Municipal Drainage Project
Municipal Drainage Project Scenarios Introduction:
Complete extrusion line solutions for municipal drainage infrastructure — from high-speed double wall corrugated pipe systems to large-diameter HDPE hollow wall winding pipe production lines. Engineered for durability, efficiency, and global compliance.
Deerma Machine specializes in advanced plastic pipe extrusion equipment for municipal drainage, stormwater management, sewage systems, and infrastructure piping projects. Our production lines support HDPE, PP, and PVC materials with diameters ranging from 50mm to 3500mm, delivering industry-leading ring stiffness, corrosion resistance, and production efficiency. Whether you need high-speed corrugated pipe manufacturing for branch networks or large-diameter hollow wall winding systems for trunk mains, we provide turnkey solutions with intelligent automation and global service support.
Modern municipal drainage systems demand pipe products that combine high ring stiffness, chemical corrosion resistance, long service life, and cost-effective installation. Double wall corrugated pipes and hollow wall winding pipes have become the dominant solutions for urban stormwater collection, sewage transport, road drainage, and industrial wastewater discharge worldwide.
Deerma Machine offers two complementary production technologies to cover the full spectrum of municipal drainage requirements:
·High-Speed Double Wall Corrugated Pipe Extrusion Lines — Optimized for ID50mm to ID1500mm diameters with production speeds up to 20 m/min, ideal for high-volume branch drainage networks, building sewage, and cable protection.
·HDPE Large Diameter Hollow Wall Winding Pipe Extrusion Lines — Engineered for Φ300mm to Φ3500mm diameters with multi-layer co-extrusion and spiral winding technology, designed for main trunk lines and large-scale stormwater management.
Both systems support HDPE (High-Density Polyethylene) as the primary material, with the corrugated line additionally compatible with PP (Polypropylene) and PVC (Polyvinyl Chloride) to meet diverse regional standards including GB/T 19472.1-2019, European EN standards, and American ASTM specifications.
Solution A:
High-Speed Double Wall Corrugated Pipe Extrusion Line
The Deerma Machine High-Speed Double Wall Corrugated Pipe Extrusion Line represents the industry-leading solution for manufacturing HDPE, PP, and PVC double wall corrugated pipes with inner diameters from ID50mm to ID1500mm. Featuring a modular design philosophy and five patented technical innovations, this production line delivers unmatched operational efficiency, specification flexibility, and product quality consistency for municipal drainage pipe manufacturers.
1.Product Specifications & Model Range
Our high-speed corrugated pipe extrusion lines are available in four standard models, each optimized for specific diameter ranges and application scenarios:
For customers with standard speed requirements, we also offer the DEM-110, DEM-250, DEM-500, and DEM-800 normal-speed models with extended module pair configurations for enhanced cooling and forming stability.
2.Ring Stiffness Grades & Material Compatibility
Ring stiffness, measured in kN/m², is the core quality indicator for corrugated drainage pipes, representing the pipe's ability to withstand external soil and traffic loads. Our production lines support the full range of international ring stiffness grades:
Material switching between PE and PP is achieved simply by changing raw material feedstock — no mechanical modification required. PVC outer diameter series (OD110, OD160, OD315) are also fully supported for specific market requirements.
3.Five Major Technical Innovations
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1. Fixed Center Height Design
The fixed center height architecture eliminates height adjustment when changing pipe specifications. Only one screw needs loosening for complete mold changeover. All module widths and installation dimensions are standardized, achieving 100% universal module interchangeability across the full diameter range.
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Upgrading from traditional single-gear to double-gear drive ensures simultaneous force application on both upper and lower sliding seats. This eliminates uneven force distribution, extends rail and module lifespan, and maintains stability even at maximum linear speeds of 10–20 m/min.
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The tractor signal originates directly from the cutting machine, ensuring perfect synchronization at the cutting moment and significantly reducing miscutting rates. The tractor provides additional forward thrust, reducing molding machine load and preventing over-current shutdowns.
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Fully sealed pressure water cooling modules completely eliminate cooling water leakage and equipment rust. The upgraded double-row roller chain circulation system ensures stable pipeline flow and prevents socket tilting, enhancing both cooling efficiency and product pass rates.
2. Double Gear Independent Track Drive
3. Dedicated Tractor System
4. Closed-Loop Pressure Water Cooling
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Each pipe is weighed in real-time during production, continuously monitoring the meter-weight indicator to ensure product quality consistency. All data is fully traceable, facilitating quality management, process optimization, and meeting high-end customer traceability requirements.
5. Intelligent Stacker Weighing System
4.Production Line Composition
A complete double wall corrugated pipe extrusion line consists of the following integrated equipment units:
Extruder: High-efficiency single-screw or twin-screw extruder with automatic temperature control for uniform plasticization and stable output. Supports PE, PP, and PVC processing.
Corrugated Mold: Precision-designed forming mold with dedicated sizing sleeve ensuring accurate corrugation geometry and compliant ring stiffness.
