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Plastic HDPE Krah Pipe Extrusion Machine for Spiral Winding Corrugated Pipe Production
Product Spotlights
This Krah pipe extrusion machine produces large-diameter spiral wound corrugated HDPE pipes (200–3000 mm) with high ring stiffness and low material consumption. Features energy-efficient drives, PLC control, and customizable mandrels. Backed by ISO certifications and 15 years of experience from Qingdao Yongke Machinery, it offers reliable performance for drainage and sewage projects worldwide.
Negotiable
MOQ: 1 Piece (Price negotiable depending on order volume and customization)
Key Specifications
Get Latest Price
model:
YK-Krah Series (customizable)
pipe diameter range:
200mm – 3000mm
output capacity:
200 – 600 kg/h (depending on model)
Payment & Shipping
Payment Methods:
Port of Shipment:
China
Delivery Detail:
Delivery time depends on order quantity.
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model
YK-Krah Series (customizable)
pipe diameter range
200mm – 3000mm
output capacity
200 – 600 kg/h (depending on model)
screw diameter
Φ90 – Φ150 mm
installed power
150 – 350 kW
voltage
380V/50Hz, 3-phase (customizable on request)
material
HDPE, PP, PE (optional)
certification
ISO9001, ISO14000, OHSAS18001
color
customer specified
application
large diameter drainage, sewage, water supply, ventilation pipes
Welcome to Qingdao Yongke Machinery Co., Ltd. – a leading manufacturer specialized in plastic pipe extrusion solutions since 2010. Our Plastic HDPE Krah Pipe Extrusion Machine for Spiral Winding Corrugated Pipe Production is engineered to produce large-diameter, high-strength spiral wound pipes using premium HDPE raw materials. With a factory spanning 10,000–30,000 square meters and a dedicated team of 51–100 employees, we deliver reliable and cost-effective machinery that meets international quality standards. Backed by ISO9001, ISO14000, and OHSAS18001 certifications, our Krah pipe extrusion line is trusted by clients across North America, South America, Europe, Asia, Africa, and Oceania. This machine combines advanced spiral winding technology with robust construction, ensuring seamless production of corrugated pipes for drainage, sewage, and water supply projects.
Key Features & Advantages
- High-Efficiency Spiral Winding Technology – The patented Krah process continuously wraps extruded profiles onto a rotating mandrel, forming a strong helical structure without seams. This minimizes material stress and ensures uniform wall thickness.
- Wide Pipe Diameter Range – Capable of producing pipes from 200 mm up to 3000 mm, ideal for large-scale infrastructure projects. Custom mandrel sizes are available upon request.
- Flexible Material Compatibility – Designed primarily for HDPE, but also supports PP, PE, and other thermoplastics. This gives you the freedom to adapt to different project specifications.
- Energy-Efficient Drive System – Equipped with AC frequency inverters and servo motors that reduce power consumption by up to 20% compared to traditional systems.
- User-Friendly PLC Control – A Siemens or Mitsubishi PLC with touch-screen interface allows precise adjustment of temperature, speed, and winding parameters. Real-time monitoring ensures consistent product quality.
- Robust Construction, Low Maintenance – The main frame is made of heavy-duty steel with anti-corrosion coating. All wear parts are easily accessible and replaceable, extending machine life.
Technical Specifications
| Model | YK-Krah-600 | YK-Krah-1200 | YK-Krah-3000 |
| Pipe Diameter (mm) | 200 – 600 | 400 – 1200 | 800 – 3000 |
| Output (kg/h) | 200 – 400 | 300 – 500 | 400 – 600 |
| Screw Diameter (mm) | Φ90 | Φ120 | Φ150 |
| Installed Power (kW) | 150 | 220 | 350 |
| Wall Thickness Range (mm) | 2 – 8 | 3 – 12 | 4 – 20 |
Production Process & Quality Control
- Raw Material Drying – An integrated dehumidifying dryer ensures HDPE moisture content below 0.05%, preventing bubbles and defects.
