Project Type
Complete Extrusion Line
Machines
Dosing & Feeding Equipment, Extruder, Haul-Off Machine, Pipe Cutting Machine, Pipe Extrusion Die Head, Pipe Stacker, Spray Cooling Tank, Vacuum Calibration Tank
Material
PE/HDPE
Application
Agricultural Irrigation, Drainage & Sewage, Gas Distribution, Industrial Pipes, Water Supply
Region
Asia-Pacific, Europe, Latin America, Middle East and Africa, North America
QTech-Machinery supplied a complete Φ110–Φ315mm PE/HDPE three-layer pipe extrusion production line for a customer planning to manufacture medium and large diameter plastic pipes for water supply, drainage, irrigation, and industrial pipeline applications.
Although many buyers also search for a PVC pipe extrusion production line, this project focuses on PE/HDPE pipe extrusion technology, especially for customers who need a flexible production system for pressure and non-pressure pipe markets. The production line is suitable for manufacturing HDPE water pipes, HDPE drainage pipes, PE irrigation pipes, and other infrastructure pipe products.
The complete system covers material feeding, drying, extrusion, co-extrusion, pipe forming, vacuum calibration, spray cooling, servo haul-off, chipless cutting, and automatic pipe stacking. With a designed output of 350–650kg/h, the line provides a practical balance between production capacity, pipe quality, automation level, and long-term operational efficiency.
Project Type：PE/HDPE Three-Layer Pipe Extrusion Line
Supplier：QTech-Machinery
Pipe Diameter Range：Φ110–Φ315mm
Pipe Structure：Three-Layer Co-Extrusion
Application：Water Supply, Drainage, Irrigation, Industrial Pipe
Output Capacity：350–650kg/h
Installed Power：Approx. 360kW
Control System：PLC + Touch Screen
Standard Power：380V / 50Hz / 3 Phase
Customization：Available according to local power and pipe standards
The customer required a complete pipe extrusion solution capable of producing medium and large PE/HDPE pipes with stable dimensions, reliable wall thickness control, and smooth continuous operation.
The main requirement was not only to purchase individual machines, but to build a complete production system suitable for commercial pipe manufacturing. The customer needed the line to support multiple applications, including water pipe production, drainage pipe production, and irrigation pipe production.
Customer’s Main Requirements：
Pipe Diameter Φ110–Φ315mm
Pipe Material PE / HDPE
Pipe Structure Three-layer co-extrusion
Application Range Water, drainage, irrigation, industrial pipe
Output Target 350–650kg/h
Automation：Automatic feeding, control, cutting, and stacking
Pipe Quality：Stable diameter, roundness, and wall thickness
Cutting Method：Clean cutting with no chips
Operation：Easy control and stable continuous production
Future Flexibility：Adaptable to different pipe specifications
Key Purchasing Concerns
The customer focused on the following points before confirming the project:
1. Whether the line could cover the required Φ110–Φ315mm pipe range
2. Whether the extrusion output could match commercial production needs
3. Whether three-layer co-extrusion could be achieved with stable material distribution
4. Whether the pipe cooling length was enough for medium and large diameter pipes
5. Whether the haul-off system could maintain stable traction
6. Whether the cutter could provide clean cutting without dust or chips
7. Whether the control system was easy for operators to use
8. Whether the supplier could provide a complete line instead of separate machines
9. Whether the line layout could fit the customer’s workshop
10. Whether technical support could be provided for installation and commissioning
QTech-Machinery provided a complete Φ110–Φ315mm PE/HDPE three-layer pipe extrusion line based on the customer’s pipe size, output target, application range, and factory conditions.
The solution was designed to support continuous production from raw material feeding to finished pipe stacking. The main extrusion system uses an SJ75/38 single screw extruder for high-efficiency PE/HDPE plasticizing. An SJ50/33 auxiliary extruder supports three-layer co-extrusion, while an SJ25/25 color line extruder provides pipe marking capability.
For downstream processing, the line includes a three-layer pipe die head, 9m vacuum calibration tank, two 8m spray cooling tanks, four-caterpillar servo haul-off machine, chipless cutting machine, and automatic pneumatic stacker.
