Cold Storage Sandwich Panel is a special composite building material designed for low-temperature environments, consisting of two outer metal panels (mainly color-coated steel plates, galvanized steel plates or stainless steel plates) and a middle core material-usually polyurethane (PU), extruded polystyrene (XPS) or rockwool, combined through high-pressure foaming or mechanical interlocking technology. Its core structure follows a "panel + core + panel" sandwich design: the outer panels bear structural protection and corrosion resistance, while the core material provides extreme thermal insulation, vapor barrier and structural support. With the advantages of light weight, high airtightness and low-temperature impact resistance, it is the core enclosure material for cold chain warehouses, food processing and pharmaceutical refrigeration scenarios.
The core value of cold storage sandwich panels lies in extreme thermal insulation, high-efficiency airtight & vapor barrier and low-temperature stability, which can effectively inhibit cold energy loss, reduce refrigeration energy consumption, and avoid structural damage caused by condensation and icing. According to core material types, it can be subdivided: polyurethane (PU) cold storage panels are the first choice for low-temperature cold storage due to their low thermal conductivity (≤0.024 W/(m·K)) and high foaming density; rockwool cold storage panels have Class A fire resistance, suitable for pharmaceutical cold storage and industrial cold chain projects with strict fire protection requirements. Its typical applications include fresh e-commerce cold storage, central kitchen low-temperature processing rooms, vaccine cold storage and cold chain logistics transit warehouses.
In addition to the food and pharmaceutical fields, cold storage sandwich panels are also widely used in special scenarios such as chemical low-temperature storage, electronic component low-temperature testing, and ice and snow venues. In the chemical industry, cold storage panels can withstand low temperatures below -40℃ for constant temperature storage of easily crystallized chemicals; in the electronic manufacturing field, high-precision cold storage panels can provide a stable low-temperature testing environment for components such as semiconductors and lithium batteries; in ice and snow venues, as an enclosure structure, cold storage panels can effectively block external heat, maintain the ice and snow environment of -5~-10℃ inside the venue, and reduce the operating cost of the refrigeration system.
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