- Extrusion & Profile Forming – The single-screw extruder melts and homogenizes the resin, then forces it through a specially designed die to create a flat strip profile.
- Spiral Winding & Cooling – The hot profile is continuously wound onto a rotating, water-cooled mandrel. Multiple winding layers fuse together under controlled pressure and temperature to form a strong monolithic pipe.
- Cutting & Chamfering – A synchronized traveling saw cuts the pipe to desired lengths (standard: 6m, 12m, or custom). Chamfering units prepare pipe ends for smooth jointing.
- Online Quality Monitoring – Laser sensors measure wall thickness and ovality in real time. Any deviation triggers instant alarm, allowing operators to adjust parameters immediately.
Benefits for Your Business
- Lower Material Costs – The spiral winding method uses up to 30% less material than conventional extrusion for the same pipe strength, reducing your raw material expenses.
- High Production Efficiency – Continuous winding eliminates downtime for die changes, achieving output rates up to 600 kg/h. Perfect for large-volume projects.
- Excellent Pipe Performance – The corrugated outer wall and smooth inner bore provide superior ring stiffness (up to SN16 kN/m²) and low friction, ideal for buried applications.
- Easy Installation & Jointing – Pipes can be connected using electrofusion couplings or gasket bell-and-spigot joints, ensuring leak-free networks.
- Customizable Solutions – We offer tailored mandrel sizes, die geometries, and downstream equipment to match your specific pipe dimension and production volume requirements.
Trust & After-Sales Support
As a factory with 15 years of experience and an annual export value of US$1–1.5 million, Qingdao Yongke Machinery has delivered hundreds of Krah pipe lines worldwide. Our ISO9001-certified quality management system ensures every machine undergoes rigorous testing before shipment. We provide one-year warranty, free spare parts kit, and round-the-clock technical support. Our English-speaking engineers can assist with installation, commissioning, and training on-site or via video. Located in Qingdao Port, we offer competitive freight rates and fast delivery. Contact us today to discuss your project and receive a tailored quotation!
Frequently Asked Questions
- Q1: What raw materials can this machine process?
- A: It primarily processes HDPE (high-density polyethylene), but can also handle PP (polypropylene) and PE blends. For other materials, please consult our engineers for compatibility testing.
- Q2: What is the minimum pipe diameter I can produce?
- A: The smallest standard diameter is 200 mm. However, with a custom mandrel, we can achieve diameters as small as 100 mm for specialized applications.
- Q3: How long does it take to change the pipe diameter?
- A: Changing the mandrel and adjusting downstream equipment typically takes 2–3 hours for a skilled operator. We provide detailed manuals and training to minimize downtime.
- Q4: Is the machine CE certified?
- A: CE certification is available as an optional add-on. Our standard machines comply with ISO and OHSAS standards. Please specify your requirement when ordering.
- Q5: What is the power consumption per ton of pipe produced?
- A: The average energy consumption is around 250–350 kWh per ton of HDPE pipe, depending on wall thickness and line speed. Our energy-efficient drives help lower operational costs.
- Q6: Do you provide installation and training services?
- A: Yes, we offer on-site installation supervision and operator training (fee may apply). Alternatively, we can provide detailed video tutorials and remote guidance.
- Q7: What is the delivery time for a complete line?
- A: Typical lead time is 45–60 days after receiving the down payment. Rush orders may be possible depending on our production schedule.
- Q8: Can I get a sample pipe for testing before purchasing?
- A: We can produce sample pipes using your specified dimensions and material. Samples can be shipped to you for quality evaluation. Custom charges apply.
Send Inquiry to This Supplier
1Yr
Business Type
Manufacturer
Year Established
2010
Factory Size
10,000-30,000 square meters
Annual Export Value
US$1 Million - US$1.5 Million
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