Complete Process Flow：
Step 1-Vacuum Loader：Automatic raw material feeding
Step 2-Hopper Dryer：Material drying and preparation
Step 3-SJ75/38 Main Extruder：Main PE/HDPE extrusion
Step 4-SJ50/33 Auxiliary Extruder：Co-extrusion layer supply
Step 5-SJ25/25 Color Line Extruder：Pipe stripe marking
Step 6-Meter Weight Control System：Output and material control
Step 7-Three-Layer Pipe Die Head：Pipe forming
Step 8-Vacuum Calibration Tank：Pipe sizing and roundness control
Step 9 Spray Cooling Tanks Pipe cooling and stabilization
Step 10 Servo Haul-Off Machine Stable pipe traction
Step 11 Chipless Cutting Machine Clean fixed-length cutting
Step 12 Automatic Pneumatic Stacker Finished pipe collection
1. Automatic material feeding for the main extruder and auxiliary extrusion system.
2. QX-900 and QX-300 models selected according to different material consumption requirements.
3. Stable feeding capacity to match the 350–650kg/h production range.
4. Separate feeding support for the main extruder and co-extrusion units.
5. Closed material transfer process to help keep the production area cleaner.
6. Reduced manual labor compared with manual material loading.
7. Consistent material supply to reduce extrusion fluctuation.
8. Suitable for PE/HDPE pellets and masterbatch feeding.
9. Compact structure for easy installation beside the extrusion system.
10. Designed for continuous pipe production, especially for medium and large diameter pipes.
1. QX-150 and QX-50 hopper dryers configured for different extruder capacities.
2. Material pre-drying function before PE/HDPE enters the screw barrel.
3. Supports stable plasticizing by improving material condition.
4. Helps reduce moisture-related surface defects during pipe extrusion.
5. Improves color line quality when masterbatch is used.
6. Matched with vacuum loaders for automatic feeding and drying integration.
7. Suitable for continuous production, reducing material preparation interruptions.
8. Independent drying units for main and auxiliary material streams.
9. Simple operation and maintenance for production workers.
10. Helps improve final pipe appearance and processing consistency.
1. SJ75/38 model selected for Φ110–Φ315mm pipe production.
2. 75mm screw diameter suitable for medium and large pipe extrusion.
3. 38:1 L/D ratio for improved plasticizing and melt uniformity.
4. Output range of 300–600kg/h, depending on pipe size and formulation.
5. 160kW AC motor providing strong extrusion power.
6. 0–180rpm screw speed range for flexible production adjustment.
7. ABB inverter control for stable speed regulation.
8. Designed for PE/HDPE pipe material processing.
9. Stable melt pressure to support consistent wall thickness.
10. Main extrusion unit matched with downstream cooling and haul-off capacity.
1. SJ50/33 model used for auxiliary layer extrusion.
2. 50mm screw diameter suitable for co-extrusion material supply.
3. 33:1 L/D ratio for reliable plasticizing of the auxiliary layer.
4. Output range of 30–80kg/h for layer thickness control.
5. 22kW motor power for stable co-extrusion operation.
6. Designed to work with the three-layer die head.
7. Supports different material distribution plans according to pipe requirements.
8. Suitable for multi-application pipe production, including water and drainage pipes.
9. Helps improve product flexibility for customers serving different markets.
10. Integrated into the line control system for coordinated operation.
1. SJ25/25 model designed for color line extrusion.
2. Output range of 1–5kg/h for controlled stripe material supply.
3. Suitable for pipe identification stripes on HDPE water or utility pipes.
4. Works with color masterbatch for visible marking lines.
5. Compact structure for easy integration beside the die head.
6. Stable low-output extrusion for narrow marking lines.
7. Supports different stripe colors according to pipe application.
8. Improves finished pipe appearance and classification.
9. Useful for water, drainage, irrigation, and industrial pipe identification.
10. Matched with the three-layer pipe forming system for synchronized production.
1. Online meter weight monitoring for pipe production control.
2. Helps stabilize pipe weight per meter during continuous extrusion.
3. Supports material cost control by reducing unnecessary material waste.
4. Improves wall thickness consistency when properly adjusted.
5. Useful for different pipe diameters and wall thicknesses.
6. Works together with extruder output and haul-off speed control.
7. Helps operators monitor production conditions more clearly.
8. Supports production of water, drainage, and irrigation pipes with stable specifications.
9. Improves quality control during long production runs.
10. Adds automation value to the complete extrusion line.
1. Three-layer pipe die head designed for Φ110–Φ315mm pipe production.
2. Suitable for PE/HDPE material processing.
3. Supports multi-layer pipe structure for flexible product design.
4. 40Cr die material for strength and durability.
5. Layer distribution design matched with the main and auxiliary extruders.
6. Stable melt flow channel to support uniform pipe wall formation.
7. Compatible with color line co-extrusion.
8. Designed for different pipe wall thickness requirements.
9. Matched with vacuum calibration sleeve and downstream equipment.
10. Helps produce pipes for water, drainage, irrigation, and industrial applications.
1. 9m tank length for stable sizing of Φ110–Φ315mm pipes.
