Product Description:
The Huashida-developed polyurethane sprayed polyethylene thermal
winding preinsulation pipe production line is comprised of three
main parts: the external shot blasting and derusting collector
production line, the polyurethane spraying production line, and the
PE winding production line. This production line boasts numerous
national patents and has been appraised by third-party evaluators
to have an advanced technology level of 5, which is considered a
leading standard in the country. It has also been recognized as the
first set of technical equipment in Shandong Province.
The production line utilizes a continuous spraying process,
offering high automation, rapid production efficiency, reduced raw
material usage, improved foaming and closed cell rates, lower water
absorption, trinity molding, and enhanced overall performance. The
resulting products are characterized by their low carbon footprint
and environmental friendliness, delivering both economic and social
advantages.
Features:
Environmental Dust Control System
Our intelligent shot blasting system features sequential
self-locking operation with variable frequency energy-saving
motors. The diameter-adjustable sand volume, integrated air-wash
cleaning, and quick-change specifications are complemented by
three-stage dust removal that exceeds environmental standards.
Large-Diameter Pipe Production
The heavy-duty spiral conveyor enables continuous polyurethane
spraying and polyethylene winding, offering high-efficiency
operation with significant energy savings. This system is specially
designed for large-diameter insulated pipe production while
eliminating separate handling equipment needs.
Automated Production Line
Full automation is achieved through smart sensors including pipe
loading/unloading detection, speed-adaptive tracking, and precision
detachment confirmation systems, ensuring uninterrupted operation
with minimal downtime.
Efficient Spray Application
The high-speed online spraying system maintains consistent
temperature with stable medium-frequency power supply, reducing
grid impact by 40%. Continuous operation with automatic pipe
joining minimizes material waste while ensuring uniform coating
thickness.
High-Performance Extrusion
Energy-optimized extruders with mechanical clamping deliver
superior output. Automated features include triple-layer
anti-corrosion cutting and touchless pipe ejection for accelerated
production cycles.
Precision End Processing
Our multi-process machining center achieves tight tolerances
(±0.5mm) and perfect edge finishing, consolidating multiple
operations into one station for dimensional accuracy and angular
precision.
This integrated system represents the next generation of insulated
pipe manufacturing technology, combining environmental compliance
with superior production efficiency and product consistency.
Technical Parameters:
| Steel pipe diameter (mm) | Thickness of insulation pipe (mm) | Diameter of outer protective tube (mm) | Minimum wall thickness of outer protective layer (mm) |
| 500 | 30-60 | 580-640 | 5.6 |
| 630 | 30-60 | 710-772 | 6.6 |
| 710 | 30-60 | 790-850 | 7.2 |
| 800 | 30-60 | 885-950 | 7.9 |
| 900 | 30-60 | 980-1054 | 8.7 |
| 1000 | 30-60 | 1090-1155 | 9.4 |
| 1100 | 30-60 | 1190-1250 | 10.2 |
| 1200 | 40-100 | 1316-1436 | 11 |
| 1400 | 50-100 | 1538-1638 | 12.5 |
| 1500 | 50-100 | 1638-1738 | 12.5 |
Applications:
District Heating Systems
Main pipelines for urban central heating networks
Thermal energy transmission lines for district energy stations
Retrofitting projects of heating networks
Oil & Gas Transportation
Crude oil & refined product pipelines
Long-distance natural gas transmission lines
Oilfield gathering pipelines
Chemical Industry
Chemical medium transportation pipelines
Cryogenic fluid transfer (e.g., LNG)
Corrosive fluid delivery systems
Municipal Engineering
District cooling system pipelines
High-temperature hot water supply networks
Steam pipeline systems
Special Applications
Pipeline insulation in extreme cold regions
Direct buried underground pipeline projects
River-crossing and other challenging terrains
FAQ:
Q: What is the brand name of this Polyurethane Spraying Foam
Preinsulated Steel Pipe Making Machine?
A: The brand name of this machine is Huashida.
Q: What is the model number of this machine?
A: The model number of this machine is 508-1620.
Q: Where is this machine produced?
A: This machine is produced in Qingdao.
Q: What certifications does this machine have?
A: This machine is certified with CE and ISO9001:2008.
Q: What are the payment terms accepted for this machine?
A: The accepted payment terms for this machine are L/C, T/T, DP,
Western Union, and Paypal.
