HDPE Outer Casing Pipe Extrusion Line with PLC Automatic Control System and Vacuum Calibration Method for Pre-Insulated Steel Pipe Production

The PE Shell Pipe Extrusion Line is a high-efficiency system designed for producing HDPE thin wall pipe used as protective cover for PU foam thermal pre-insulated pipes according to international standards. This energy-saving line delivers high-speed production with stable performance.

The HDPE jacket pipe produced features vacuum calibration method with smooth internal and external walls, offering long service life, excellent anti-corrosion insulation, and superior mechanical performance.

• Compact footprint with minimal space requirements
• High degree of automation - operates with only 1-2 personnel
• Extended service life and durability
• High-efficiency extruder delivers larger output with stable performance
• Uniform and smooth pipe wall quality
• Zero raw material waste
• Single-step forming process - no edge trimming required
• Dust-free cutting operation

1. Vacuum Loader: Vacuum automatic feeding system
2. Hopper Dryer: Hot air drying capability
3. High-Efficiency Single Screw Extruder: German barrier screw technology with 10% energy savings
4. Die Head: Multi-layer helical distributing pipe dies
5. Vacuum Calibration Tank: Rapid vacuum calibration for smooth surfaces and uniform wall thickness
6. Hauling Machine: Track-based mechanical clamping system
7. Cutting Machine: Dust-free planetary cutting
8. Discharging Frame: Mobile discharge system
9. PLC Control: Professional plastic machinery control system

Pipe diameter range: 110-2000mm