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Rock Wool PU Sandwich Panel Line

Aug 8, 2025

The rock wool pu sandwich panel line is a combination of equipment specifically designed for producing rock wool pu sandwich panels. This sandwich panel combines the fire and heat insulation properties of rock wool with the waterproof and high-strength advantages of polyurethane, and is widely used in industrial plants, public buildings, and special environments such as cold storage and clean workshops.

Rock Wool PU Sandwich Panel Linesandwich panel line

The production line of rock wool polyurethane sandwich panel usually consists of multiple systems, including but not limited to:

  • Uncoiling system: used to provide raw steel plates and feed them into subsequent processing stages.

  • Steel plate pretreatment system: carries out pretreatment work such as cleaning, rust removal, painting, etc. on steel plates to improve the quality and performance of the plates.

  • Forming machine system: The pre processed steel plate is pressed into the desired shape, such as wavy or flat, through a forming mold.

  • Polyurethane foaming system: polyurethane foam is injected between formed steel plates to fill and solidify them to form a sandwich structure.

  • Rock wool laying and cutting system: rock wool is laid on polyurethane foam and cut as required to meet the requirements of different sizes and shapes.

  • Edge sealing system: Use materials such as polyurethane to seal the edges of sandwich panels to improve their sealing and aesthetic properties.

  • Cutting and palletizing system: Cut the produced sandwich panels and palletize them according to predetermined specifications for transportation and storage.

The production methods of rock wool polyurethane sandwich panels are mainly divided into two types: continuous and discontinuous:

  • Continuous production: suitable for enterprises with high production requirements. In the continuous production process, the materials used to make sandwich panels are processed at a high speed together. Polyurethane foam is continuously sprayed between the formed upper and lower surface materials moving forward at a uniform speed, where polymerization reactions take place to generate different forms of polyurethane sandwich panels. The cutting of the sandwich panel after it is fully formed is carried out according to the expected length, and the cutting process does not stop on the production line.

  • Non continuous production: suitable for special shaped products that cannot be produced continuously, or situations where the production volume is insufficient to justify investing in continuous equipment. In the discontinuous process, the materials are treated separately, which means that after the surface materials are formed, they are cut to the required length, and then assembled together into the laminator. foam is injected between the surface materials to generate a polyurethane sandwich panel with a preset shape.

Rock wool pu sandwich panels have been widely used in multiple fields due to their excellent performance:

  • Industrial and warehouse buildings: used for the exterior walls, roofs, etc. of steel structure factories, taking into account fire prevention and insulation needs.

  • Cold storage and logistics center: Excellent insulation performance helps maintain a low-temperature environment and ensure the safety of food, medicine, and other storage.

  • Public facilities: such as airport terminals, train stations, and other large-span buildings that meet fire prevention, sound insulation, and aesthetic requirements.

  • Special environment: such as clean workshops, food processing plants, etc., with surface antibacterial treatment that meets hygiene standards; High noise areas such as power plants and equipment workshops effectively reduce noise pollution.

With the continuous development of the construction industry and the increasing demand for energy conservation and environmental protection, the market demand for rock wool polyurethane sandwich panels, as a high-performance building material, will continue to grow. Therefore, the production line of rock wool polyurethane sandwich panels will also usher in broader development prospects.

The rock wool pu sandwich panel line is an important equipment combination for producing high-performance sandwich panels, with a wide range of application fields and market prospects. When choosing a production line, enterprises should fully consider their own needs and actual situation, and choose suitable production methods and equipment configurations.

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