The HDPE jacket pipe extrusion line is a high-efficiency system designed with high speed and energy savings for producing HDPE pipe used as the protective outer casing for PU foam thermal pre-insulated pipe, in compliance with international standards.

The HDPE jacket pipe is manufactured using a vacuum calibration method, resulting in:

• Smooth internal and external walls
• Long service life
• Excellent anti-corrosion insulation
• Superior mechanical performance

This production line is mainly used for producing HDPE outer protective pipes, a key component of prefabricated insulation pipes. The equipment supports a wide pipe diameter range from 110 mm to 1680 mm, meeting diverse needs from residential projects to large industrial pipelines.

The core production unit adopts a high-efficiency single screw extruder, and the entire line is designed with high automation, greatly reducing manual intervention while ensuring stable and efficient production.

• Compact Structure Design – Small footprint, easy installation, space-saving
• High Automation Level – Fully automated operation, can be controlled by one operator, reducing labor costs
• Long Service Life – Durable components ensure stable operation and extended equipment lifespan
• High-Efficiency Extruder – Provides high output capacity with stable and reliable performance
• Uniform and Smooth Pipe Surface – Advanced calibration ensures consistent wall thickness and smooth inner & outer surfaces
• No Material Waste – Optimized production process minimizes raw material loss
• One-Step Forming Technology – Pipes are formed in one process, no need for edge trimming or secondary processing

Vacuum feeding PE granule → Hot air drying → Extrusion plasticizing → Mold shaping → Vacuum sizing → Water cooling → Haul-off → Pipe cutting → Pipe laying

1. Hopper Dryer
2. Single Screw Extruder
3. Extrusion Mold Die
4. Head Bracket
5. Vacuum Calibration Device
6. Water Cooling Tank
7. Haul-Off
8. Planetary Cutting Machine
9. Pipe Bracket
10. Loader