3-Layer Rigid PVC Foam Core-pipe Extrusion System

Advanced Technology

The PVC Foam Core Pipe Extrusion Machine is an advanced, high-efficiency production line designed for manufacturing lightweight, high-strength, three-layer PVC foam core pipes. These pipes are widely used in drainage, sewerage, ventilation, and cable protection systems, offering excellent performance with reduced material consumption.

How It Works
Using co-extrusion technology, the machine forms a solid inner layer, a foamed middle layer, and a smooth outer layer in a single continuous process. This structure ensures high ring stiffness, superior impact resistance, and excellent corrosion resistance, while significantly lowering raw material costs.

Ideal for manufacturers seeking cost-effective, high-quality PVC foam core pipe production with modern automation and reliable performance.

Key Features

• High-output conical or parallel twin-screw extruder for stable plasticization and uniform foaming.
• Intelligent temperature control system and PLC-based automation for reliable operation and energy efficiency.
• Precise pipe dimensions and consistent product quality.

3-layer rigid PVC foam core pipes used for underground drainage sewerage ventilation and cable protection systems

3-layer rigid PVC foam core pipe with lightweight structure and high ring stiffness for drainage and sewerage applications

cross section of 3-layer PVC foam core pipe showing solid inner layer foamed middle layer and smooth outer layer

Bundle of 3-layer rigid PVC foam core pipes for drainage sewerage and underground piping applications

Machine Models & Technical Specifications

Model	Screw Type	Screw Dia (mm)	Main Motor (kW)	Ext. Output (Kg/hr)	Pipe Range (mm)
SMT-80/156X65/132	TWIN SCREW-C	80/156 + 65/132	75+37	500 KG/HR	110-315
SMT-90/22X65/22	TWIN SCREW-P	90/22 + 65/22	55+30	500 KG/HR	110-315

Why choose Sai Machine Tools Foam Core Pipe Machine

The 3-Layer PVC Foam Core Pipe Machine offers several technical advantages, including high output with energy-efficient operation, reduced PVC material consumption, and the production of lightweight yet high-strength pipes with a smooth internal and external surface finish. It also ensures excellent corrosion and chemical resistance, along with a long operational life requiring minimal maintenance.