High Output HDPE Jacket Pipe Extrusion Line for District Heating Pre-Insulated Pipe

This High Output HDPE Jacket Pipe Extrusion Line is a high-performance system engineered to produce durable, precision-calibrated HDPE protective casing pipes for PUR (Polyurethane) foam pre-insulated pipe systems used in district heating networks, chilled water distribution, and buried pipeline infrastructure.

Featuring dust-free planetary cutting technology alongside state-of-the-art vacuum calibration forming, this HDPE jacket pipe production line eliminates plastic dust and debris during the cutting stage - keeping the production environment clean while ensuring casing pipes meet rigorous international standards for thermal insulation performance and mechanical protection in long-term underground service.

By integrating seamlessly into the (HDPE casing + PU foam) district heating pre-insulated pipe manufacturing workflow, this high output HDPE casing extrusion line delivers sustained capacity of 250-1350kg/h across a 110-2200mm pipe diameter range while maintaining energy efficiency and dimensional accuracy.

With 389 sets installed worldwide across district heating, pre-insulated pipe, and thermal insulation projects, this HDPE jacket pipe extrusion line is backed by 21 years of manufacturing experience and trusted by global customers across Russia, Kazakhstan, Iran, Nigeria, and 60+ countries worldwide.

As a core component of the (HDPE casing + PU foam) district heating pre-insulated pipe production system, this high output HDPE jacket pipe extrusion line consists of the following key equipment (all configurations customizable):

• Vacuum Loader - automated PE granule feeding for continuous high-output production
• Hopper Dryer - moisture removal ensuring consistent melt quality for HDPE jacket pipe extrusion
• High-Efficiency Single Screw Extruder - high-torque output sustaining 250-1350kg/h across the full 110-2200mm diameter range; compatible with virgin and recycled PE granules
• Vacuum Calibration Table - precision sizing ring system delivering ±0.1mm wall thickness tolerance and high-precision diameter accuracy for pre-insulated pipe casing fit
• Water Spraying Tank - multi-stage cooling ensuring structural integrity and dimensional stability
• Hauling Machine - synchronized traction for stable pipe pulling speed
• Dust-Free Planetary Cutting Machine - chipless, debris-free pipe cutting keeping the workshop environment clean without secondary cleanup
• Discharging Frame - systematic pipe laying-off for storage and transport

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

The production process is fully automated, single-operator capable, and optimized for high output district heating pre-insulated pipe casing production:

Vacuum feeding of PE granules → Hot air drying → Extrusion plasticizing → Mold shaping → Vacuum sizing/calibration (±0.1mm tolerance) → Water spray cooling → Synchronized hauling → Dust-free planetary cutting → Carrier laying-off pipe

The one-time forming process eliminates the need for edge trimming - reducing raw material waste, lowering per-unit production costs, and further improving overall HDPE jacket pipe extrusion efficiency for district heating pre-insulated pipe manufacturing.

• High Output 250-1350kg/h Capacity: Sustains full-range production across the 110-2200mm diameter spectrum - keeping large-scale district heating pre-insulated pipe projects on schedule without output bottlenecks
• Dust-Free Planetary Cutting: Eliminates plastic dust and debris during HDPE jacket pipe cutting - reducing operator health risk, keeping the workshop environment clean, and removing secondary cleanup between production shifts
• Vacuum Calibration Precision: ±0.1mm wall thickness tolerance and high-precision vacuum sizing ring system ensure consistent diameter accuracy - critical for reliable PUR foam bonding in district heating pre-insulated pipe casing systems
• Compact, Flexible Deployment: 26-45m line length (model dependent) suitable for various workshop layouts - saving space without compromising high-output production capacity
• Single Operator Capability: Full automatic PLC control manages the entire HDPE casing extrusion process - significantly reducing labor costs versus semi-automatic jacket pipe lines
• Superior Pipe Quality: Smooth internal and external surfaces, uniform wall thickness, and precise diameter accuracy across 110-2200mm - ensuring tight, consistent fit over polyurethane foam insulation layers in pre-insulated pipe systems
• One-Time Forming - No Waste: High raw material utilization rate; one-time forming without additional trimming eliminates material waste and reduces per-unit production cost for district heating pipe casing manufacturers
• Virgin & Recycled PE Compatible: High-efficiency single screw extruder processes both virgin and recycled PE granules - reducing raw material costs without compromising HDPE jacket pipe output quality

• One-Stop District Heating Solution: Full-process services including scheme design, factory layout planning, equipment installation, commissioning, and operator training for the complete (HDPE casing + PU foam) pre-insulated pipe production line
• 389 Sets Installed Worldwide: Extensive proven experience from 389 HDPE jacket pipe extrusion lines deployed globally - the most reliable track record in this product category
• Professional Engineering Team: 9 senior engineers specializing in dust-free HDPE casing extrusion and (HDPE casing + PU foam) district heating pre-insulated pipe production technology
• High-End Expert Workstation: China's premier plastic machinery expert workstation providing professional technical guidance, R&D support, and customized HDPE jacket pipe production solutions

Founded in 2003, Qingdao Huashida Machinery Co., Ltd. is a leading manufacturer with 21 years of professional experience in high output HDPE jacket pipe extrusion lines, district heating pre-insulated pipe production systems, pipeline anti-corrosion equipment, and plastic pipe extrusion machinery. We focus on delivering high-quality, patented equipment and one-stop solutions for global customers.

Core Strengths: We hold independent design patents and multiple international certifications (ISO9001, ISO14001, ISO45001, CE). Our main products cover high output HDPE jacket pipe casing extrusion lines (110-2200mm) with dust-free planetary cutting capability, turnkey pre-insulated pipe production lines, and pipeline anti-corrosion materials & instruments.

Global Reach: Over 500 sets of our production lines - including 389 HDPE jacket pipe extrusion lines - have been exported to Russia, Kazakhstan, Iran, Nigeria, and 60+ countries worldwide, earning wide recognition from district heating contractors, EPC project teams, and pre-insulated pipe manufacturers globally.

Customer Support: We provide fully customized solutions tailored to your district heating pre-insulated pipe production requirements, backed by a professional after-sales team offering on-site installation guidance, operator training, and 24-hour online technical support to ensure stable, high-output equipment operation.