Heavy-Duty HDPE Jacket Pipe Making Machine with Vacuum Calibration for High Output Pre-Insulated Pipe Production

Product Description

The PE Series Pre-Insulated Pipe Extrusion Line, developed by Qingdao Huashida Machinery Co., Ltd., adopts advanced German extrusion technology and integrates extrusion, vacuum calibration, cooling, hauling, cutting, and stacking into a fully automated system.

This production line features high output, stable performance, excellent product quality, and long service life, making it ideal for manufacturing HDPE outer casing pipes.

Compared with traditional internal pressure calibration, the vacuum calibration method provides:
1 Higher pipe stiffness
2 Better pressure resistance
3 Smoother pipe surface

It is one of the most advanced and widely used technologies in the industry.

Applications

This extrusion line is specially designed for producing HDPE outer casing pipes used in PUF (polyurethane foam) pre-insulated pipelines, widely applied in:
1 District heating systems
2 Energy-saving pipeline networks
3 Trenchless pipeline installation

Pipe Structure (Pipe-in-Pipe System)

1 Inner Pipe: Steel or galvanized steel
2 Insulation Layer: Polyurethane foam (PUF)
3 Outer Jacket:
3.1 HDPE for underground installation
3.2 Galvanized steel sheet for above-ground installation

Technical Specifications

Key Advantages

1 Higher reliability of heating pipeline systems
2 Remote monitoring capability for early leak detection
3 Reduced maintenance risks through preventive management
4 Long service life with excellent mechanical strength and corrosion resistance

Company Profile

Qingdao Huashida Machinery Co., Ltd. is a professional manufacturer specializing in plastic pipe production lines and pipeline anti-corrosion equipment, with over 20 years of industry experience.

We focus on providing efficient, reliable, and intelligent pipeline solutions for global customers in energy, municipal engineering, and infrastructure sectors.

We design and manufacture a full range of equipment and materials, including:
1 HDPE jacket pipe extrusion lines for pre-insulated pipes (110–2000 mm)
2 Rigid and flexible pre-insulated pipe production lines (PU / PERT)
3 Steel pipe anti-corrosion coating lines (FBE / 2LPE / 3LPE)
4 Steel pipe shot blasting and derusting lines
5 PE water supply and gas pipe extrusion lines
6 PP/PE sheet, board, and geomembrane production lines
7 NBR/PVC thermal insulation tube and sheet lines
8 Pipeline jointing and anti-corrosion materials