Bridge prestressed plastic corrugated pipeline production line production line and grouting pipe production line are shipped to customers in Chengdu, 

Qingdao Cuishi plastic machinery manufacturing plastic bellows plastic pe highway plastic pipe Bridge prestressed plastic bellows through steel stranded concrete with bridge building prestressed plastic bellows

Carbon Plastic Spiral Cod Tube / Pipe Making Extruder Machine

Plastic Machine    Extruder Machine

Pore-Forming Materials Applicable to Bridge Engineering Bridge Prestressed Pipe Underground Cable Threading Sheath Pipe Machine

Pipe Extrusion Line    Pipe Extrusion Machine

Prestressed Post Tension PE Carbon Spiral Pipe Production Line Plastic Extruder Tube Extrusion Machinery

Pipe Extrusion Line    Pipe Extrusion Machine

Corrugated Optic Duct / Cod Pipe Tube Making Single Screw Extrusion Extruder Machine

Pipe Production Line   Plastic Pipe Machine

Bridge Culvert Helix Pipe Extrusion Line 2000 Meter Length/HDPE Carbon Spiral Corrugated Pipe Extrusion Machine

Pipe Extrusion Line    Pipe Extrusion Machine

Cod Cable Protection Plastic Pipe Making Extrusion Machine

Pipe Extruder Machine   Pipe Machine

Flexible Pipe Plastic Extrusion Machine

PVC Garden Pipe Making Machine    PVC Soft Pipe Machine

Prestressed Pipe Extruder Plastic HDPE PE Pipe Building Material Manufacturing Machine

Plastic Machine   Pipe Extrusion Line

PE HDPE Carbon Spiral Reinforcing Pipe Equipment Plant Extruder Extrusion Line Production Making Machine

Pipe Extrusion Line    Pipe Extrusion Machine

High Pressure Suction Pipe Water Pump Flexible Tubing PU PVC Water Helix Hose Extruder Extrusion Machine

Plastic Extruder    Pipe Machine

Corrugated Optic Duct / Cod Spiral Pipe Tube Making Machine Production Mac

This product is mainly used for municipal, slope protection, high-speed bridge prestress tension plastic bellows, prestressed corrugated bridge pipe, in the pouring time to protect the steel strand from pollution, to ensure tension tension

Prestressed plastic bellows main specifications： 50  55 60  65  70  75  80  85 90 95 100 105 110 115 120mm    wall thickness 2.2-3cm

 Prestressed plastic bellows is a single-wall bellows extruded by a plastic extruder by high-density polyethylene (HDPE) for post-tensioned prestressed concrete structures as a perforated pipe with prestressed ribs. It is an ideal alternative to the original metal bellows in bridge and building construction. Plastic bellows are divided into two categories: round pipes and flat pipes, which are connected in actual use by various types of plastic connectors. The raw material for prestressed plastic bellows is HDPE. Its corrosion resistance is far better than that of metals, not afraid of acid and alkali corrosion, it does not corrode itself, and can effectively protect the prestressed ribs from corrosion.

Plastic bellows as a prestressed post-tensioning method of porous material is an important part of the prestressed system, for a long time prestressed engineering using metal bellows as a pore material, in order to overcome the shortcomings of metal bellows poor sealing, easy damage, easy to rust, large friction resistance, but also in order to provide an additional anti-corrosion barrier for prestressed ribs, it is recommended to use polyethylene or polypropylene made of plastic bellows as a revolutionary product with bonded post-tensioning method to improve the life of the structure