Plastic Pipe Extrusion Line
Introduction
Plastic pipe extrusion is a continuous, high-volume process that converts thermoplastic pellets or powder into finished pipes with precise dimensions, smooth surfaces and controlled mechanical properties. A modern extrusion line is an integrated system of machines, controls and auxiliaries designed for round-the-clock operation, quick product change-over and minimal waste.
Core Components of the Line
2.1 Material Handling & Drying
• Vacuum loaders, hopper dryers or crystallizers (for PET) ensure moisture levels <0.02 % to avoid hydrolytic degradation.
• Gravimetric blenders dose virgin resin, regrind, masterbatch and additives to ±0.1 % accuracy.
2.2 Single-Screw or Twin-Screw Extruder
• Barrier or grooved-feed single-screw extruders (L/D 30–38:1) dominate PE, PP and PVC-U applications.
• Counter-rotating conical twin-screw machines (L/D 22–26:1) are preferred for rigid PVC thanks to lower shear and excellent melt homogeneity.
• Key parameters:
– Screw speed: 20–120 rpm (servo-driven, energy recovery)
– Specific output: 10–25 kg/h per kW for HDPE
– Melt temperature window: 180–220 °C (PE), 165–195 °C (PVC)
– AC permanent-magnet motors + direct-drive gearboxes cut energy use by 8–12 % versus traditional designs.
2.3 Screen Changer & Melt Pump
• Continuous, hydraulically-sliding plate screen changers allow filter swaps without line shutdown.
• Gear pumps (up to 350 bar) stabilize melt pressure, reducing thickness variation to <±1 %.
2.4 Die Head & Calibrator
• Spiral or basket dies for diameters 16–1600 mm.
• Multi-layer co-ex heads (2-, 3- or 5-layer) produce pipes with barrier (EVOH), adhesion tie-layers or recycled cores.
• Calibrating sleeves, vacuum tanks and spray cooling chambers secure roundness and diameter tolerances to ISO 11922-1 Class B or tighter on request.
2.5 Cooling & Haul-Off
• Vacuum sizing tanks (2–6 m) with closed-loop water temperature control (±1 °C).
• Caterpillar or belt haul-offs with dual servo drives maintain haul-off accuracy within ±0.1 %.
• Flying knife or planetary saw cutters slice pipes at line speed without stopping.
2.6 Take-Off & Automation
• Pipe belling machines (socket forming) for PVC sewer pipes.
• Automatic coilers for PE drip irrigation tubes (coil OD up to 2 m).
• Laser marking or inkjet printers apply traceability codes; vision systems detect surface defects in real time.
Typical Pipe Specifications Produced
| Material | Size Range | Standard | Application |
|---|
| HDPE | 16–1600 mm | ISO 4427, ASTM F714 | Water & gas distribution |
| PP-R | 20–160 mm | ISO 15874 | Hot & cold plumbing |
| PVC-U | 50–630 mm | ISO 1452, ASTM D1785 | Drainage, conduit |
| PE-RT | 16–32 mm | ISO 22391 | Under-floor heating |
| Double-wall corrugated PE | 200–1200 mm | EN 13476 | Storm-water drains |
Capacity & Power Consumption (Reference Values)
| Line Model | Pipe Range | Output (kg/h) | Installed Power (kW) | Footprint (m²) |
|---|
| PE-63 | 16–63 mm | 250–350 | 110 | 120 |
| PE-250 | 75–250 mm | 550–750 | 220 | 200 |
| PE-630 | 315–630 mm | 1000–1200 | 400 | 350 |
| PVC-250 | 110–250 mm | 350–450 | 180 | 180 |
Quality & Sustainability Features
• Gravimetric extrusion control (GEC) links haul-off speed to melt pressure, saving 2–4 % resin.
• Closed-loop water circuits and energy-efficient servo motors lower CO₂ footprint by up to 30 %.
• Inline ultrasonic wall-thickness gauges ensure compliance with ISO 9001 factory audits.
