what is advantage of Durable Spiral Die-head

The Durable Spiral Die-Head is commonly used in extrusion processes, especially for producing plastic pipes, tubes, films, and profiles. It's a type of die head designed to distribute melted polymer evenly and with minimal stress, improving product quality and consistency.

Here are the key advantages of a Durable Spiral Die-Head:

1. Uniform Flow Distribution

The spiral design ensures the melt is evenly distributed across the die, avoiding flow lines, weld lines, or inconsistencies.

This results in a smoother, more consistent wall thickness in the final product (like a pipe or film).

2. Lower Melt Stress

The spiral design reduces dead zones and turbulence in the flow path.

That means the polymer flows more gently and uniformly, reducing molecular stress.

This helps improve mechanical properties and optical clarity of the product.

3. High Output Rates

Spiral die-heads are capable of handling higher throughput without sacrificing quality.

Ideal for mass production scenarios.

4. Self-Cleaning Flow Paths

The spiral channels help minimize stagnation or material build-up.

This translates to less downtime for cleaning and maintenance.

5. Versatile with Materials

Can be used with a wide range of polymers: PE, PP, PVC, etc.

Suitable for both single-layer and multi-layer extrusion systems.

6. Long Service Life

A “durable” spiral die-head is often made from hardened tool steel or stainless materials, ensuring resistance to wear and corrosion.

Great for long production runs and abrasive or corrosive materials.

7. Precise Control

Allows for fine-tuning of wall thickness, layer ratios (in multilayer dies), and diameter.

Better control = less scrap, more efficiency.