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As a leading manufacturer based in Qingdao, China, Qingdao Yongke Machinery Co., Ltd. has dedicated over a decade to producing high-performance extrusion equipment. Our HDPE Krah Pipe Spiral Corrugated Pipe Extrusion Line is engineered to deliver robust, large-diameter pipes used in stormwater drainage, sewage systems, and industrial applications. With a factory spanning 10,000–30,000 square meters and a team of 51–100 professionals, we combine advanced German technology with strict quality control to offer a reliable, cost-effective solution for pipe manufacturers worldwide.
This extrusion line is specifically designed for producing Krah-type spiral corrugated pipes from HDPE, featuring a unique spiral winding process that ensures excellent ring stiffness and optimal material distribution. The machine integrates a high-efficiency extruder, specialized corrugator, cooling system, and automatic cutting unit, all controlled by a user-friendly PLC system. Whether you need pipes for civil engineering, mining, or agricultural drainage, this line provides consistent output with minimal waste.
Key Features & Technical Specifications
- Superior Ring Stiffness: The spiral corrugated structure achieves SN4 to SN16 grades (or higher upon request), meeting international standards for buried pipe strength.
- High Production Efficiency: With an output of up to 600 kg/h (depending on pipe size), the line can produce pipes from 200mm to 3000mm inner diameter.
- Energy-Saving Extruder: Equipped with a force-feed design and optimized screw geometry, reducing energy consumption by up to 15% compared to conventional models.
- Automatic Winding Control: The PLC system precisely controls the winding speed, pitch, and corrugation depth, ensuring uniform wall thickness and smooth inner surface.
- Quick Mold Change: Tooling is designed for fast swap between pipe diameters, minimizing downtime during production changes.
- Durable Construction: Main components are made from hardened alloy steel, with long service life and low maintenance requirements.
- Comprehensive Safety Features: Emergency stops, overload protection, and safety guards comply with OHSAS18001 standards.
Technical Parameters (Sample Configurations)
| Parameter | Model A (200-800mm) | Model B (800-1800mm) | Model C (1800-3000mm) |
|---|---|---|---|
| Extruder Screw Dia. | 120mm | 150mm | 180mm |
| Max Output (kg/h) | 350 | 500 | 650 |
| Line Speed (m/min) | 0.5–2.0 | 0.4–1.8 | 0.3–1.5 |
| Installed Power (kW) | 180 | 280 | 400 |
| Cooling Method | Spray Water + Air |
Customer Benefits: By choosing our HDPE Krah Pipe Extrusion Line, you gain a competitive edge through lower raw material consumption (up to 10% material savings due to optimized wall design), reduced labor costs (one operator can manage the line), and the ability to produce pipes that meet international standards like EN 13476 and ASTM F2306. The line is also customizable with options such as a vacuum sizing tank, automatic stacker, and online quality inspection system.
Company Credibility & After-Sales SupportQingdao Yongke Machinery Co., Ltd. has been a trusted manufacturer since 2010, with an annual export value of US$1 Million – US$1.5 Million. Our products have been shipped to over 20 countries across North & South America, Europe, Southeast Asia, Africa, and Oceania. We hold ISO9001, ISO14000, and OHSAS18001 certifications, reflecting our commitment to quality, environment, and occupational health. Our 51–100 skilled employees ensure rigorous testing for every machine before shipment. We provide a 12-month warranty, free technical documentation, and remote/on-site installation guidance. With a convenient location near Qingdao Port, we offer fast delivery (30–45 days) and responsive spare parts supply. Invest in a machine that combines reliability, efficiency, and long-term value. Contact us today for a quotation, detailed drawing, or to arrange a factory visit. Let Qingdao Yongke be your partner in HDPE pipe production success. Frequently Asked Questions (FAQ)1. What is the minimum order quantity for this extrusion line? 2. Can the line produce pipes with different wall thicknesses? 3. What raw material specifications are required? 4. How long does installation and commissioning take? 5. What is the power supply requirement? 6. Do you provide spare parts? 7. Can the line produce non-circular pipes? 8. What certifications does the machine have? |
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