After-Sales & Digitalization
• Remote VPN access for diagnostics, recipe download and OEE dashboards.
• Cloud-based predictive maintenance alerts for gearbox vibration and heater wear.
• On-site training covering start-up, troubleshooting and die cleaning procedures.
High-Performance Plastic Pipe Production Line Overview
Investing in a high-quality plastic pipe production line is essential for consistent, high-volume manufacturing. At Qingdao Zhongrui Plastic Machinery Co., Ltd., we engineer advanced extrusion machinery. Our equipment processes a comprehensive range of materials, including PE, PC, PVC, PP, PP-R, PET, PE-RT, and PA. We integrate automatic computer digital control systems into our machines. This ensures high production efficiency, precise wall thickness, and reliable output. Whether you are upgrading an existing facility or building a new plant, we can help. Our extrusion solutions provide the stability needed to stay competitive globally.
Types of Plastic Pipe Extrusion Lines We Offer
To meet diverse industrial demands, we categorize our plastic pipe extrusion lines by material and application. Each machine features specialized screw designs and heating systems. This maximizes the plasticization and output of specific polymers, ensuring optimal performance for your target industry.
PVC Pipe Production Line Solutions
Our PVC pipe making machines utilize advanced conical twin-screw extruders. We specifically optimize these systems for processing PVC powder. They are highly effective for manufacturing rigid pipes used in municipal drainage, electrical conduits, and building water supply networks. By maintaining precise temperature control, a PVC pipe production line ensures excellent pipe rigidity, impact resistance, and long-term durability.
PE & HDPE Pipe Extrusion Lines
For flexible and high-pressure applications, our PE pipe extrusion equipment features high-efficiency single-screw technology. These machines are designed for high-speed production, delivering exceptional melt homogeneity. The resulting pipes are widely utilized in agricultural irrigation, industrial gas transportation, and municipal water distribution. Our PE and PPR pipe production lines handle high-capacity demands with minimal energy consumption.
PPR & PE-RT Pipe Manufacturing Equipment
Precision is paramount for hot and cold water plumbing systems. Our PPR and PE-RT pipe manufacturing equipment features specialized co-extrusion capabilities and advanced vacuum sizing technology. This ensures every pipe meets strict dimensional tolerances and thermal stability requirements for safe residential and commercial plumbing.
Technical Parameters & Specifications
Understanding extruder technical parameters is critical for matching equipment to your production goals. Below is a general specification table outlining pipe diameter ranges, output capacities, and motor power. This data covers our standard plastic pipe manufacturing models to help guide your purchasing decision.
| Machine Model Type | Pipe Diameter Range (mm) | Output Capacity (kg/h) | Main Motor Power (kw) |
| Small Diameter PE/PPR Line | 16 - 63 | 150 - 250 | 55 - 75 |
| Medium Diameter PVC Line | 50 - 160 | 200 - 350 | 37 - 55 (Twin Screw) |
| Large Diameter HDPE Line | 160 - 315 | 350 - 500 | 110 - 160 |
| Heavy-Duty PVC Line | 315 - 630 | 500 - 800 | 90 - 132 (Twin Screw) |
Main Working Process of the Pipe Making Machine
We believe in complete technical transparency. The plastic pipe manufacturing process follows a highly synchronized workflow. This transforms raw polymer into finished, high-quality pipes ready for market distribution.
| Process Stage | Description |
| Raw Material Mixing | Polymers and necessary additives are blended to achieve the correct formulation. |
| Material Feeding | The mixed compound is automatically fed into the extruder hopper. |
| Extrusion | The screw melts and pushes the plastic through a specialized die head. |
| Vacuum Calibration | The hot pipe enters a vacuum sizing tank for water cooling and exact diameter calibration. |
| Haul-off | Caterpillar or belt haul-off machines pull the cooled pipe at a synchronized speed. |
| Cutting & Stacking | A cutter precisely cuts the pipe to length, and finished pipes are automatically discharged. |
Essential Auxiliary Machines for Pipe Manufacturing
A complete turnkey solution requires more than just the main extruder. We supply all the essential auxiliary machines needed to support your pipe manufacturing operations efficiently. Integrating the right auxiliary equipment ensures smooth operation, reduces material waste, and improves final product quality.
