Large Diameter HDPE Vacuum Calibration Jacket Pipe Extrusion Line for Insulated Pipe

The HDPE Jacket Casing Pipe Extrusion Line is a high-performance system engineered to produce durable protective casings for PUR (Polyurethane) foam pre-insulated pipes. Utilizing state-of-the-art vacuum calibration technology, this production line ensures that casing pipes meet rigorous international standards for thermal insulation and mechanical protection.

By integrating seamlessly into the (HDPE casing + PU foam) manufacturing workflow, our equipment delivers high-speed output while maintaining energy efficiency. The resulting pipes feature superior anti-corrosion properties and high-precision diameter accuracy, essential for long-term underground and industrial service.

As a core part of the (HDPE casing + PU foam) pre-insulated pipe production line, this HDPE extrusion line consists of the following key equipment (configurations can be customized):

• 1 set of Vacuum Loader
• 1 set of Hopper Dryer
• 1 set of High-efficiency Single Screw Extruder
• 1 set of Vacuum Calibration Table
• 1 set of Water Spraying Tank
• 1 set of Hauling Machine
• 1 set of Cutting Machine
• 1 set of Discharging Frame

All equipment operates in perfect coordination to ensure stable, efficient production of high-quality HDPE casing pipes, matching the overall operation efficiency of the (HDPE casing + PU foam) pre-insulated pipe production system.

The production process is fully automated, simple to operate, and efficient, with the following steps:

Vacuum feeding of PE granules → Hot air drying of material → Extrusion plasticizing → Mold shaping → Vacuum sizing → Water cooling → Pulling out → Cutting pipe → Carrier laying-off pipe

The one-time forming process eliminates the need for edge trimming, reducing raw material waste and further improving production efficiency.

• Compact Size: Flexible deployment, suitable for various workshop venues, saving space.
• High Automation Degree: Operable by a single person, significantly reducing labor costs and improving production efficiency.
• Long Service Life: High-quality components and a well-designed system ensure low maintenance costs and long-term, stable operation.
• High-Efficiency Extruder: Provides sufficient output and stable performance, perfectly matching the efficiency of the entire (HDPE casing + PU foam) pre-insulated pipe production line.
• Superior Pipe Quality: Uniform wall thickness, smooth internal and external surfaces, precise diameter accuracy, and strong pressure resistance.
• Cost-Saving: High raw material utilization rate, no waste, and one-time forming without additional trimming, reducing production costs.

• One-Stop Solution: Provide full-process services including design, installation, commissioning, and training for the (HDPE casing + PU foam) pre-insulated pipe production line.
• Mature Experience: Share extensive experience from 389 sets of production lines worldwide, with mature technology and strong implementability.
• Professional Technical Team: Employ 9 professional senior engineers specializing in HDPE casing extrusion and (HDPE casing + PU foam) pre-insulated pipe production technology.
• Strong Technical Support: Possess a high-end plastic machinery expert workstation in China, providing professional technical guidance and solutions.

Founded in 2003, Qingdao Huashida Machinery Co., Ltd. is a leading manufacturer with 21 years of professional experience in pipeline anti-corrosion equipment and HDPE pre-insulated pipe production lines. 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, ENC). Our main products cover HDPE jacket pipe extrusion lines (110-2200mm), pre-insulated pipe production lines, and pipeline anti-corrosion materials & instruments.

Global Reach: Over 500 sets of our production lines have been exported to Russia, Kazakhstan, Iran, Nigeria, and other countries, earning wide global recognition.

Customer Support: We provide customized solutions and a professional after-sales team offering on-site guidance and online training to ensure stable equipment operation.