Single Screw PVC Extruder Machine

Technical Overview

Unlike a twin-screw extrusion line that can process mixed PVC powder directly, the single-screw production line normally uses pre-granulated PVC compounds.

PVC resin, stabilizers, pigments, fillers and processing additives are first mixed according to the required product formulation. The mixed material is then converted into granules before entering the edge band extrusion line.

This creates two main plasticizing stages:

• Plasticizing during PVC granulation

• Secondary plasticizing during edge band extrusion

The secondary plasticizing process helps improve material dispersion, color consistency and melt uniformity. It also makes production parameters easier to control when producing different edge band widths, colors and thicknesses.

Main Technical Specifications

Final output, motor power, screw size and line speed should be confirmed according to the PVC formulation, product dimensions and number of extrusion cavities.

Core Processing Systems and Technical Control

Single-Screw Extrusion

The single screw feeds, compresses and plasticizes PVC granules under controlled heating. Adjustable temperature zones and screw speed help maintain stable melt pressure, uniform plasticization and consistent output.

Die Forming and Size Control

The extrusion die determines the width and profile of the edge band. Different sizes can be produced by changing the die. Thickness is controlled through the die gap, extrusion output and haul-off speed.

Embossing and Surface Forming

An optional embossing unit creates wood-grain, leather or other textures. Roller temperature and pressure can be adjusted to maintain a clear, uniform pattern.

Cooling and Haul-Off

The cooling section stabilizes the width, thickness and flatness of the extruded strip. Variable-speed haul-off control synchronizes traction with extrusion output, reducing stretching, curling and dimensional variation.

Online Primer Coating

The primer coating unit treats the back of the PVC edge band for downstream adhesive bonding. Adjustable coating, drying and tension control support uniform surface preparation.

Winding System

The finished edge band is wound under controlled tension to produce compact, uniform rolls without stretching or deformation.

Optional Printing and UV Coating

Additional equipment can apply wood-grain, stone or custom patterns. UV coating is available for matt, semi-gloss and high-gloss finishes.

FAQ

Does the single-screw extruder process PVC powder directly?

The line normally uses pre-compounded PVC granules. Mixed PVC powder should first pass through a granulation process.

What edge band sizes can the machine produce?

The line can produce widths from 19 mm to 54 mm and thicknesses from 0.4 mm to 2 mm with suitable dies and process settings.

Can one machine produce different widths?

Yes. Different widths can be produced by replacing the extrusion die and adjusting the operating parameters.

Can the machine produce embossed edge banding?

Yes. An embossing unit can be added to produce wood-grain, leather or other surface textures.

Does the line include primer coating?

An online primer coating unit can be integrated to treat the back surface before winding.

Can printing and UV coating equipment be added?

Yes. Separate printing and UV coating systems can be configured for wood-grain, matt or high-gloss edge bands.

Request a Technical Configuration

Send ANDA Machinery your required edge band width, thickness, PVC formulation, surface texture, color range and expected output.

Our technical team will recommend a suitable extruder, die structure, cooling system, haul-off unit, primer coating machine and winding configuration for your PVC Single-Screw Edge Banding Production Line.