HDPE Pre-Insulation Jacket Pipe Extrusion Line for Oil Gas Piping
Pipe diameter range: 110-2200mm
HDPE Jacket Pipe Extrusion Line for Pre-Insulated Pipes is high-efficient with high speed and energy saving for producing HDPE thin wall pipe, which is used as a protective cover of PU foam thermal Pre-insulated Pipe according to international standard. It primarily consists of a core steel pipe, a polyurethane (PU) foam insulation layer, and a protective plastic outer casing, among other components.
Key Features:
Utilizes a vacuum calibrating technique.
Ensures smooth internal and external walls.
Offers a long service life with excellent anti-corrosion properties.
High-efficiency extruder gives larger output, stable performance.
For example
SJ-75/33---250-350kg/h
SJ-120/33---700-900kg/h
SJ-150/33---800-1200kg/h
The HDPE jacket serves as the outer protective casing of pre-insulated pipes and is widely used in district heating, oil and natural gas transportation, and other industrial applications.
High-efficiency single screw extruder
The screw is with barrier & mixing head; the barrel is a new model with slotting (channel). Both guarantee the good jellification, large output and stable performance of the extruder.
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Die-Head
Die-head is mainly composed of mandril, neck mold, spiral body, cover, die-head body, bolts, and heating rings.
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Vacuum Calibration Tank
The vacuum calibration tank is mainly composed of a frame, stainless steel tank, vacuum system, spray cooling system, position adjustment device. Spray nozzles spray cooling water from all directions on pipe surface to cool down the pipe promptly.![]()
Haul-off Machine
The haul-off machine is mainly composed of a driving device, track, clamping structure, adjusting system, side plate and foundation bed. Haul-off caterpillars are driven by AC motor with frequency conversion control to adapt to different extrusion speeds.![]()
Chipless Planetary cutter
It adopts the blade punching principle to realize no-dust cutting. High qualified alloy steel blade; planetary cutting to get smooth edge without plastic scrap; High precision cutting; PLC control
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Control system
ABB frequency converter or EUROTHERM speed controller
Japan RKC temperature controller
SIEMENS AC contactors
A controlling system can be designed according to customers' requirements. ![]()