2. Vacuum calibration function for pipe diameter control.
3. Ovality correction support to improve pipe roundness.
4. Wear-resistant copper sizing sleeve for reliable pipe shaping.
5. Vacuum pump configuration of 5.5kW × 2.
6. Water pump configuration of 5.5kW × 2.
7. Cooling water circulation system for early-stage pipe cooling.
8. Suitable for medium and large diameter HDPE pipes.
9. Helps maintain pipe dimensional stability before spray cooling.
10. Designed to coordinate with line speed and haul-off control.
1. Two sets of 8m spray cooling tanks included in the line.
2. Total spray cooling length of 16m for medium and large pipe production.
3. Each tank equipped with 7.5kW water pump.
4. Uniform spray cooling around the pipe surface.
5. Helps reduce pipe deformation after calibration.
6. Supports stable production of thick-wall pipes within the design range.
7. Matched with Φ110–Φ315mm pipe diameter requirements.
8. Designed for continuous cooling under commercial production conditions.
9. Works with vacuum tank and haul-off system for stable pipe formation.
10. Cooling water requirement: ≤20℃ and ≥0.3MPa recommended.
1. Four-caterpillar structure for stable contact with medium and large pipes.
2. Servo control system for accurate speed regulation.
3. Traction force of 18000N for reliable pipe pulling.
4. Haul-off speed range of 0.1–8m/min.
5. Four 1.5kW servo motors for synchronized operation.
6. Suitable for Φ110–Φ315mm PE/HDPE pipes.
7. Stable pulling helps control pipe wall thickness.
8. Adjustable speed for different pipe diameters and thicknesses.
9. Works with meter weight control system for production consistency.
10. Designed for long-term continuous pipe extrusion operation.
1. Chipless cutting design for clean pipe cutting.
2. Suitable for PE/HDPE pipe cutting within Φ110–Φ315mm range.
3. Maximum cutting wall thickness up to 30mm.
4. 2.2kW cutting motor for stable cutting operation.
5. Reduces cutting dust and chips compared with traditional cutting.
6. Improves workshop cleanliness during pipe production.
7. Supports fixed-length cutting according to production requirements.
8. Works with haul-off speed and control system for synchronized cutting.
9. Suitable for water, drainage, and irrigation pipe production.
10. Helps improve finished pipe end quality.
1. Automatic pneumatic stacking system for finished pipe collection.
2. 6m stacker length suitable for common pipe section handling.
3. Reduces manual pipe unloading work.
4. Improves production line automation level.
5. Works after chipless cutting machine for continuous discharge.
6. Suitable for Φ110–Φ315mm medium and large pipes.
7. Helps protect pipe surface during collection.
8. Improves workshop production efficiency.
9. Requires compressed air supply of ≥0.6MPa.
10. Designed for continuous operation with the complete extrusion line.
1. Delta 7-inch touch screen for user-friendly operation.
2. Delta PLC control system for main line control.
3. Siemens PLC for cutting machine control.
4. ABB inverter used for main extrusion speed control.
5. Centralized control interface for key production parameters.
6. Supports extruder, haul-off, and cutting coordination.
7. Easy parameter adjustment for different pipe sizes.
8. Helps improve operation stability and repeatability.
9. Standard power supply: 380V / 50Hz / 3 Phase.
10. Electrical customization available according to customer local standards.
Φ110–Φ315mm PE/HDPE Three-Layer Pipe Extrusion Production Line
After installation and commissioning, the Φ110–Φ315mm PE/HDPE three-layer pipe extrusion line was tested under production conditions. The line was able to run through the complete process from material feeding, extrusion, pipe forming, vacuum calibration, spray cooling, haul-off, cutting, and automatic stacking.
Based on the available project information, the production line demonstrated the following results:
1. The main extrusion system operated together with the auxiliary co-extruder and color line extruder.
2. The three-layer pipe die head formed PE/HDPE pipes within the required Φ110–Φ315mm production range.
3. The vacuum calibration tank and spray cooling tanks supported pipe sizing, cooling, and shape stabilization.
4. The four-caterpillar servo haul-off machine provided continuous pipe traction during trial operation.
5. The chipless cutting machine completed pipe cutting without a conventional chip-producing cutting process.
6. The automatic pneumatic stacker received finished pipe sections after cutting.
7. The line completed the intended continuous production workflow during commissioning.
The commissioning confirmed that the supplied equipment could operate as an integrated PE/HDPE pipe extrusion production line. Further long-term performance data, such as actual continuous output records, energy consumption, rejection rate, or extended production stability, would require additional production evidence from the customer’s ongoing operation.
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