Paper Tube Machine at Best Price in Africa

What is a Spiral Paper Tube Winding Machine?

It is the most common type of paper tube machine. It produces tubes by winding multiple plies (layers) of paper or paperboard at a consistent, fixed angle (typically between 15° and 85°) around a central mandrel. This creates the characteristic spiral seam that runs around the tube like a candy cane.

This method is renowned for its versatility, strength, and efficiency.

Core Working Principle: The Spiral Wind

The key differentiator is the winding angle. Unlike parallel winding where the paper edges are straight, in spiral winding:

1. The paper is fed onto the mandrel at an angle.

2. Each new layer of paper bridges the seam of the previous layer, creating a strong, interlocked structure.

3. The continuous winding and overlapping create a seemingly seamless, very long tube that is then cut to size.

Key Components Specific to a Spiral Machine

While it shares many components with other tube machines, these are critical for the spiral process:

1. Angled Paper Feed System: This is the heart of the machine. It consists of a complex set of guide rollers that precisely position the paper at the required winding angle before it contacts the mandrel.

2. The Mandrel: A long, polished, hardened steel shaft around which the tube is formed. Its diameter defines the inner diameter (ID) of the tube.

3. Forming Belt or Tapes: These are continuous steel or polymer belts that wrap around the paper on the mandrel. They apply pressure to

   ensure tight winding and proper seam bonding before the glue sets.

4. Variable Angle Adjustment: A well-designed machine allows operators to adjust the winding angle, which influences the tube's properties (e.g., a shallower angle can increase

   crush resistance).

Advantages of Spiral Winding

• Excellent Crush Resistance: The spiral structure distributes compressive forces evenly around the tube, making it ideal for heavy loads.

• Good Flexibility & Bend Strength: The helical structure can absorb some flex without failing.

• Wide Range of Sizes: Spiral machines can produce tubes from very small diameters (10mm) to very large ones (over 1 meter).

• High Production Speed: The process is continuous and can run at very high speeds, making it highly efficient.

• Material Versatility: Can handle a wide variety of paper grades, from light-weight kraft to heavy-duty linerboard and even non-woven materials.