Our comprehensive setups include plastic mixers, which are essential for uniformly blending PVC powder, colorants, and stabilizers before extrusion. We also provide crushers and shredders to recycle defective pipes and scrap material, promoting sustainable production. To ensure rapid and uniform pipe solidification, our water chillers deliver consistent cooling water to the vacuum calibration tanks. Finally, our pipe belling machines automatically form sockets at the end of PVC or PE pipes for easy field connections.
Application Scenarios for Plastic Pipes
The machinery engineered by Zhongrui produces pipes that serve critical infrastructure and industrial sectors globally. Our water supply and drainage pipe solutions are heavily relied upon for municipal underground sewage systems. In the agricultural sector, our equipment manufactures durable pipes for large-scale irrigation. This includes our specialized composite infiltration irrigation pipe production line.
We also provide solutions for electrical conduits, telecommunication cables, and heavy-duty industrial gas transportation networks. For specialized flexible conduit needs, we offer advanced bellows production line equipment. Additionally, manufacturers looking to produce polyurethane tubing can rely on our PU pipe production line to complete their manufacturing portfolio.
Why Choose Our Plastic Pipe Extrusion Lines?
Selecting the right plastic extrusion machinery manufacturer is a crucial business decision. Qingdao Zhongrui Plastic Machinery Co., Ltd. overcomes buyer uncertainties by delivering concrete strengths and proven stability. We provide multimedia resources, including videos of our machines running flawlessly in client factories. This serves as visual proof of our manufacturing capability and equipment reliability.
Our experienced R&D team is backed by multiple patents, ensuring we maintain technological leadership in the extrusion industry. This expertise allows us to seamlessly handle customized requirements. We can adapt screw designs, die heads, and control systems to meet your specific production goals. With decades of international experience, we have successfully delivered turnkey solutions globally. By optimizing our manufacturing processes, we offer reasonable pricing that delivers exceptionally high value. Furthermore, our highly skilled technical team provides 7*24 hours after-sales service. From initial factory layout planning to operator training, we ensure your production lines run continuously.
Frequently Asked Questions (FAQ)
What materials can your plastic pipe production line process?
Our plastic pipe extrusion lines are highly versatile. They can process a wide variety of materials, including PE, PC, PVC, PP, PP-R, PET, PE-RT, and PA. We offer customized screw designs to ensure optimal plasticization for each specific material.
Do you provide installation and after-sales service for the pipe making machines?
Yes, we have a highly skilled technical team that provides comprehensive support. This includes machine installation, commissioning, and operator training. We also offer a 7*24 hours after-sales service to ensure your production runs smoothly without downtime.
Can the pipe extrusion line be customized according to our specific requirements?
Absolutely. Backed by our experienced R&D team and multiple patents, we specialize in handling customized requirements. We can tailor the pipe diameter, output capacity, and auxiliary equipment to match your exact factory needs.
How do you ensure the quality of your plastic pipe manufacturing equipment?
We rely on decades of international manufacturing experience and strict quality control processes. You can view videos of our machines running successfully in our clients' factories worldwide. This demonstrates our commitment to high value, stability, and quality.
Contact Us for Your Extrusion Solutions
Ready to upgrade your manufacturing capabilities? As a professional plastic pipe production line manufacturer, Qingdao Zhongrui Plastic Machinery Co., Ltd. is here to help. We provide tailored extrusion solutions that fit your exact requirements. Contact us today to request a quote and discuss your technical specifications. Let us show you how our high-performance machinery can drive your business forward.
+86-18561886575 (Mr.Wu) 
+8618561886575
238 Yangzhou West Road, Jiaozhou City, Qingdao City, Shandong Province