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PVC-O Extrusion Pipe Line

LIANSU uses online production technology to realize biaxial directional pipe manufacturing. The production line is equipped with specially designed and optimized professional equipment for the production of PVC-O pipes, including: extruder and pipe head, vacuum tank, haul off unit, oven, heating furnace, stretching device, cutting machine and online socket machine. The production line provides full-process integrated control system.

LIANSU offers production lines to produce pipes that comply with ISO 16422 or with required national standards. LIANSU production lines can be tailored to produce product, strength up to MRS 500. Pressure classes  up to PN25.  The lines can also be tailored to produce product at lower MRS and pressure classifications.

110-630

Size range(mm)

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Product Model

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CONFIGURATION

Parallel Twin Screw Extruder
Extruder adopts 36L/D parallel twin screw design, dedicate designed for efficient plasticization of PVC-O compound materials. Screw structure is optimized to improve mixing uniformity and ensure melt stability.
Parallel Twin Screw Extruder
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Pipe Head
Pipe head adopts a double compression structure design to ensure the melt viscosity and temperature more uniform, optimize flow channel distribution, effectively eliminate melt line, and improve the physical strength of the pipe. The temp. control of pipe head adopt independent zoned temperature control, pratical adjusting and control the thickness of pipe.
Pipe Head
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Vacuum Tank
Tank adopts a single-chamber design, equipped with a high-efficiency filtering device and precise water level and water temperature automatic control system to achieve continuous and stable shaping process.
Vacuum Tank
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Oven
Temperature control chamber adopts a combined design of hot air and infrared heating to ensure uniform temperature distribution along the circumference and wall thickness of pipe.
Oven
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Haul Off Unit
It adopts servo control, which is stable and efficient. Each section cooperates according to the process requirements, and has structural advantages such as synchronous clamping and double caterpillars reinforcement design, ensuring that the pipe can be stably transported and strongly pulled at different stages, meeting the needs of complex working conditions such as thin-wall and expansion molding, and effectively improving molding quality and production efficiency.
Haul Off Unit
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Orientation
The orientation expansion tool adopts air expansion mechanism to achieve "low friction expansion and stretching" between the inner wall of the pipe and tooling, and cooperates with the circulating water cooling system to quickly cool the forming while reducing friction resistance, improve the smoothness of the inner wall, and improve the consistency of the finished product.
Orientation
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Orientation
The orientation expansion tool adopts air expansion mechanism to achieve "low friction expansion and stretching" between the inner wall of the pipe and tooling, and cooperates with the circulating water cooling system to quickly cool the forming while reducing friction resistance, improve the smoothness of the inner wall, and improve the consistency of the finished product.
Orientation
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Planetary Cutting Unit
Servo-controlled planetary cutting, and the chamfering mechanism adopts centrifugal force balance principle, which especially ensures uniform chamfering of thin-walled pipe.
Planetary Cutting Unit
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Socketing
Online socketing machine adopts an integrated heating and socketing structure design, with a compact overall layout and a small footprint, which is conducive to production line integration and space utilization efficiency.
It adopts uniform heating mode, which can continuously maintain pipe end temperature during socket, so that the PVC molecular chain can be fully oriented in the axial and radial directions, avoiding shrinkage or deformation caused by temperature difference or stress.
Fast socketing to ensure consistency of size and shape, which improve the overall strength, toughness, impact resistance and fatigue resistance of pipe.
Socketing
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