HDPE Hollow Spiral Pipe Extrusion Machine Structured Wall Pipe Equipment Krah Pipe Line
Product Spotlights
As a leading manufacturer with over a decade of expertise in plastic machinery, Qingdao Yongke Machinery Co., Ltd. proudly presents our advanced HDPE Hollow Spiral Pipe Extrusion Machine. Engineered for the high-volume production of durable structured wall pipes using the proven Krah technology, this equipment is the cornerstone for modern drainage, sewage, and culvert systems worldwide. Our commitment to innovation, backed by ISO9001, ISO14000, and OHSAS18001 certifications, ensures that every machine delivers exceptional reliability, operational efficiency, and long-term value for your investment. We understand the critical demands of pipe production, and our equipment is designed to meet them head-on, helping you produce superior quality pipes that stand the test of time and environment.
This integrated production line transforms high-density polyethylene (HDPE) granules into robust, lightweight, and corrosion-resistant structured wall pipes. The core of the system is the precision extrusion and spiral winding process, which creates a hollow-wall profile with exceptional ring stiffness and a high strength-to-weight ratio. This design is ideal for non-pressure applications such as stormwater drainage, sanitary sewers, and cable protection conduits. The machine's modular construction allows for flexibility in production, enabling quick changeovers for different pipe diameters and wall structures to match specific project requirements.
Key Technical Features & Advantages:
- Precision Extrusion System: Equipped with a high-torque, energy-efficient extruder featuring a specially designed screw and barrel for optimal melting and homogenization of HDPE material, ensuring consistent pipe quality and material savings.
- Advanced Spiral Winding & Fusion: Utilizes a computer-controlled winding head that precisely layers the extruded profile into a spiral. The hot-melt fusion welding of each layer creates a monolithic, leak-proof pipe structure with no weak points.
- Intelligent Control Center: A centralized PLC with a user-friendly touch-screen HMI allows for precise control over all parameters—extrusion temperature, winding speed, fusion pressure, and cooling—ensuring repeatable production and minimal waste.
- Robust Structural Design: The main frame is constructed from heavy-duty steel, providing exceptional stability and vibration damping during high-speed operation, which is crucial for maintaining dimensional accuracy.
- Efficient Cooling & Calibration: A multi-stage water cooling and vacuum calibration system ensures the pipe profile is set quickly and accurately, maintaining perfect roundness and the designed wall structure.
- Customizable Configuration: The line can be tailored with options such as automatic material feeding systems, online wall thickness monitoring, pipe cutting saws, and handling equipment to create a complete, turnkey solution.
Technical Specifications Table:
| Parameter | Description / Range |
| Suitable Pipe Material | HDPE (PE80, PE100) |
| Producible Pipe Diameter | 200 mm to 3000 mm (Customizable) |
| Extruder Screw Diameter | Available in various sizes (e.g., 90mm, 120mm) |
| Main Motor Power | Customizable based on output requirement |
| Control System | PLC + Touch Screen Human-Machine Interface |
| Cooling Method | Water Spray / Vacuum Tank Cooling |
| Production Line Length | Approximately 30-50 meters (Layout dependent) |
Frequently Asked Questions (FAQ):
-
Q: What is the main advantage of spiral-structured wall pipes produced by this machine?
A: The hollow spiral structure provides excellent ring stiffness (resistance to external loads) while using less material compared to solid-wall pipes, resulting in a lightweight, cost-effective, and easy-to-install product perfect for drainage and sewer applications. -
Q: Can this machine produce pipes for high-pressure applications?
A: This equipment is primarily designed for structured wall pipes used in non-pressure or low-pressure applications like gravity flow sewers and drainage. For pressure-rated pipes, different extrusion technology is typically required. -
Q: How is the production speed determined and can it be adjusted?
A: Production speed depends on pipe diameter, wall thickness, and profile complexity. The PLC control system allows operators to easily adjust the winding and haul-off speeds to optimize output for different product specifications. -
Q: What kind of after-sales support and training do you provide?
A: We offer comprehensive support including installation guidance (onsite or remote), detailed operational training for your technicians, a supply of spare parts, and ongoing technical consultation to ensure smooth production. -
Q: Is the machine compatible with recycled HDPE material?
A: Yes, the extrusion system can process a certain percentage of high-quality recycled HDPE granules blended with virgin material. We recommend consulting with our engineers to determine the optimal formulation for your desired pipe properties. -
Q: What is the typical lead time for delivery and installation?
A: Lead time varies based on machine configuration and order queue. Standard lines typically have a lead time of several months. We provide a detailed project schedule upon order confirmation, with professional installation teams available. -
Q: How energy-efficient is this extrusion line?
A: The line incorporates energy-saving designs such as high-efficiency drive motors, optimized heating zones with insulation, and intelligent control that reduces idle power consumption, contributing to lower operational costs.
With a proven track record of exporting to diverse markets across North America, South America, Europe, Asia, and Africa, Qingdao Yongke Machinery has established itself as a reliable partner in the global plastics machinery industry. Our 10,000-30,000 square meter manufacturing facility, staffed by a dedicated team of 51-100 professionals, is equipped to build heavy-duty, precision machinery. We don't just sell equipment; we deliver production solutions backed by robust international certifications. If you are looking to enhance your pipe manufacturing capabilities with a machine that combines proven Krah technology with modern automation and reliable performance, contact us today to discuss your project requirements and receive a detailed proposal.
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