Product Overview

Discover the cutting-edge HDPE Jacket Pipe Extrusion Line, tailored for pre-insulated pipe perfection. Ingeniously crafted by Qingdao Huashida Machinery Co., LTD, this line revolutionizes HDPE pipe extrusion technology, enhancing it with advanced design features.

This production marvel integrates extrusion, vacuum calibrating, cooling, pulling, cutting, and stacking into a seamless operation. It boasts exceptional automatic functionality, superior extrusion capacity, unmatched stability, and an extended service life. Compared to systems using the internal pressure method, our vacuum calibrating technique excels in delivering enhanced stiffness, superior pressure resistance, and an impeccably smooth surface finish.

The pre-insulation pipe external casing extrusion line stands as a testament to the zenith of technological advancement. Renowned as a leader in innovation, this machinery captivates the world with its advanced, sophisticated design.

Technical Parameters

We provide a comprehensive range of models, supporting pipe diameters from 110mm up to 2000mm.

Production Process & Flow

1. HDPE Jacket Process Flow

A Seamless Journey from Raw Material to Final Product:

The process begins with vacuum feeding PE granules, followed by hot air drying to ensure material purity. Next, the extrusion plasticizing stage transforms the material, which is then expertly mold-shaped. Vacuum sizing ensures precision, water cooling solidifies the form, and the product is carefully pulled out. Finally, it is skillfully cut into pipes, ready for carrier laying-off.

2. PU Foaming Pre-insulated Pipe ('Pipe in Pipe')

Streamlined Step-by-Step Precision:

1. Steel Pipe Pretreatment: Meticulous surface preparation of the steel carrier pipes.

2. HDPE Outer Pipe Crafting: Creation of the robust HDPE outer protective jacket.

3. Insulation Layer Creation: The steel pipe is inserted into the HDPE casing with strategic supports. Both ends are sealed with flanges, and the assembly is moved to the foaming platform.

4. Injection & Curing: A high-pressure foaming machine injects polyurethane material. After curing, seals are removed, culminating the masterful production process.

 Main Equipment List

01. Loader & Hopper Dryer

Streamline material handling with our efficient loader and advanced hopper dryer, specifically designed for optimal moisture removal and enhanced material quality.

02. Single Screw Extruder

Experience unparalleled extrusion performance with maximum efficiency and consistent output for PE materials.

03. Extrusion Mould Die & Head Bracket

Precision-engineered dies guarantee perfect shaping and uniformity, supported by a sturdy head bracket for unbeatable stability.

04. Vacuum Calibration Device

Achieve flawless dimensions and superior surface smoothness, meeting the highest industry standards.

05. Water Cooling Tank

State-of-the-art cooling technology crucial for maintaining the integrity and stiffness of your insulated pipes.

06. Haul-off & Planetary Cutting Machine

Reliable pipe handling systems and precision planetary cutting units ensure clean, vertical cuts for a professional finish.

07. Pipe Bracket & Discharging Frame

Robust support structures for unwavering stability during the final stages of production.

08. PLC Control System

Harness cutting-edge technology with automated control, offering unmatched precision for the entire production line.

 About HUASHIDA Machinery

Qingdao Huashida Machinery Co., LTD is a global leader with over 20 years of expertise in plastic extrusion equipment. Our mission is to provide sophisticated, stable, and high-capacity solutions to the international market.

Contact us today to revolutionize your insulation pipe production with HUASHIDA technology.