Kraft Paper Tube Making Machine Manufacturer

Kraft Paper Tube Making Machine is a type of paper tube machine specifically optimized to handle the unique properties of kraft paper. These machines are renowned for producing exceptionally strong and durable tubes.

Key Features of a Machine Optimized for Kraft Paper

A standard spiral tube machine can handle kraft paper, but an optimized one will have these features:

1. Heavy-Duty Unwind Stands:

   • Kraft paper is often supplied in heavy, large-diameter rolls. The unwind stands must be robust enough to handle this weight and the high tension without deformation.

2. Powerful Tension Control System:

   • Due to its strength and stiffness, kraft paper requires precise and powerful tension control to prevent breakage and ensure tight, consistent winding.

3. High-Capacity Gluing System:

   • The porous nature of kraft paper absorbs more adhesive. The machine needs a gluing system with a higher flow rate and robust pumps to ensure complete and even coverage without skipping.

4. Reinforced Mandrel and Forming Section:

   • Tubes made from kraft paper, especially multi-layered ones for heavy-duty applications, can exert significant force on the mandrel during winding. The mandrel and the forming belts must be heavy-duty to resist bending and wear.

5. Abrasion-Resistant Components:

   • The rough surface of kraft paper is more abrasive than smoother papers. Key components like guide rollers and forming belts should be made from hardened or coated materials to extend their lifespan.

Process Flow for Kraft Paper Tubes

The process is the same as a standard spiral tube machine, but with an emphasis on power and adhesion:

Kraft Paper Roll → Heavy-Duty Unwinding → Precise Tension Control → High-Volume Glue Application → Spiral Winding under High Pressure → Cutting → Drying (to cure the strong bond) → Finished Kraft Tube

Applications of Kraft Paper Tubes

The exceptional strength of kraft paper makes these tubes ideal for demanding applications:

• Construction & Engineering:

  • Sonotubes: The #1 application. Used as cylindrical forms for pouring concrete pillars and foundations. Requires immense crush resistance.

  • Column Forms.

• Heavy-Duty Industrial Cores:

  • Cores for winding heavy materials like steel, carpets, fiberglass, and large rolls of plastic or fabric.

• Packaging:

  • High-Strength Shipping Tubes: For valuable, fragile, or heavy items (e.g., aerospace parts, artwork, blueprints).

  • Packaging for Rolls: Such as flooring, linoleum, and insulation.

• Specialty Products:

  • Yoga Mats Roll Tubes.

  • Fireworks Casings.