High-Efficiency HDPE Casing Extrusion Line for Pre-Insulated Pipes
• Produces the protective HDPE outer casing for polyurethane (PU) foam-insulated pipe systems.
• Complies with international standards for quality and performance.
• Employs vacuum calibration technology to ensure smooth surfaces, superior mechanical properties, excellent anti-corrosion insulation, and a long service life.
• An energy-saving solution designed for high-output manufacturing.

Key Advantages

Key Line Features

• Space-Efficient Design: Compact layout minimizes the factory footprint.

• High-Level Automation: Enables one-person operation, drastically cutting labor requirements.

• Robust & Reliable: Engineered for stable, long-term performance with minimal maintenance.

• High-Output Extrusion: Energy-saving extruder ensures stable and high-volume production.

• Superior Pipe Quality: Produces pipes with a smooth surface and excellent wall thickness uniformity.

• Material Efficiency: One-step, precision forming virtually eliminates raw material waste and removes the need for trimming.

Our Service & Expertise

• Turnkey Solutions: Comprehensive support from design and installation to commissioning and training.

• Proven Global Experience: Benefiting from insights gained in 389+ successful line installations worldwide.

• Dedicated R&D: Backed by a team of 9 senior engineers focused on plastic machinery innovation.

• Industry Authority: Hosts a state-certified High-End Plastic Machinery Expert Workstation in China.

HDPE Jacket Production Flow
PE Granules Vacuum Feeding → Hot Air Drying → Extrusion & Plasticizing → Mold Forming → Vacuum Sizing → Water Cooling → Haul-Off → Cutting → Pipe Discharge

The HDPE pre-insulated pipe extrusion line is widely used to produce protective jackets for thermal insulated pipes in various industries, including:

• District Heating Systems
• Hot and Chilled Water Piping Systems
• Gas Pipelines
• Water Mains
• Geothermal Heating Systems

Qingdao Huashida Machinery Co., Ltd. has been engaged in the development and producing of pipeline anti-corrosion equipment and raw materials since 2003. It is a leader manufacturer of heat-shrinkable sleeve and equipment in China. Huashida brand is favored by domestic and foreign customers. Devices of the equipment design have our patents. We passed ISO9001, ISO14001Environment, ISO45001 health certification. Up to now, more than 500 sets of production lines have been exported to Russia, Kazakhstan, Belarus, Egypt, Iran, Indonesia and other countries. Huashida brand heat shrinkable sleeve equipment in the production process of continuous summary and update has launched the fourth generation of products. The whole production line has reasonable design, intelligent operation, high speed and high efficiency, energy saving and electricity saving material labor cost. Continuous improvement in component design ensures uniform thickness, improved shrinkage, tensile strength and elongation at break. Product quality to meet the needs of different pipeline anti-corrosion demand. We have a professional after-sales service team to provide on-site and online video teaching and training. Help customers solve production problems as soon as possible.