Multi-layer HDPE Solid-wall Pipe Co-extrusion Line– HighEfficiency Multilayer Pipe Extrusion Solution

About Us

JWELL Machinery is a professional manufacturer specializing in plastic extrusion equipment, with long-standing experience serving customers in Europe, the Americas, Southeast Asia, the Middle East, and beyond. Our multi-layer HDPE solid-wall pipe co-extrusion line embodies decades of process know-how and continuous innovation. It ensures high production efficiency while helping customers achieve optimal material utilization and stable pipe quality, fully meeting the most stringent international standards.

This product presentation is intended for technical decision-makers and procurement professionals. It systematically covers equipment parameters, selection logic, and our core competitive advantages. Whether you are planning to expand capacity or build a new pipe production base, our engineering team will work closely with you to tailor the best solution.

Product Overview

Our multi-layer HDPE solid-wall pipe co-extrusion lines cover the full production range from Φ16 mm to Φ630 mm. The system uses co-extrusion technology to produce multi-layer pipe structures with different functional layers – ensuring mechanical performance while significantly reducing production costs through stratified material distribution.

Standard Model Line-up

Co-extrusion Technology – Our Core Advantage

Why do we use multi-layer co-extrusion?

Our co-extrusion lines are equipped with two synchronous main extruders, forming inner and outer layers with distinct functions. This design delivers tangible benefits:

Significant material cost savings – expensive functional materials (e.g., UV stabilizers, high-pressure-resistant compounds) are used only in the outer layer, while the inner layer can utilize virgin general-purpose resin or even a certain percentage of recycled material. Compared with single-layer pipes made entirely of premium materials, our customers typically achieve 15%–25% reduction in raw material expenditure.

Performance customisation – the outer layer can focus on weather resistance, abrasion resistance, or specific colour, while the inner layer ensures pressure-bearing capacity and long-term stability – each layer delivers maximum value.

Strong interlayer bonding – our self-developed co-extrusion die ensures molecular-level fusion between layers, completely eliminating delamination risks.

Fast and flexible grade change – quick-change die holders and recipe storage functions drastically reduce changeover time between different specifications, effectively improving Overall Equipment Effectiveness (OEE).

Our Technical Highlights

1. High-Precision Extrusion System

The extruder is the "heart" of the entire line, and we have invested our most mature designs here:

JW series dedicated extruders – fitted with barrier-type screws optimised for HDPE, ensuring homogeneous plasticisation and minimal melt temperature variation – a prerequisite for stable layer thickness and bonding quality.

High-torque gearboxes – our gearbox design and manufacturing standards exceed industry norms, delivering high transmission efficiency and low failure rates. Main motor powers (55–250 kW) and co-extruder motor powers (15–75 kW) are precisely matched to each model’s output requirements.

Zone-independent temperature control – each barrel heating zone uses PID closed-loop regulation, with melt temperature fluctuation within ±1°C, ensuring consistent material processing and long-term extrusion stability.

2. Co-extrusion Die Core Technology

Key design features of our dies:

Spiral distributor flow channels – ensure uniform melt distribution around the circumference, eliminate weld lines, and achieve excellent roundness and wall thickness uniformity.

Online layer-thickness ratio adjustment – layer thickness ratios can be adjusted in real time via the control interface without stopping the line, accommodating different order requirements.

CFD-optimised flow channels – using computational fluid dynamics simulation, we have optimised internal flow geometry to minimise pressure loss and residence time, avoiding material degradation from overheating.

3. Vacuum Calibration and Cooling System

The calibration and cooling stages directly determine final dimensional accuracy:

Multi-section vacuum calibration tank – our design features independent vacuum zones with individually adjustable pressures, ensuring stable shape formation during solidification. All tanks are made of corrosion-resistant stainless steel for long service life.

High-efficiency spray cooling – nozzle layout is optimised for uniform water coverage, effectively reducing internal stresses and ensuring consistent wall thickness.

