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Product Introduction
PIR Building Sandwich Panels are high-performance enclosure panels tailored 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 thermal insulation, reliable B1-grade fire retardancy, strong structural support, and outstanding moisture resistance. The product can effectively block internal and external heat exchange, creating a stable low-temperature environment for cold chain logistics centers, food processing workshops, and pharmaceutical cold storage. It is a key building material to ensure the energy-saving, safe, and reliable operation of cold storage projects.
Product Advantage
The PIR core material has a decomposition temperature of up to 260℃, which is much higher than the 220℃ of ordinary polyurethane (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 guarantee for cold storage facilities with dense goods storage.
The panel uses advanced PIR foaming formula, maintaining a long-term stable thermal conductivity of ≤0.024 W/(m·K). This industry-leading index allows the use of thinner panels to achieve better insulation effects, reducing cold leakage and cutting customers’ long-term operating energy consumption by more than 30%.
The PIR core material has a density of ≥42kg/m³ and excellent compressive strength. Its bonding strength with high-quality metal panels is ≥0.12MPa, ensuring the overall structural integrity of the panel. It is suitable for walls and roofs of large-span and high-rise cold storage, without the risk of deformation or collapse.
The core material has a closed-cell rate of over 95% and a water absorption rate of less than 2.5%. In the long-term high-humidity environment of cold storage, it hardly absorbs water, effectively avoiding the permanent decline of insulation performance and panel deformation caused by core material moisture. The dimensional change rate is controlled below 1.5%, ensuring decades of stable operation of cold storage.
The product uses environmentally friendly fluorine-free foaming agents such as cyclopentane, meeting international environmental standards and passing green building materials certification. The surface layer adopts 55% aluminum-zinc alloy coated steel plates with strong corrosion resistance, and the entire system has a service life of over 25 years, achieving high economic efficiency throughout the life cycle.
The factory-prefabricated panels are designed with a precise full-mouth lock seam interlocking structure. Combined with special low-temperature sealant, on-site splicing is fast and tight. This systematic installation method eliminates cold bridges from the source and improves construction efficiency by up to 40%.
Technical Parameters
PIR Building Sandwich Panels support full customization of specifications to meet different cold storage project requirements. The product’s fire rating reaches B1 level, and it has obtained multiple authoritative certifications including CCC, ISO9001, and FM Approvals. The manufacturer has a factory area of 600,000 square meters and 1,800 employees, with an annual production capacity of 1,000 units. It provides turn-key project services, covering the entire process from design, production to installation and commissioning, to ensure the smooth progress of cold storage projects. The product is produced in China, and the transport package can be customized according to customer needs.
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
High-standard Pharmaceutical and Vaccine Cold Chain Storage: As the core enclosure material of GSP-certified pharmaceutical cold storage and vaccine storage centers, the panel’s stable ultra-low thermal conductivity can control the internal temperature fluctuation within ±2℃, providing a reliable constant temperature and humidity environment for drugs, reagents, and vaccines.
Large-scale Automated Low-temperature Logistics Centers: 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, meeting the mechanical requirements of dense storage while reducing electricity costs.
Food Processing and Central Kitchen Constant-temperature Workshops: The panel’s excellent moisture-proof and mold-proof properties meet food hygiene standards, and its smooth metal surface is easy to clean and disinfect. It can effectively separate different temperature zones and prevent condensation, ensuring food processing safety and quality.
High-end Fresh Food Retail and Last-mile Delivery Cold Storage: Its convenient installation feature is suitable for rapid deployment and renovation in commercial areas. The excellent insulation effect maintains stable temperatures during frequent inbound and outbound operations, and its aesthetic appearance meets the display needs of commercial environments.
FAQ
The core difference lies in the molecular structure. PIR forms more stable isocyanurate rings through modification, with a decomposition temperature of up to 260℃, which is significantly higher than that of PUR. It produces less smoke during combustion and achieves a more stable B1-level flame-retardant effect.
No. The high closed-cell rate of PIR keeps the thermal conductivity stable at ≤0.024 W/(m·K) for a long time. The foam structure remains stable even in ultra-low temperature environments, ensuring no decline in insulation performance.
The long-term value is reflected in three aspects: better fire safety reduces insurance and risk costs; low thermal conductivity brings significant energy-saving benefits; high dimensional stability reduces maintenance needs, resulting in more advantageous life-cycle costs.
We use a dedicated eccentric hook lock or tongue-and-groove insertion system, combined with low-temperature elastic sealant. This design maintains tight interlock when panels shrink due to temperature differences, achieving dual physical and chemical sealing to prevent cold bridges and cold leakage.
