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Sandwich Panel Machines

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PU Sandwich Panels Plant

Aug 15, 2025

PU sandwich panels plant is an automated production line system specifically designed for producing polyurethane (PU) sandwich panels. This equipment combines two layers of metal panels (usually color steel plates, aluminum plates, or stainless steel plates) with an intermediate polyurethane foam core material to produce building panels with excellent thermal insulation properties.

PU Sandwich Panels Plantsandwich panel machine

With the popularization of green building concepts and the increasing demand for energy efficiency, polyurethane sandwich panel equipment has become a key equipment in the field of modern building material manufacturing.

Core Module

  • Metal panel pretreatment system: including unwinding machine, leveling machine, cleaning device, and glue coating equipment, ensuring the cleanliness of the metal surface and improving the bonding strength.

  • Continuous foaming system: consisting of a precise metering pump, mixing head, and temperature control device, it achieves precise proportioning and uniform mixing of polyurethane raw materials.

  • Double track laminating machine: a core forming equipment that controls the thickness and flatness of the sheet through an upper and lower track conveying system, while providing the pressure and temperature environment required for foaming.

  • Automatic cutting system: using CNC technology to achieve precise cutting of sheet length, some high-end equipment is equipped with automatic stacking devices.

  • Control system: PLC or computer centralized control system, monitoring the entire production process parameters to ensure stable product quality.

Advantage

  • Efficient production capacity: The continuous polyurethane sandwich panel production line design can achieve a production speed of 6-12 meters per minute, greatly improving production efficiency.

  • Energy saving and environmental protection: adopting closed mold foaming technology, the utilization rate of raw materials is over 98%, reducing waste generation; Some equipment is equipped with exhaust gas recovery systems.

  • Stable product quality: Accurate temperature control and metering system ensures uniform foaming density, and the flatness error of the board can be controlled within ± 1mm/m.

  • Flexible adaptability: By adjusting parameters, different thicknesses and widths of boards can be produced to meet diverse needs.

Application

  • Industrial plants and storage facilities

  • Cold storage and cold chain logistics buildings

  • Purification workshop and medical facilities

  • Prefabricated buildings and temporary housing

With the continuous improvement of building energy-saving standards and the rapid development of prefabricated buildings, the technological innovation of PU sandwich panels plant will continue to promote the progress of the building insulation material industry and provide better solutions for green buildings.

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