HDPE Outer Casing Protection Pipe Pre-Insulated Pipe Manufacturing Machinery for District Heating
Pipe diameter range: 110-2200mm
HDPE Jacket Pipe Extrusion Line 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
Pipe Usage
HDPE jacket pipe is out case of thermal insulating pipe, which is widely used in central heating, oil, nature gas and other industrial area.
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.
Die-Head
Die-head is mainly composed of mandril, neck mold, spiral body, cover, die-head body, bolts, and heating rings.
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 cutting
It adopts the blade punching principle to realize no-dust cutting.
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.