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Product Introduction
PIR Cold Storage Sandwich Panels are high-performance enclosure panels engineered for modern cold storage facilities. The panel adopts a solid sandwich structure, with polyisocyanurate (PIR) rigid foam as the core material and high-strength color steel plates compounded on both sides. It integrates four core functions: excellent insulation, top-tier fire safety, moisture-proofing and high structural strength. With a thermal conductivity as low as 0.024 W/(m·K) and B1 fire-retardant grade, it effectively blocks internal and external heat exchange, creating a stable low-temperature environment. Widely applied to walls and roofs of cold chain logistics centers, food processing workshops and pharmaceutical cold storage, it is a key building material to ensure energy-saving, safe and reliable operation of cold storage facilities.

Product Advantage
This is the most distinctive feature of the product. The PIR core material has a decomposition temperature up to 260℃, much higher than the 220℃ of ordinary PUR materials. After special formula treatment, the panel has extremely low smoke density during combustion, fully meeting and exceeding the national B1-level flame-retardant standard. It provides a higher safety barrier for cold chain storage facilities.
The panel uses an advanced PIR foaming formula, maintaining a leading thermal conductivity of ≤0.024 W/(m·K) for a long time. This allows using thinner panels to achieve better insulation effects under the same design temperature, reducing cold leakage and cutting customers’ long-term operating energy consumption by over 30%.
The unique molecular structure of PIR core material gives it higher density and strength, with a core density of ≥42kg/m³ and excellent compressive strength. Its bonding strength with high-quality metal panels reaches ≥0.12MPa, ensuring overall structural integrity. It is ideal for large-span and high-rise cold storage walls and roofs without deformation or collapse risks.
The panel boasts an ultra-high closed-cell rate (>95%) and ultra-low water absorption rate (<2.5%). It hardly absorbs water in high-humidity cold storage environments, effectively preventing insulation performance degradation and panel deformation (dimensional change rate <1.5%) caused by core material moisture.
All products adopt environmentally friendly fluorine-free foaming agents like cyclopentane, complying with international environmental standards and obtaining green building material certification. The surface layer uses 55% aluminum-zinc alloy coated steel plates with strong corrosion resistance, ensuring a service life of over 25 years.
Factory-prefabricated panels feature a precise full-mouth lock seam interlocking structure. Combined with special low-temperature sealant, they can be spliced quickly and tightly on site. This installation method eliminates cold bridges from the source and improves construction efficiency by up to 40%.
Technical Parameters
The product model is PIR Panel, with a fire resistance rating up to B1 grade. It supports full customization for specifications and transport packages to meet diverse project needs. The manufacturer provides turn-key project services, covering the whole process from design to installation. The factory covers an area of 600,000 square meters with 1,800 employees and an annual production capacity of 1,000 units. The product has passed authoritative certifications including CCC, ISO9001 and FM Approvals, with the core features of environmental protection, fire resistance and stable metal panel structure.
Model NO. | PIR Panel |
Fire Rating | B1 |
Customized | Customized |
Service | Turn-Key Project |
Employees | 1800 |
Specification | Customized |
Origin | China |
Feature | Environmental, Fireproof, MetalPanel |
Certification | CCC, IS09001,FM Approvals |
Manufacturer | Yes |
Factory Area | 600000 Square Meters |
Transport Package | Customized |
Trademark | SQUARE |
Production Capacity | 1000units/Year |
Product Uses
As the core enclosure material for GSP pharmaceutical cold storage and vaccine storage centers, it meets the mandatory fire protection regulations for pharmaceutical warehousing. Its stable ultra-low thermal conductivity controls the warehouse temperature fluctuation within ±2℃, providing a reliable constant temperature and humidity environment for drugs and vaccines.
It is suitable for low-temperature cold storage and automated stereoscopic storage below -25℃. Its high strength and dimensional stability can support automated track and shelf systems, while its excellent insulation performance reduces electricity costs significantly.
It is an ideal choice for food processing clean workshops, central kitchen processing areas and pre-cooling rooms. Its super moisture-proof and mold-proof properties meet food hygiene standards, and its smooth metal surface is easy to clean and disinfect.
It is widely used in high-end supermarket cold chain distribution centers, fresh food e-commerce forward warehouses and catering chain cold storage. Its convenient installation supports rapid deployment and renovation in commercial areas, and its aesthetic appearance meets commercial display needs.
FAQ
The core difference lies in molecular structure. PIR forms more stable isocyanurate rings through modification, with a decomposition temperature of 260℃, which is much better than PUR’s 220℃. It produces less smoke during combustion and achieves a more stable B1-level flame-retardant effect.
No. The ultra-high closed-cell rate (>95%) ensures the thermal conductivity remains stable at ≤0.024 W/(m·K) for a long time. The foam structure stays stable even in ultra-low temperatures, effectively blocking heat transfer.
Its long-term value is reflected in three aspects: better fire safety reduces insurance and risk costs; ultra-low thermal conductivity brings significant energy-saving benefits; high dimensional stability lowers maintenance needs, making the whole life cycle cost more advantageous.
We adopt a dedicated eccentric hook lock or tongue and groove insertion system, combined with low-temperature elastic sealant. This design maintains tight interlock during temperature-induced panel shrinkage, achieving dual physical and chemical sealing to prevent cold bridges and cold leakage.