw diameter: Standard 8.5 mm (other sizes customizable)
Working speed: 80–90 pcs/min (depends on material and bag size)
Positioning accuracy: ≤ ±0.5 mm
Sealing cutter groups: 6 (1 preheat, 4 heat sealing, 1 cooling)
Temperature control: 2 sets (12 channels), accuracy ±0.1°C
Heating range: Ambient to 300°C
Power supply: 380 V/50 Hz, 13 kW
Air supply: 0.6–0.8 MPa, 11 L/min
Equipment weight: 2000 kg
Product Features- Two-station rotary layout enables fully automatic processing including preheating, bag separation, tube feeding and heat sealing.
- Sealed products are automatically transferred to a transition machine for downstream handling or packaging.
- PLC control with configurable parameters allows fast changeover between different bag and straw specifications.
- Equipped with imported temperature control modules and pneumatic components (SMC, Festo, Airtac) for stable operation.
- Stepwise heating followed by cooling delivers reliable seal quality across materials.
- Automatic fault detection with alarm, stop and diagnostic display for quick troubleshooting.
- Compact footprint and optimized weight for long-term stable production.
- Main contact parts in aluminum alloy and stainless steel meet food and pharmaceutical GMP hygiene requirements.
System Composition- Dual-station structure including bag feeding system, tube feeding system, heat sealing system, bag discharge, reject mechanism, transition conveyor, control system and machine base.
- Bag feeding unit includes placement, positioning, pick-and-place and sleeving mechanisms to mount bags onto straws one by one.
- Tube feeding uses a vibration bowl and transfer chute with automatic detection and start/stop control during feed.
- Heat sealing unit comprises preheating, heat sealing and cooling stages (1 preheat cutter, 4 heat sealing cutters, 1 cooling cutter); sealing and cooling cutters can be adapted for different straw sizes.
- Each sealing cutter group supports independent temperature control and separate adjustment.
- Bag collection includes discharge mechanism and automatic tray replacement when full.
- Operator interface displays real-time status including production speed, output count, shift yield, date and temperature parameters.
Application Fields- Jelly spout bags
- Soymilk spout bags
- Personal care and toiletries spout bags
- Puree bags
- Special-shaped spout bags
- Collapsible outdoor water bags
Technical Specifications- Overall dimension: 2900 mm × 2400 mm × 2000 mm (L × W × H)
- Sealing types: Stand-up bag, three-side sealed bag, gusset bag, special-shaped bag (customized)
- Material: Bag inner layer PE/PP; Straw/tube PE/PP
- Bag size range: Length 100–180 mm; Width 70–120 mm; Sealing length 60–120 mm
- Straw diameter: Standard 8.5 mm (other sizes customizable)
- Working speed: 80–90 pcs/min (dependent on material and bag size)
- Positioning accuracy: ≤ ±0.5 mm
- Sealing cutter groups: 6 (1 preheat, 4 heat sealing, 1 cooling)
- Temperature control: 2 sets, 12 channels, accuracy ±0.1°C
- Heating range: Ambient to 300°C
- Power supply: 380 V/50 Hz, 13 kW
- Air supply: 0.6–0.8 MPa, 11 L/min
- Equipment weight: 2000 kg