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Large Diameter HDPE Casing Pipe Extrusion Line for PUF Pre-Insulated Pipelines
The PE Series Pre-Insulated Pipe Extrusion Line from Qingdao Huashida Machinery Co., Ltd. is designed with advanced German extrusion technology. It integrates extrusion, vacuum calibration, cooling, pulling, cutting, and stacking into one highly automated production system.
The line features strong extrusion capacity, stable operation, high production efficiency, and long service life, providing a reliable solution for PE pre-insulated pipe production.
Compared with traditional internal pressure calibration, vacuum calibration offers excellent pipe stiffness, higher pressure resistance, and a smoother, more uniform surface finish. This technology helps ensure consistent pipe quality and efficient production.
Specification
Applications
This production line is mainly used to produce HDPE outer sheath pipes for PUF (polyurethane foam) pre-insulated pipes.
Such pre-insulated pipes are widely used in: - Energy-saving heating pipe networks - Urban centralized heating systems - Trenchless pipeline engineering - Underground pre-insulated pipeline systems
Key Configurations
Main Extruder: SJ-90/33, SJ-120/33, SJ-150/33 Vacuum Sizing System: Ensures stable pipe dimensions, high roundness, and a smooth surface Cooling System: High-efficiency cooling to improve production efficiency Haul-off System: Stable traction to ensure continuous pipe production Cutting System: Automatic cutting, suitable for different length requirements Stacking System: Automatically completes the collection and stacking of finished pipes
Technical Specifications
Working pressure: up to 1.6 MPa
Water temperature: up to 130 °C (403 K)
Short-term temperature peak: 150 °C (423 K)
Pipe Structure (Pipe-in-Pipe Design) Inner carrier pipe: Steel or galvanized steel Middle layer: Polyurethane foam thermal insulation Outer jacket pipe: High-density polyethylene (HDPE) for underground installation or galvanized steel sheet for above-ground installation
Technical Specifications
Model
PE-365/760
PE-420/960
PE-850/1372
PE-960/1680
Main extruder
SJ-90/33
SJ-90/33
SJ-120/33
SJ-150/33
Pipe diameter (mm)
Φ365-960
Φ420-960
Φ850-1372
Φ960-1680
Capacity (kg/h)
550-700
550-700
700-900
800-1200
Installed power (kw)
360
380
440
580
Length (m)
35
36
40
48
Key Advantages
Higher reliability of heating pipeline systems Remote condition monitoring capability for early leak detection Accident prevention by timely maintenance Long service life with excellent mechanical strength and corrosion resistance
Company Profile
Qingdao Huashida Machinery Co., LTD is a manufacturer of series of plastic pipe machines, municipal pipe machines, pipe insulation & anticorrosion machines, and pipe jointing & anticorrosion materials, with over20 years of production experience.
Our Main Products HDPE jacket pipe for pre-insulated pipe Production Line (110-2000mm) Rigid pre-insulated pipe Production Line Flexible pre-insulated pipe (PERT) production line Steel pipe FBE/2LPE/3LPE anti-corrosion coating line Steel pipe derusting line PE pressure pipe/Water Gas supply pipe production line PP/PE plastic board/sheet/geomembrane production line NBR PVC Thermal insulation tube/plate production line Pipeline anti-corrosion materials and instruments: heat shrink joint coating sleeve, electro-fusion weldable joint sleeve, portable welding gun (extruder), PE PP welding rod We have been working with more than 400 overseas customers and exporting our products to Kazakhstan, Uzbekistan, Iran, Turkey, Russia, Nigeria and other countries.
Company Details
Bronze Gleitlager
,
Bronze Sleeve Bushings
and
Graphite Plugged Bushings
from Quality China Factory
Business Type:
Manufacturer
Year Established:
2003
Total Annual:
3000000-5000000
Employee Number:
100~200
Ecer Certification：
Verified Supplier
1. company profileQingdao Huashida Machinery Co., Ltd. is located in Qingdao High & New Technology Industrial Area- Qingdao Huashida industrial Park, covers an area of about 4000 square meters. We have tens of years experience in plastic pipe, sheet, and board extrusion lines, and pipe joints a...
1. company profileQingdao Huashida Machinery Co., Ltd. is located in Qingdao High & New Technology Industrial Area- Qingdao Huashida industrial Park, covers an area of about 4000 square meters. We have tens of years experience in plastic pipe, sheet, and board extrusion lines, and pipe joints a...
