PUR Foam HDPE Jacket Pipe Extrusion Line for District Heating Pre-Insulated Pipe

The 110-2200mm HDPE Jacket Pipe Extrusion Line is a high-precision automated extrusion system specially designed for manufacturing HDPE protective casing pipes for PU foam pre-insulated pipelines. Widely applied in district heating networks, chilled water distribution and buried thermal insulation pipeline projects across Russia, Central Asia, the Middle East and Africa, this full-range HDPE casing production line covers 7 standard models to meet both high-temperature heating (up to 120°C) and low-temperature chilled water pipeline production demands.

Equipped with advanced dust-free planetary cutting technology and precision vacuum calibration system, the equipment eliminates plastic dust and cutting debris, ensuring ultra-clean production environment. All finished HDPE jacket pipes fully comply with international standards EN253, EN14241 and GB/T29047, featuring accurate dimensional tolerance, smooth inner/outer surface and excellent mechanical protection performance for long-term buried pre-insulated pipe operation.

Perfectly matched with HDPE casing + PU foam integrated pre-insulated pipe production workflow, this HDPE jacket pipe extrusion line supports stable production capacity of 250-1350kg/h with ±0.1mm ultra-precise wall thickness tolerance. Uniform pipe dimension guarantees tight and reliable bonding with polyurethane foam insulation layer, effectively improving the overall structural stability and service life of district heating and chilled water pre-insulated pipelines. With 21 years of R&D and manufacturing experience, we have successfully installed 389+ sets of HDPE jacket pipe extrusion lines in more than 60 countries worldwide, gaining consistent trust from global pre-insulated pipe manufacturers and EPC contractors.

This full-automatic HDPE jacket pipe extrusion line is the core supporting equipment for PU foam pre-insulated pipe production, achieving integrated, continuous and high-efficiency casing pipe manufacturing with fully customizable configuration:

• Vacuum Loader: Automatic PE particle feeding, ensuring stable and continuous material supply for high-output HDPE casing production
• Hopper Dryer: Removes raw material moisture to stabilize PE melt quality and avoid defective pipe surface
• High-Efficiency Single Screw Extruder: High-torque extrusion, compatible with virgin and recycled PE materials, realizing 250-1350kg/h stable output
• Precision Vacuum Calibration Table: Professional sizing system ensures ±0.1mm ultra-high dimensional accuracy for perfect fit with PU insulation layer
• Water Spraying Cooling Tank: Multi-stage circulating cooling to ensure stable pipe shaping and structural uniformity
• Synchronized Hauling Machine: Stable traction speed matching all diameter models for consistent pipe forming quality
• Dust-Free Planetary Cutting Machine: Chipless and dust-free cutting, clean workshop environment without secondary cleaning
• Discharging Frame: Automatic pipe discharging and orderly stacking for convenient storage and transportation

All equipment operates in perfect coordination to ensure stable, 110-2200mm high output HDPE jacket pipe production, matching the full operation efficiency of the (HDPE casing + PU foam) district heating and chilled water pre-insulated pipe production system.

The whole production process adopts one-time forming technology, supporting single-operator intelligent operation with high efficiency and low loss:

Vacuum Material Feeding -> Hot Air Drying -> PE Extrusion Plasticizing -> Mold Forming -> Vacuum Precision Calibration (±0.1mm Tolerance) -> Water Spray Cooling -> Synchronized Hauling -> Dust-Free Planetary Cutting -> Automatic Discharging

One-time forming eliminates edge trimming procedures, greatly reducing raw material waste, lowering production cost and improving overall extrusion efficiency for mass pre-insulated jacket pipe manufacturing.

• Full 110-2200mm Diameter Coverage: 7 standard models cover small, medium and extra-large HDPE jacket pipes, adapting to all specifications of district heating and chilled water pre-insulated pipelines without extra equipment investment
• High-Efficiency Stable Output: Max 1350kg/h throughput, effectively solving production bottlenecks and meeting large-scale municipal heating and chilled water infrastructure project delivery demands
• Dust-Free Environmental Protection Cutting: Innovative planetary cutting technology avoids plastic dust pollution, improving workshop safety and reducing post-processing workload
• Ultra-Precision Dimensional Control: ±0.1mm wall thickness tolerance fully meets EN253 and GB/T29047 international standards, ensuring tight bonding between HDPE casing and PU foam insulation
• Space-Saving Compact Design: 26-45m flexible line layout adapts to different factory workshops, saving floor space without sacrificing production capacity
• Labor-Saving Full Automation: PLC intelligent centralized control realizes single-person operation, greatly reducing manual cost and human error
• Low Production Cost: Compatible with recycled PE materials + one-time zero-trimming forming, maximizing material utilization and lowering unit production cost

• One-Stop Pre-Insulated Pipe Solution: Provides customized workshop design, equipment installation, commissioning and operator training for complete HDPE casing + PU foam pre-insulated pipe production lines
• Global Proven Project Experience: 389+ running lines worldwide, mature application in heating and chilled water projects in Russia, Central Asia, Middle East, Africa and other regions
• Professional R&D Team Support: Backed by senior engineering team and national high-end machinery expert workstation, providing personalized technical customization and process optimization

Founded in 2003, Qingdao Huashida Machinery Co., Ltd. is a professional high-tech manufacturer with 21 years of experience in HDPE jacket pipe extrusion lines, pre-insulated pipe production systems and pipeline anti-corrosion equipment. The company holds multiple national patents and ISO9001/ISO14001/ISO45001/CE international certifications.

Focusing on the R&D and production of thermal insulation pipeline machinery and plastic extrusion equipment, we have exported more than 500 sets of equipment to over 60 countries and regions. We provide full-cycle customized solutions and 24-hour online after-sales technical support for global district heating projects, chilled water pipeline manufacturers and EPC engineering contractors.