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Help CenterHDPE/PP Krah Pipe Machine for Spiral Corrugated Water Tank Pipe Extrusion
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Qingdao Yongke Machinery Co., Ltd. introduces the advanced HDPE/PP Krah Pipe Machine specifically designed for spiral corrugated water tank pipe extrusion. As a leading manufacturer since 2010 with a factory area of 10,000–30,000 square meters and annual export value of US$1–1.5 million, we pride ourselves on delivering robust, high-efficiency pipe production lines that meet international standards. Our Krah pipe machine enables the production of large-diameter, spiral corrugated pipes with excellent strength-to-weight ratio, ideal for water storage tanks, drainage systems, and underground infrastructure. With ISO9001, ISO14001, and OHSAS18001 certifications, you can trust our machine’s quality, safety, and environmental compliance.
This extrusion line is engineered to process both HDPE and PP materials, offering flexibility for different application requirements. The spiral corrugated design provides superior hoop stiffness and load-bearing capacity, making it perfect for large-volume water tank construction. Below, we outline the key features, technical specifications, and benefits that set our machine apart.
Key Features & Advantages
- Multi-material compatibility: Switch between HDPE and PP easily with minimal adjustment, expanding your product range.
- High-output extruder: Equipped with a specially designed barrier screw and high-torque gearbox for consistent melting and stable extrusion.
- Spiral corrugated forming unit: Precision-machined moulds create uniform corrugations with tight tolerances, ensuring pipe strength and leak-proof joints.
- Vacuum calibration & spray cooling: Ensures precise outer diameter control and rapid cooling for high-speed production without deformation.
- PLC automatic control: User-friendly touch screen interface allows real-time monitoring of temperature, speed, and pressure, reducing operator error.
- Energy-efficient design: Optimized heating and insulation reduce power consumption; variable frequency drives on motors lower energy usage.
- Durable construction: Heavy-duty frame, stainless steel cooling tank, and high-grade steel components ensure long service life even in continuous operation.
- Easy maintenance: Modular design with quick-access panels simplifies cleaning and part replacement, minimizing downtime.
Technical Specifications (Typical Model)
| Pipe Material | HDPE (PE80/PE100) or PP (PP-R/PP-H) |
| Pipe Diameter Range | 200 mm – 3000 mm (customizable) |
| Wall Thickness | 3 – 50 mm (depending on material and size) |
| Extruder (Main) | SJ-90/30 or SJ-120/30 with barrier screw; output up to 350 kg/h |
| Co-extruder (optional) | SJ-45/30 for color layer or marking |
| Spiral Mould | Customized for specific corrugation profile (e.g., U-shape, V-shape) |
| Cooling Tank Length | 6 – 12 meters, with multi-section spray nozzles |
| Haul-off & Cutter | Caterpillar haul-off with servo-driven cutter; length control ±2 mm |
| Total Installed Power | Approx. 150 – 300 kW (depending on configuration) |
| Control System | Siemens or Mitsubishi PLC with color touch screen |
Benefits for Your Production: This machine is specifically tailored for manufacturing spiral corrugated water tank pipes used in rainwater harvesting, septic tanks, chemical containment, and irrigation reservoirs. The corrugated structure provides up to 30% higher ring stiffness compared to smooth-walled pipes of the same weight, reducing material cost while maintaining performance. Additionally, the integrated vacuum sizing system ensures consistent internal diameter, critical for water-tight joints. With production speeds adjustable from 0.5 to 3.0 m/min, you can balance output and cooling quality based on pipe geometry.
Trusted by Global Markets: Our Krah pipe machines are exported to North America, South America, Eastern Europe, Southeast Asia, Africa, Oceania, the Middle East, and beyond. With a dedicated team of 51–100 employees and over a decade of experience, we offer comprehensive after-sales support, including on-site installation, training, and remote troubleshooting. The ISO management system ensures every machine undergoes rigorous quality checks before leaving our Qingdao port. We also provide customized solutions — from mould design to line layout — to match your unique production needs.
Call to Action: Upgrade your pipe production with a reliable, high-performance HDPE/PP Krah Pipe Machine from Qingdao Yongke Machinery. Contact our sales team today for a detailed quotation, technical drawing, or to arrange a factory visit. Let us help you build the pipes that build communities.
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