Molding Machine: Core forming unit with double-gear drive and independent track design, achieving linear speeds of 7.5–20 m/min depending on model.
Spray Cooling Box: Provides rapid and uniform cooling and shaping for extruded pipes, ensuring dimensional stability.
Tractor: Dedicated traction system synchronized with cutter signals, providing stable traction force while protecting the molding machine from overload.
Cutting Machine: Precision fixed-length cutting with signal feedback to the tractor, ensuring cutting synchronization and minimal scrap.
Turning Frame / Stacker: Automatic turning and stacking with integrated weighing system for orderly product collection and real-time quality monitoring.
5.Global Specification Compliance
Our corrugated pipe extrusion lines manufacture pipes compliant with multiple international standards:
6.Delivery & Service
Delivery Lead Time: Peak Season: 3–6 months | Off Season: 1–3 months
With cumulative delivery of 36 high-speed production lines (9 domestic, 27 international) to markets across Europe, the Americas, Australia, Russia, and Southeast Asia, Deerma Machine provides comprehensive installation, commissioning, and after-sales service support worldwide.
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Solution B:
HDPE Large Diameter Hollow Wall Winding Pipe Extrusion Line
The HDPE Large Diameter Hollow Wall Winding Pipe Extrusion Line is specifically engineered for manufacturing large-diameter HDPE hollow-wall spiral pipes ranging from Φ300mm to Φ3500mm. This system is the optimal choice for municipal trunk drainage, large-scale sewage systems, stormwater management infrastructure, and industrial or agricultural piping projects requiring exceptional structural performance and long-term durability.
1.System Specifications & Production Parameters
The production line is configured in three standard extruder combinations, each matched to specific diameter and output requirements:
2.Key System Advantages
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1. Versatile Large-Diameter Production
Manufactures HDPE hollow-wall spiral pipes from Φ300mm to Φ3500mm within a single integrated system. Suitable for drainage, sewage transport, stormwater retention, and heavy-duty industrial piping applications..
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Produces pipes with high ring stiffness, superior impact resistance, and excellent chemical corrosion protection. Reinforcement ribs can be formed during extrusion to further increase pipe stiffness for demanding burial conditions..
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Optimized extrusion and winding systems deliver stable, high-speed output with precise wall thickness control. Multi-layer co-extrusion capability enables functional layer integration (UV protection, anti-aging, color coding).
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Central PLC control with touch-screen HMI operation enables accurate process monitoring, easy parameter setup, recipe storage, and minimal manual intervention. Real-time monitoring of temperature, pressure, and line speed ensures consistent output.
2. Exceptional Structural Performance
3. High-Efficiency Extrusion Technology
4. Smart PLC Automation
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Each pipe is weighed in real-time during production, continuously monitoring the meter-weight indicator to ensure product quality consistency. All data is fully traceable, facilitating quality management, process optimization, and meeting high-end customer traceability requirements.
5. Energy-Saving Design
3.Working Principle & Production Process
The hollow wall winding pipe manufacturing process follows a sequential seven-stage workflow:
Material Feeding & Preparation: HDPE raw material is automatically fed into the extruder hopper. Optional additives including color masterbatch, UV stabilizers, and anti-aging agents are precisely dosed for enhanced pipe performance in exposed or aggressive environments.
Extrusion & Melting: The material is heated, melted, and homogenized in the extruder barrel using precision-engineered screw designs. Stable melt pressure and excellent plasticizing performance ensure uniform material properties throughout the pipe wall.
Spiral Profile Forming: The molten material is extruded into a continuous strip profile, which is guided into the spiral winding unit. During this stage, reinforcement ribs can be integrated to increase structural stiffness for high-burial-depth applications.
Hollow Wall Winding: The profile is spirally wound around a rotating mandrel, forming the hollow-wall structure. Precise temperature control and synchronized rotational speed ensure strong molecular bonding between successive layers, creating a monolithic pipe structure.
Cooling & Shaping: The formed pipe passes through water spray or air cooling systems to stabilize dimensions and maintain structural integrity. Controlled cooling prevents warping and ensures compliance with diameter and ovality tolerances.
Cutting to Length: Once the target diameter and length are achieved, an automatic cutting system accurately cuts the pipe to customer-specified lengths with minimal end-face deviation.
Final Inspection & Packaging: Finished pipes undergo comprehensive quality checks for dimensional accuracy, ring stiffness verification, visual appearance, and wall thickness uniformity before labeling, bundling, and shipment preparation.
4.Material & Performance Characteristics
HDPE (High-Density Polyethylene) is the primary material for hollow wall winding pipes, offering:
Chemical Corrosion Resistance: HDPE is inert to most acids, alkalis, and salts, making it ideal for sewage and industrial wastewater applications.
Impact Resistance: Maintains toughness at temperatures as low as -40°C, suitable for cold climate installations.
Lightweight Construction: Significantly lighter than concrete or metal alternatives, reducing transportation and installation costs.
Leak-Free Joints: Heat-fusion welding creates monolithic joints with zero leakage risk.
