PU Injection Foam（Pipe in Pipe）Pre-Insulated Pipe Production Line

                      PU Injection Foam (Pipe in Pipe) Pre-Insulated Pipe Production Line 

Product Description

The Vacuum Calibration Pre-Insulated Pipe Extrusion Line is independently developed by Qingdao Huashida Machinery Co., Ltd. based on advanced German pipe extrusion technology. Through continuous innovation and optimization, the production line delivers outstanding extrusion performance, high automation, stable operation, and long-term reliability.

The complete line integrates a high-efficiency extruder, vacuum calibration system, cooling tank, haul-off unit, cutting machine, and automatic stacker into one coordinated production system. With intelligent control and synchronized operation, it ensures consistent product quality while reducing labor requirements and improving production efficiency.

Why Choose Huashida Pre-Insulated Pipe Extrusion Line?

• Advanced Vacuum Calibration Technology – Delivers higher dimensional accuracy, smoother pipe surfaces, and better pipe rigidity than conventional internal pressure methods.
• High Automation – Fully integrated extrusion, calibration, cooling, haul-off, cutting, and stacking system for efficient, continuous production.
• Stable & Reliable Performance – Optimized design ensures consistent extrusion quality, low maintenance, and long service life.
• Excellent Pipe Quality – Produces HDPE jacket pipes with precise dimensions, uniform wall thickness, and superior surface finish.
• Custom Solutions – Available in various pipe diameter ranges and production capacities to meet different project requirements.
• Professional Support – Complete technical service from machine design and installation to commissioning and after-sales support.

Technological prameters

Production line composition:

-1set   Vacuum loader 
-1set   Hopper dryer
-1set   High-efficiency single screw extruder
-1set   Vacuum calibration table 
-1set   Water spraying tank 
-1set   Hauling machine
-1set   Cutting machine
-1set   Discharging Frame
-1set   PLC 

Features :
1.small dimension
2.high degree of automation, can be operated by one person, saving labor costs
3.long service life.
4.high-efficiency extruder gives larger output, stable performance
5.pipe wall is average and smooth
6.no waste of raw material
7.One-time molding