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Cold Storage PU Sandwich Panel Line

Aug 6, 2025

The cold storage pu sandwich panel production line is a specialized equipment combination for producing polyurethane sandwich panels. This type of sandwich panel uses polyurethane rigid foam as the insulation layer and is commonly used in industrial plants, logistics and warehousing, wall and roof enclosure systems of integrated houses, as well as cold storage construction and other fields.

Cold Storage PU Sandwich Panel Linesandwich panel line

The cold storage pu sandwich panel line mainly consists of the following equipment:

  • Uncoiling system: used for uncoiling steel plates to provide raw materials for subsequent processing.

  • Steel plate feeding system: Introduce the uncoiled steel plate into the production line.

  • Steel plate automatic docking system: realizes automatic docking of steel plates to ensure the continuity of the production line.

  • Reinforcement unit: carries out reinforcement treatment on steel plates to enhance their strength and rigidity.

  • Molding machine system: composite steel plate and polyurethane foam into sandwich board.

  • Polyurethane foaming system: mix the two components of hard foam according to a certain proportion and evenly distribute them on the bottom surface of the sandwich board, then foam and solidify to form.

  • Double crawler machine and heating system: between the upper and lower conveyor chain plates of the double crawler machine, hard foam is foamed and solidified.

  • Cutting saw: Cut the solidified sandwich panel into finished products of the required length.

In addition, according to production needs, the production line may also be equipped with steel plate preheating system, rock wool automatic cutting and conveying system, laminating equipment, cooling equipment, automatic palletizing machine, packaging system, chemical material storage system, conveying system, dust removal and environmental protection equipment, etc.

The polyurethane raw material is fed into the mixing head by the metering pump of the infusion machine in a certain proportion, and then evenly poured onto the bottom layer surface material of the sandwich panel, and transported to the laminating machine together with the upper layer surface material. The polyurethane foam is foamed and solidified between the upper and lower chain plates of the laminator. After curing and forming, the sandwich panel is trimmed on both sides of the production line and cut into the required length by an automatic tracking cutting machine.

Product Features

  • Efficiency: The cold storage pu sandwich panel production line has a high degree of automation, high production efficiency, and can quickly meet market demand.

  • Flexibility: The cold storage pu sandwich panel line can adjust production parameters according to customer needs to produce sandwich panels of different specifications and thicknesses.

  • Environmental friendliness: Equipped with dust removal and environmental protection equipment to ensure that emissions during the production process meet environmental requirements.

The products produced by the cold storage pu sandwich panel line are widely used in insulation building materials, cold chain building materials and other fields, such as cold storage, refrigerated trucks, wall panels, roof panels, etc.

With the increasing national requirements for energy conservation and environmental protection, as well as the development of the cold chain logistics industry, the demand for polyurethane sandwich panels in cold storage is constantly increasing. Multiple enterprises producing cold storage pu sandwich panel lines have emerged in the market, with continuously improving product performance and quality. In the future, with the continuous advancement of technology and the deepening expansion of the market, the cold storage pu sandwich panel line will usher in a broader development space.

The cold storage pu sandwich panel line, as a combination of high-efficiency, environmentally friendly, and energy-saving sandwich panel equipment, has broad application prospects in the fields of insulation building materials and cold chain building materials.

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