Long Service Life: Design life exceeding 50 years under standard burial conditions.
Technical Comparison & Selection Guide
Choosing between corrugated pipe and hollow wall winding pipe technology depends on project diameter requirements, production volume targets, material preferences, and infrastructure scale. The following comparison matrix provides a structured decision framework:
Selection Recommendations
Choose Solution A (Corrugated Pipe) if your project requires diameters under 800mm, high daily production volumes, frequent specification changes, or multi-material flexibility (PE/PP/PVC). This is the optimal choice for municipal branch drainage, residential sewage systems, road and highway drainage networks, and cable protection conduit manufacturing.
Choose Solution B (Hollow Wall Winding) if your project requires diameters exceeding 600mm, especially in the 1000–3500mm range for main trunk lines, large stormwater management systems, or industrial wastewater discharge. This technology delivers superior structural performance for deep-burial and high-load applications.
Combined Deployment: Many municipal drainage contractors operate both systems to cover the complete infrastructure spectrum — corrugated lines for distribution networks and hollow wall winding lines for collection mains and interceptor sewers.
Municipal Drainage Applications & Success Cases
Deerma Machine drainage pipe extrusion lines have been deployed in infrastructure projects across six continents, with a cumulative delivery of 36 high-speed corrugated lines and numerous large-diameter winding systems. Our equipment supports the following municipal drainage applications:
Global Market Presence
Deerma Machine high-speed double wall corrugated pipe production lines and hollow wall winding systems have gained worldwide recognition, with equipment operating in:
Europe: Compliant with EN standards for municipal drainage and stormwater management
Americas: Serving North and South American infrastructure markets with ASTM-compatible specifications
Australia: Delivering AS-standard pipes for urban drainage and agricultural applications
Russia & CIS: PP high-stiffness pipes for cold-climate sewage and drainage systems
Southeast Asia: High-volume HDPE corrugated pipe production for rapidly urbanizing regions
China Domestic: Full GB/T 19472.1-2019 compliance for national municipal engineering standards
Why Choose Deerma Machine for Drainage Projects
Technology Leadership
Deerma Machine holds multiple industry-first patents including fixed center height architecture and double gear independent track drive systems. Our R&D team continuously advances extrusion technology to improve production efficiency, reduce energy consumption, and enhance product quality consistency.
Universal Module Design
Our full-series equal-width module design enables one set of modules to cover multiple pipe specifications, delivering significantly higher equipment return on investment. This universal interchangeability reduces spare parts inventory and simplifies maintenance planning.
Global Service Network
With 36 high-speed line delivery experience across domestic and international markets, Deerma Machine maintains a worldwide service coverage network. Our technical team provides on-site installation, commissioning, operator training, and ongoing technical support.
Quality Assurance Systems
Closed-loop pressure water cooling eliminates leakage and rust, while intelligent weighing monitoring ensures fully traceable pipe quality. Every production line undergoes rigorous factory acceptance testing before shipment.
Fast Delivery Cycles
Our optimized supply chain and manufacturing processes enable 1–3 month off-season delivery cycles, helping customers achieve rapid production startup and early market capture. Peak season timelines remain competitive at 3–6 months.
Flexible Configuration Options
Full model coverage from DEM-150H to large-diameter winding systems, with PE/PP/PVC multi-material compatibility, ensures we can meet diverse municipal drainage market demands regardless of regional standards or project specifications.
Frequently Asked Questions
What is the difference between SN8 and SN16 ring stiffness?
Ring stiffness (kN/m²) measures a pipe's resistance to external pressure. SN8 (8 kN/m²) is standard for most municipal drainage applications with moderate burial depths. SN16 (16 kN/m²) is required for deep burial, heavy traffic loads, or unstable soil conditions. Our corrugated pipe lines support switching between SN4, SN8, SN10, SN12.5, and SN16 by replacing modules and sizing sleeves.
Can one extrusion line produce both PE and PP pipes?
Yes. For Solution A (corrugated pipe), switching between PE and PP requires only changing the raw material feedstock — no mechanical modification is needed. PP pipes offer higher ring stiffness (SN8–SN16) and superior high-temperature performance, making them ideal for cold climates like Russia. PVC processing is also supported for specific outer diameter series.
What is the maximum pipe diameter your equipment can produce?
Solution A (corrugated) covers ID50mm to ID1500mm inner diameter. Solution B (hollow wall winding) covers Φ300mm to Φ3500mm. For diameters above 1500mm, the hollow wall winding technology is the recommended and proven manufacturing method.
How long does specification changeover take?
Solution A features fixed center height technology — no height adjustment is required when changing pipe diameters. Only one screw needs loosening to complete mold changeover, significantly reducing downtime compared to traditional machines that require complex re-adjustment. All module widths and installation dimensions are fully standardized.
What after-sales support do you provide?
We provide comprehensive support including on-site installation and commissioning, operator and maintenance technician training, spare parts supply with global logistics, remote technical diagnostics, and annual maintenance service contracts. Our 36-line global delivery experience ensures proven service capability in all major markets.
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