PVC-O pipe extrusion production line is composed by conical twin-screw extruder, mould, vacuum calibration tank, haul-off, cutter and staker etc. The PVC-O pipe extruder and haul-off adopt imported AC frequency control device, vacuum pump and haul-off motors adopt high-quality brand.
PVC-O pipe extrusion line adopts cutting-edge technology to manufacture plastic pipes. Leveraging its unique biaxial stretching process, it significantly reduces material costs for pipe production, achieving savings of over 70%. This advanced approach is gaining increasing popularity in today’s market.
PVC-O Pipe Extrusion Production Line Components
Extruder
Die Head
Vacuum Tank
Haul-off Unit
Cutter
Belling Machine
PVC-O Pipe Advantages
When compared to traditional PVC pipes, PVC-O pipes feature a significantly thinner wall thickness yet exhibit remarkable high-pressure tolerance. By utilizing a PVC-O pipe making machine, clients can achieve significant savings in material costs.
PVC-O pipes are manufactured through a bidirectional stretching process, utilizing a raw material composition that is largely similar to standard PVC-U pipes. However, the performance of PVC-O pipes is drastically superior to PVC-U pipes. The impact resistance of PVC-O pipes is enhanced approximately four times, while maintaining toughness even at temperatures of -20°C. Additionally, under the same pressure conditions, the wall thickness of PVC-O pipes is reduced by half compared to PVC-U pipes, resulting in a remarkable 47% savings in raw material usage. This thinner wall thickness also translates to increased water conveyance capacity, lighter pipes for easier installation, and lower transportation costs.
PVC-O Pipe Extrusion Line Technical Parameter:
Model
Pipe Range
Extruder
Haul-off Speed
Capacity
PVC-O 250
90-250mm
SJSZ65
1.5-8m/min
300kg/h
PVC-O 315
110-315mm
SJSZ75
0.5-5m/min
500kg/h
PVC-O 630
400-630mm
SJSZ92
0.1-2m/min
800kg/h
PVC-O Pipes Application:
High-Pressure Water Networks: Their resistance to fatigue and crack propagation ensures reliability in municipal and agricultural irrigation systems.
Gas Distribution: Enhanced safety due to exceptional leak resistance and long-term durability under pressure.
Industrial and Mining: Withstand abrasive environments and heavy loads, reducing maintenance costs.
PVC-O Pipe Production Line Video:
FAQ:
PVC-O (Biaxially Oriented PVC) pipe is a high-strength PVC pipe created by molecularly orienting PVC-U (unplasticized PVC) in both the hoop and axial directions. This orientation significantly improves its mechanical properties, including impact resistance, fatigue resistance, and hydraulic capacity, while allowing for thinner walls and material savings compared to traditional PVC-U pipes.
PVC-U is standard unplasticized PVC; PVC-M is modified for higher impact resistance; PVC-O undergoes biaxial orientation, offering superior strength, flexibility, and pressure rating.
The fundamental process is Extrusion-Stretch Orientation. A thick-walled PVC-U base pipe is first extruded. It is then precisely reheated to an “orientation temperature” below its melting point. Finally, it undergoes sequential biaxial stretching: first diametrically (hoop direction via internal pressure) and then axially (longitudinal direction via pulling).
Molecular alignment in both hoop (circumferential) and axial (longitudinal) directions, achieved by controlled expansion and stretching, enhancing mechanical properties.
Stretching aligns the long polymer chains and increases crystallinity. This distributes stress more efficiently throughout the material, eliminating weak points and significantly increasing toughness and resistance to crack propagation.
Changing pressure class typically requires changing the precursor pipe’s wall thickness and the stretch ratios. This involves significant tooling and process parameter changes, not just a simple speed adjustment.
The choice depends on your specific needs, including the type of plastic you will process, the desired final product, required production capacity (throughput), and your budget. A good manufacturer will offer consultation to help you choose the right machine and plastic extrusion line configuration.
The cost can vary significantly depending on the machine’s size, type (single vs. twin screw), production capacity, level of automation, and the inclusion of downstream equipment. It’s important to consider the total cost of ownership, including energy consumption, maintenance, and spare parts.
We will outline the process for delivery, installation at the customer’s facility, and commissioning to ensure the machine is set up and running correctly.
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