Online wall-thickness monitoring (optional) – can integrate an ultrasonic thickness gauge with closed-loop feedback control, keeping wall thickness tolerance reliably within ±5%.

4. Haul-off and Cutting Systems

Caterpillar haul-off unit – robust frame, high-friction rubber pads, and frequency-controlled synchronous drive on upper and lower tracks provide constant pulling force without damaging the pipe surface.

Synchronised cutting unit – for pipes up to Φ630 mm, we offer planetary or saw-type cutting solutions with smooth, burr-free cuts. Cutting speed automatically follows haul-off speed for continuous, non-stop production.

5. Automation Control System

Our control philosophy is always "easy to operate, process-transparent, and reliable in operation":

Siemens PLC main controller – industrial-grade Siemens system ensures stability and supports full data logging and traceability.

15-inch touchscreen HMI – centrally displays temperature, pressure, speed, output, and cumulative data – intuitive operation.

Recipe storage and recall – process parameters for different pipe specifications can be saved and recalled with one touch, reducing setup time and human errors.

Remote diagnostic capability – equipment supports remote access, allowing our service engineers to quickly assist in troubleshooting without on-site visits, saving valuable time.

How to Select the Right Model – We Help You Define the Configuration

Choosing the most suitable production line requires consideration of capacity targets, material strategy, and return on investment. Our engineering team will communicate thoroughly with you to determine the optimal configuration.

Selection Reference Guide

Key factors to consider during selection:

Annual output planning – based on your sales forecast and annual operating hours, our models cover outputs from 170 to 1240 kg/h – there is always a match.

Raw material strategy – if you plan to use recycled material in the inner layer, the co-extruder configuration may need adjustment – we can provide professional advice.

Pipe specification range – define the maximum/minimum diameters, wall thicknesses, and pressure ratings required for your target market.

Workshop space – we will provide detailed layout drawings tailored to your plant conditions for optimal space utilisation.

Power and utilities – please confirm your site’s power supply, cooling water, etc.; we will adapt the design accordingly.

Core Performance Indicators

Energy consumption – energy efficiency is a key design focus; the specific power consumption (kWh/kg) of each model is among the industry’s best, reducing long-term operating costs.

Material versatility – the line processes HDPE, MDPE, PE80, PE100, and various blended/modified materials; special feeding devices can be added on request.

Wall thickness range – depending on diameter and formulation, pipes from 1.5 mm up to over 40 mm wall thickness can be produced.

Production speed – line speed varies with diameter and wall thickness; small diameters can reach 20 m/min, while large diameters run slower. We will provide a speed estimate for your specific product.

What Overseas Customers Care About Most – Our Commitment

With years of experience serving international markets, we fully understand the key concerns of overseas buyers.

1. Quality Assurance and International Certifications

Our lines can stably produce pipes that comply with the following mainstream standards:

ISO 4427 (PE pipes for water supply)

ISO 4437 (PE pipes for gas supply)

ASTM D3035

EN 12201

DIN 8074

GB/T 13663

2. Equipment Durability and Reliability

Production stoppages are the last thing anyone wants. Our equipment operates reliably worldwide, even in harsh environments (high temperatures in the Middle East, high humidity in Southeast Asia).

Reliability design details:

All-steel welded frames with vibration-damping pads

Oversized bearings on all rotating components

Multiple electrical safety interlocks

Adequate stock of wear parts with fast response

3. Comprehensive After-Sales Support

We understand that cross-border procurement relies heavily on after-sales service, so we have established:

12-month full machine warranty – covering all mechanical and electrical components.

On-site installation guidance – our engineers will travel to your plant, participating from installation and commissioning to trial production.

Remote technical support – 7×24 remote access, with response within 4 hours.

Global spare parts delivery – partnered with international logistics providers to ensure fast shipment.

Frequently Asked Questions (FAQ)

Q1: Can you produce three or more layers?

