PVC Building Wire Manufacturing Process Using 3 Layer Co-Extrusion Line

• WIRECAN introduces the 80+60+50mm Triple-Layer Co-Extrusion Line, a robust solution for manufacturers looking to upgrade their production of multi-layer power, control, and building wires.

1. Seamless Synchronization: The 80/60/50mm configuration, managed by an intuitive PLC system, ensures consistent product quality and perfect layer bonding.
2. Increased Profitability: The integrated workflow—from extrusion to automatic packaging—minimizes manual intervention, allowing for 24/7 high-speed operation with minimal downtime.
3. Market Readiness: Fully compliant with Western technical standards, providing a future-proof platform for manufacturers targeting high-value global contracts.

System Configuration

The 80+60+50mm extrusion line is designed as a multi-layer co-extrusion system, allowing precise control of each material layer.

• Co-Extrusion Capability
  The system supports two-layer or three-layer co-extrusion, enabling structures such as skin–core–skin or insulation–sheath combinations.

• Independent Extruder Control
  Each extruder operates independently while being synchronized through a PLC control system, ensuring stable output, accurate layer thickness, and consistent product quality.

Typical Applications

1. Multi-Layer Insulated Wires and Power Cables

Used for producing high-quality electrical wires and cables where different materials serve different functions:

• Inner insulation layer

• Outer sheath or protective layer

• Color coding layer

Applicable materials include PVC, PE, XLPE, and LSZH/LSHF, meeting various electrical and safety standards.

2. Composite Plastic Pipes

Suitable for manufacturing multi-layer pipes with enhanced performance:

• Rigid PVC inner and outer layers

• Micro-closed pore or foamed middle layer

This structure provides improved sound insulation, thermal insulation, impact resistance, and reduced material consumption.

Advantages of 80+60+50mm Co-Extrusion Line

• High flexibility for multi-material and multi-color extrusion

• Precise layer thickness control

• Improved product performance and material efficiency

• Suitable for continuous, high-output industrial production

• Ideal for export-oriented manufacturers targeting European and North American markets

Technical Specifications

Knowledge Q&A

Q1: What is a three-layer co-extrusion line used for?

A three-layer co-extrusion line is used to manufacture multi-layer wire, cable, or plastic products by extruding different materials or colors simultaneously. Each layer can serve a specific function, such as electrical insulation, mechanical protection, flame retardancy, or color identification, resulting in higher product performance and consistency.

Q2: Why choose an 80+60+50mm co-extrusion configuration?

The 80+60+50mm extruder configuration provides an optimal balance between output capacity, layer precision, and material flexibility. Larger extruders handle the main insulation or sheath layers, while smaller extruders precisely control thin functional or color layers, ensuring stable production and efficient material usage.

_{The system features three synchronized extruders (80mm, 60mm, and 50mm), allowing precise co-extrusion of different materials or colors in a single production process. It is widely used for producing PVC building wires, low-voltage electrical cables, power cables, and control cables, where each layer provides specific insulation, protection, or identification functions.}

_{Controlled by an advanced PLC + HMI system, the extrusion line ensures accurate layer thickness, excellent concentricity, and stable long-term operation. The complete plant integrates pay-off, preheating, co-extrusion, cooling, diameter control, spark testing, and automatic coiling & wrapping, significantly improving production efficiency and reducing labor costs.}

https://www.fibercablemachine.com/news/wirecan-80-60-50mm-triple-layer-co-extrusion-line-engineering-the-future-of-multi-layer-cabling-278348.html