PLC-Controlled Vacuum Calibration Line for Insulated Pipes (655-1380mm), High Efficiency & Continuous Production

Product Description

This high-efficiency HDPE jacket pipe extrusion line is designed for high-speed, energy-saving production of protective outer casings for polyurethane (PU) pre-insulated pipes, in compliance with international standards. Utilizing vacuum calibration technology, it produces pipes with smooth interior and exterior surfaces, ensuring excellent corrosion resistance, thermal insulation, mechanical properties, and extended service life.

Product Parameters

Production line composition:

• 1set Vacuum loader
• 1set Hopper dryer
• 1set High-efficiency single screw extruder
• 1set Vacuum calibration table
• 1set Water spraying tank
• 1set Hauling machine
• 1set Cutting machine
• 1set Discharging Frame
• 1set PLC

Technical Highlights:

Optimized High-Efficiency HDPE Jacket Pipe Extrusion Line

This advanced, high-efficiency HDPE jacket pipe extrusion line is engineered for the high-speed and energy-saving production of protective outer casings, specifically designed for polyurethane (PU) pre-insulated piping systems. Manufactured in full compliance with international standards, it ensures consistent output of superior-quality pipes that meet the rigorous demands of modern district heating, oil & gas, and industrial piping networks.

Technical Highlights & Process Superiority
At the core of its performance is the vacuum calibration technology, which precisely controls the pipe dimensions and wall uniformity during extrusion. This process guarantees that the produced HDPE jackets possess exceptionally smooth interior and exterior surfaces, minimizing flow resistance for any future cable pulling or secondary filling and eliminating points of stress concentration.

Resulting Product Excellence
The seamless production translates directly into outstanding final product properties:

Enhanced Durability: Superior mechanical properties, including high ring stiffness and impact resistance, ensure integrity during handling, installation, and long-term service.

Long-Term Protection: Excellent corrosion and chemical resistance safeguards the inner PU foam and carrier pipe from environmental and soil aggression.

Reliable Thermal Performance: As part of the pre-insulated system, it contributes to consistent thermal insulation efficiency, reducing energy loss.

Extended Service Life: The combination of material quality, precise manufacturing, and robust properties ensures a significantly extended operational lifespan, reducing lifecycle costs.

System Integration & Control
The line typically integrates a high-output single-screw extruder, a dedicated vacuum calibration tank, advanced cooling systems, and a precision haul-off unit. It is often governed by a centralized PLC control system, allowing for stable operation, repeatable accuracy, and reduced manual intervention, thereby boosting overall productivity and consistency.

End-User Value Proposition
By investing in this line, manufacturers gain a competitive edge through reduced per-unit energy consumption, higher production throughput, and minimal material waste. It enables the reliable production of HDPE jackets that are critical for the durability and efficiency of pre-insulated pipe networks, fulfilling both project specifications and the long-term reliability expected by utilities and contractors worldwide.

Our Advantages

Features of the HDPE sleeve production line:

• 1.small dimension
• 2.high degree of automation, can be operated by one person, saving labor costs
• 3.long service life.
• 4.high-efficiency extruder gives larger output, stable performance
• 5.pipe wall is average and smooth
• 6.no waste of raw material
• 7.One-time molding

Qingdao Huashida Machinery Co., LTD., founded in 2003, is a global developer, manufacturer and solution provider of plastic extrusion equipment. 70% of its customers come from overseas countries such as Europe, America, the Middle East and Southeast Asia.
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