Paper Sack Tuber Machine

This automated Paper Sack Tuber Machine is designed to fabricate dual-type paper/PE composite sack tubes (step-type & straight-type configurations) in multiple dimensions. Utilizing roll-fed paper substrates and polyethylene films as primary materials, the system integrates seamlessly with downstream Valve Sack Bottomer equipment for complete sack manufacturing.

Process Flow:

1. Material Handling:

Dual unwinding system for continuous paper & PE film feeding

Optional flexographic printing unit (up to 4 colors) with automatic web guidance

2. Composite Formation:

Precision perforation system

Cross-directional adhesive application

Machine-direction bonding process

3. Tube Conversion:

Continuous forming section with diameter adjustment

Automated cutting/pulling-off mechanisms

Intelligent tube collection system

Operational Advantages:

• ✓Full-process automation reduces labor requirements by 60-70% compared to manual operations

• ✓Integrated process control ensures dimensional consistency (tolerance ±2mm)

• ✓Flexible configuration adapts to production demands from 200~350pcs/min

End Applications:

The manufactured tubes serve as essential components for subsequent valve-bottom sack production, particularly suitable for packaging:

· Cement & construction materials

· Chemical powders & granules

· Agricultural products & food grains

· Mineral processing outputs

System Compatibility:
Designed for direct interface with standard Valve Sack Bottomer machines, ensuring smooth material transfer and process synchronization in complete sack manufacturing lines.