Product Brief
Prestressed Spiral Pipe Production Line is automated extrusion molding equipment specially for manufacturing plastic spiral corrugated pipes matched with prestressed concrete structures. Using HDPE and PP as raw materials, it completes continuous production including raw material pretreatment, melting plasticization, spiral forming, cooling shaping and traction cutting. The equipment produces prestressed spiral corrugated pipes with smooth inner wall and spiral corrugated outer wall, available in circular and flat types. It is the dedicated plastic spiral pipe extrusion equipment for prestressed engineering supporting material manufacturers.
Product Specifications
- Applicable Raw Material: HDPE (High-density Polyethylene), PP (Polypropylene)
- Finished Product: prestressed spiral corrugated pipe, circular type & flat type
- Production Process: Raw material pretreatment → Melting and plasticizing → Spiral forming → Cooling and shaping → Traction cutting
- Pipe Performance: Acid & alkali resistance, anti-aging, good sealing, low friction coefficient
- Function: Protective sleeve for prestressed steel strands
Main Advantages
- Compatible with HDPE and PP raw materials, supports simultaneous production of circular and flat prestressed spiral corrugated pipes.
- Stable spiral forming technology, finished pipes own smooth inner wall and uniform corrugated outer wall.
- Automated continuous production, high efficiency and stable product quality.
- The produced pipes feature excellent corrosion resistance and anti-aging capacity, guarantee the safety of prestressed structures.
- Reasonable layout of the whole line, easy operation and convenient maintenance.
Application & Usage
Finished prestressed spiral corrugated pipes act as core protective sleeves for prestressed steel strands. They are widely applied in bridges, railways, highways, high-rise buildings and other prestressed engineering projects, effectively improving the durability and safety of prestressed concrete structures.
Why Choose Us
- Professional manufacturer of plastic spiral pipe extrusion equipment with mature extrusion molding technology.
- Customized molds to produce spiral pipes of different specifications.
- Strict factory inspection before delivery to ensure long-term stable operation.
- Complete after-sales service including installation, commissioning and technical training.
- Long-term supply of wearing spare parts to reduce production downtime.
Production Process
Raw material pretreatment → Melting and plasticizing → Spiral forming → Cooling and shaping → Traction cutting → Finished prestressed spiral corrugated pipe collection
Working Raw Material
HDPE (High-density Polyethylene) and PP (Polypropylene) plastic particles. The raw materials provide outstanding anti-aging and acid-base resistance, so the finished pipes can keep stable performance inside concrete for a long time.