A: Our standard models are two-layer co-extrusion, but we also have customisation capabilities for three-layer and multi-layer designs. Please contact our engineering team for special requirements.

Q2: What is the maximum production speed for each model?

A: Speed depends directly on pipe diameter and wall thickness. For example, the JWPEG-63 (small diameter) can reach 20 m/min, while the JWPEG-630, due to its large diameter and high output, runs slower. We will provide an accurate speed forecast for your specific product during the proposal phase.

Q3: How much floor space is required for installation?

A: Total line length ranges from approx. 28 m (JWPEG-63) to approx. 45 m (JWPEG-630), with width about 4–5 m. We will provide a detailed floor plan based on your workshop dimensions.

Q4: What are the power supply requirements?

A: Standard is three-phase 380V/50Hz; we can also supply 415V/60Hz or other voltage/frequency upon request. We can adapt to local grid conditions.

Q5: How do you accommodate different HDPE resin grades?

A: Our screw design and temperature control system are well-suited for PE80, PE100, and various modified materials. The control system stores multiple process recipes – when switching raw materials, one-touch recall ensures stable quality.

Why Choose Us? – JWELL’s Unique Value

1. Deep Industry Expertise

We have been in the extrusion equipment field for decades, with profound understanding and numerous successful cases in screw design, thermal control, automation integration, and other core areas.

2. Flexible Customisation

We are not bound by fixed models; we can tailor designs to your special pipe specifications, raw material formulations, or site constraints – truly "one policy per customer".

3. Rigorous Quality Control

The company is ISO 9001 certified. Every machine undergoes full no-load and load tests before delivery, ensuring "ready-to-run upon arrival".

4. Global Service Network

We have service agents or technical cooperation points in many countries and regions, with strategically located spare parts warehouses for rapid response.

5. High Cost-Performance Ratio

We are committed to delivering "performance without compromise, price with reason", emphasising total cost of ownership (TCO) as a competitive edge, not just low initial price.

Sustainability and Environmental Responsibility

Our co-extrusion lines incorporate green principles from the design stage:

Raw material savings – co-extrusion itself greatly reduces the consumption of high-cost materials, cutting resource use at source.

Energy-efficient drives – high-efficiency motors and optimised heating/cooling systems reduce energy consumption per unit of output.

Durable pipes – HDPE pipes have a service life exceeding 50 years, supporting long-term infrastructure performance.

Recyclability – our multi-layer pipes are fully recyclable at the end of their life.

Typical Application Cases

Our equipment has served numerous projects worldwide, including:

Europe: urban water supply network renovation in Eastern Europe

Middle East: gas transmission systems in Gulf countries

Southeast Asia: industrial pipes and drainage pipes for construction

Latin America: agricultural irrigation and water transfer projects

Africa: drinking water infrastructure projects

We can provide (with customer consent) specific case references upon request.

Contact Us for a Customised Solution

Our technical and sales teams are ready to provide:

Preliminary engineering assessment and feasibility study

Customised configuration for your product requirements

Formal quotation with detailed specifications and commercial terms

Factory visit and equipment trial run observation

Full support from installation to production launch

JWELL Machinery

Professional equipment for your sustainable development

This document is a general introduction to our multi-layer HDPE solid-wall pipe co-extrusion lines. Due to continuous product improvement, specifications may be subject to change. Please refer to the latest contract or quotation for current parameters. For accurate data, contact our sales representative.

Enquiry Guide – Helping You Get a Precise Proposal Quickly

To allow us to offer the most suitable solution, please provide the following information in your enquiry:

Pipe diameter range you plan to produce

Estimated annual or monthly output

Main target market (water supply, gas, drainage, industrial, etc.)

Raw material plan (virgin, recycled, or blended)

Your plant’s power supply (voltage/frequency)

Expected delivery time

Any special automation or quality inspection requirements

Upon receiving the above, we will prepare for you:

Recommended configuration with detailed justifications

Commercial quotation with delivery terms

Installation and commissioning schedule