Energy Saving HDPE Double Wall Corrugated Pipe Machine for Culvert Drainage
The Huashida energy saving HDPE double wall corrugated pipe machine is a fourth-generation corrugated pipe production line, independently developed and optimized by Qingdao Huashida for PE and PP double wall corrugated pipes. Compared with conventional plastic corrugated pipe machines, it offers low energy consumption, high output, simple operation and reliable online flaring. It has earned strong recognition from pipe manufacturers in Russia, Egypt and other markets.
Built around full-circumferential pressure water cooling, this HDPE pipe making machine reaches over 3 times the capacity of conventional air cooled or ordinary water cooled equipment. A high-efficiency single screw extruder, fixed cooling pipelines and a precision cutting system make this double wall pipe machine a cost-effective plastic pipe extrusion line for culvert, stormwater and sewage drainage pipe projects. ABB inverters and PLC control keep the HDPE pipe extruder line stable during continuous production.
Key Features & Advantages
- Full-Circumferential Pressure Water Cooling: Continuous cooling spreads heat evenly across the whole mould zone, overcoming the limits of air cooling and spot water cooling. Over 3 times higher capacity suits mass production on this corrugated pipe machine.
- Fixed Cooling Pipeline: Permanently connected cooling pipes remove repeated disassembly during mould changeover. This cuts commissioning time, prevents leakage and pressure drop failures, and lowers energy and maintenance cost.
- Low-Pressure Extrusion System: The Huashida PE/PP single screw extruder uses a grooved barrel and buffered forced feeding for steady conveying and lower main motor power. The shortened die flow path reduces extrusion pressure and wear on screw and die head.
- Precision Full-Surround Cutting: High-strength alloy blades and a high-precision tracking system give smooth, burr-free, distortion-free cuts with minimal dimensional error.
- Online Flaring: Pipe ends are flared on the pipe extrusion machine line, simplifying socket jointing for drainage pipelines.
- Quick Size Changeover: Slip-on connection and plane sealing ring allow fast size changes without removing tubes.
This HDPE PP PVC double wall corrugated pipe production line adopts a unique two-part synchronized manufacturing workflow to guarantee complete I-Beam structured-wall integrity for high-performance Weholite-type hollow wall pipes, trusted by pipe manufacturers and EPC contractors across the Middle East, Russia, Central Asia and Africa for municipal sewage and stormwater drainage projects.
Process 1-Profile Extrusion
Raw Material (HDPE/PP/PVC) → Vacuum Feeding → High-Torque Single Screw Extrusion → Square Tube Die Head Forming → Vacuum Calibration → Spray Cooling → Traction
High-precision profile extrusion delivers dimensionally stable base profiles, laying a solid foundation for subsequent spiral winding and forming of heavy-duty structured-wall drainage pipes.
Process 2-Spiral Winding & Welding
Profile Pipe → Secondary Melt Adhesive Extrusion → Spiral Winding & Forming (Weholite I-Beam structure) → Water Cooling → Precision Automatic Cutting → Inspection & Packing
This synchronized dual-process system maintains reliable ring stiffness (SN4/SN8/SN16), consistent I-Beam geometric structure, and robust inter-layer welding bonding strength. The final HDPE structured wall spiral corrugated pipes fully comply with international specifications for buried municipal sewage discharge, urban stormwater culverts and industrial wastewater pipeline installation.
Equipment Composition
This full-set HDPE PP PVC double wall corrugated pipe production line is a complete plastic pipe extrusion line built from two core synchronized processing units and an integrated PLC control system. It is widely supplied to pipe manufacturers and municipal infrastructure projects across the Middle East, Russia, Central Asia and Africa.
Profile Extrusion Unit
Includes a high-torque single screw extruder (SJ-65 / 80 / 90, model-configured), square-tube I-Beam die head, stainless-steel vacuum calibration table, spray cooling tank and heavy-duty haul-off machine. This HDPE pipe extruder line section outputs dimension-stable I-Beam structured profiles for making HDPE, PP and PVC Weholite-style corrugated drainage pipes.
Spiral Forming Unit
Composed of a secondary melt-adhesive extruder, a Weholite-spec spiral winding machine (winding speed 0.3-12 m/h) and an automatic precision cutting system. This double wall corrugated pipe machine unit shapes complete hollow double-wall pipes under precisely adjusted winding tension for municipal sewage and stormwater drainage pipe production.
Central PLC Control System
Full-set centralized control synchronizes profile extrusion and spiral winding. It keeps ring stiffness stable, wall thickness even and finished-pipe quality reliable during long-term continuous mass production on this corrugated pipe production line, including large-diameter structured-wall drainage pipes.
Product Applications
Pipes manufactured by this HDPE spiral pipe production line (Weholite I-Beam structured wall corrugated pipe machine) are the preferred solution for modern municipal and industrial drainage infrastructure. Pipe manufacturers and EPC contractors use this plastic pipe extrusion line across the Middle East, Russia, Central Asia and Africa.
Municipal Sewage Drainage
Urban sewage collection networks, main sewer trunk lines and municipal wastewater drainage systems. With SN8 / SN16 high ring stiffness and a certified 50-year underground service life, HDPE structured wall sewer pipes made on this HDPE pipe making machine replace ageing concrete sewer pipes in city-wide sewage renovation projects.
Stormwater Management
Large-diameter stormwater drainage culverts, urban flood-control channels and rainwater retention pipeline systems. This corrugated pipe production line covers the full Ø200-3000mm range, from small branch collectors to heavy-duty main stormwater trunk culverts.
Transport Infrastructure & Road Culverts
Large-size underground utility conduits, HDPE culvert pipes, road culverts and highway drainage crossings. The robust I-Beam structured wall of pipes from this double wall corrugated pipe machine gives outstanding ground load bearing capacity for buried heavy-duty pipelines.
Industrial Wastewater Transport
Chemical fluid conveyance and industrial wastewater management pipelines. HDPE / PP / PVC corrugated drainage pipes resist acids, alkalis and salts, so they run reliably for the long term in aggressive underground industrial soil conditions.
Aged Pipeline Retrofitting & Rehabilitation
Replacement for worn-out concrete, clay and cast-iron municipal sewage drainage networks. The rubber-ring socket joint design of pipes from this HDPE pipe extruder line fits existing infrastructure layouts and supports trenchless installation for urban pipeline upgrades.
Founded in 2003, Qingdao Huashida Machinery Co., Ltd. is a leading manufacturer of plastic pipe extrusion lines, double wall corrugated pipe production lines, anti-corrosion coating lines and pre-insulated pipe systems, with over 20 years of R&D and manufacturing experience. With 70% of production exported to Europe, the Americas and the Middle East, Huashida provides CE and ISO certified solutions for global drainage and industrial pipeline projects.
Core Product Range:
- HDPE Double Wall Corrugated Pipe Production Lines
- HDPE PP PVC Double Wall Corrugated Spiral Pipe Lines (Ø200-3000mm)
- 3LPE/FBE Steel Pipe Anti-Corrosion Coating Lines
- Turnkey Pre-Insulated Pipe Production Lines
- HDPE Jacket Pipe Casing Extrusion Lines
- Cross-Linked PE Heat Shrink Sleeve Production Lines
- Geomembrane & Plastic Sheet Extrusion Systems
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