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Help CenterDouble Wall Corrugated Pipe Extrusion Line HDPE Spiral Drain Pipe Equipment
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Qingdao Yongke Machinery Co., Ltd. is proud to present our advanced Double Wall Corrugated Pipe Extrusion Line specifically designed for producing HDPE spiral drain pipes. As a manufacturer with over a decade of experience since 2010, we combine German engineering principles with Chinese manufacturing efficiency to deliver reliable, high-output equipment. Our extrusion line ensures uniform wall thickness, excellent ring stiffness, and smooth inner surface, making it ideal for underground drainage, sewage systems, and stormwater management projects. With a factory spanning 10,000-30,000 square meters, we have the capacity to meet bulk orders while maintaining strict quality control.
Key Features and Technical Specifications
High-Efficiency Extrusion System: Equipped with a specially designed screw and barrel made of 38CrMoAlA alloy steel, hardened and nitrided for extended service life (up to 3 years continuous operation). The forced feeding section ensures stable material flow even with recycled HDPE content up to 30%.
Advanced Double Wall Corrugated Molding: Our patented mold cooling system reduces cycle time by 15% compared to conventional designs. The forming machine uses vacuum forming technology to create precise corrugated outer walls and smooth inner walls simultaneously.
PLC Touch Screen Control: Siemens brand PLC with a 10-inch color touch screen allows operators to monitor and adjust parameters such as temperature (5 zones), screw speed, haul-off speed, and cooling water flow in real time. Auto fault diagnosis reduces downtime.
Energy-Saving Drive: All motors are IE3 premium efficiency class, integrated with inverter drives to reduce power consumption by up to 20% under variable load conditions.
Versatile Pipe Production: Our line can produce double-wall corrugated pipes with nominal diameters from 200mm up to 1200mm (optional 1600mm upon request). Wall thickness can be adjusted from 2mm to 15mm according to SN4/SN8/SN12.5 ring stiffness classes.
Complete Auxiliary Equipment: Includes automatic loading system (with dehumidifier for HDPE), spiral cooling tank (length: 12m-24m), caterpillar haul-off (frequency control), planetary cutter (automatic length measurement), and pipe stacker.
| Parameter | Value |
|---|---|
| Extruder Model | SJ-75/33 to SJ-150/33 |
| Screw Speed (max) | 120 rpm |
| Heating Zones | 5-7 zones |
| Total Installed Power | 80-220 kW |
| Machine Dimensions (L×W×H) | 35m × 5m × 3.5m (approx.) |
| Pipe Length | 1m to 6m (adjustable by cutter) |
Benefits for Your Business:
Reduced Operating Costs: High output of up to 500 kg/h combined with energy-saving motors minimizes your per-meter production cost. Our line can process both virgin and recycled HDPE, allowing you to source cheaper raw materials without sacrificing quality.
Superior Pipe Quality: The double-wall structure provides high ring stiffness (up to SN12.5) while using 30% less material than solid wall pipes of same stiffness. Smooth inner wall reduces frictional losses, improving hydraulic performance.
Easy Maintenance: Modular design allows quick mold change (within 2 hours) for different pipe diameters. All wear parts are standard and available from local suppliers.
Compliance with International Standards: Our pipes meet ASTM F2648, EN 13476, and GB/T 19472.2 standards (standard variants available). We provide full documentation for export certification.
Trust and Reliability – Backed by Qingdao Yongke Machinery
Since 2010, Qingdao Yongke Machinery has delivered over 200 extrusion lines to 40+ countries, including North America, Europe, Southeast Asia, and Africa. In 2023 alone, we exported equipment worth over US$1.5 million. Our factory is ISO9001, ISO14000, and OHSAS18001 certified, ensuring consistent quality control from raw material inspection to final testing. Each line undergoes 48-hour continuous trial run before shipment, and we provide free training for your operators (onsite or via video).
Frequently Asked Questions (FAQ)
Q: What is the minimum order quantity for this extrusion line?
A: We accept single line orders. However, for cost savings, we recommend ordering at least one complete line plus mold sets for 2-3 pipe diameters.Q: Can this line produce pipes with different ring stiffness classes?
A: Yes, by adjusting the wall thickness through haul-off speed and vacuum level, you can produce SN4, SN8, SN12.5, and custom stiffness grades.Q: How long does delivery and installation take?
A: Standard delivery is 45-60 days after order confirmation. Installation and commissioning at your site takes 10-15 working days, plus operator training.Q: What spare parts should we keep in stock?
A: We recommend having one set of heating elements, a spare screw tip, seals, and electric spare parts (fuses, contactors). We provide a recommended spare parts list with the manual.Q: Do you offer a warranty?
A: Yes, a 2-year warranty on mechanical parts and 1 year on electrical components. We provide lifetime technical support via email/phone.Q: Can the line be customized for larger diameters?
A: Yes, we can design molds and die heads for DN1600 pipes. Please contact our sales team for a customized quotation.Q: What type of raw material is suitable?
A: HDPE (PE80 or PE100) with melt flow index (MFI) 0.3-0.7 g/10min. Recycled HDPE can be used when mixed with virgin material at a ratio not exceeding 30%.Q: How do you handle after-sales service?
A: We have a dedicated after-sales team. For overseas clients, we provide remote assistance via video call and can dispatch engineers upon request (cost covered by client).
We invite you to contact Qingdao Yongke Machinery for a detailed proposal tailored to your production needs. With our competitive pricing, proven technology, and global service network, you can trust us to be your long-term partner in drainage pipe production.
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