Anji Group Cold Storage Project
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Square Plate freezers are commonly used for freezing brick-shaped products in mold or boxes. In plate freezers, refrigerant is allowed to circulate inside thin channels within the plates.
The packaged products are firmly pressed between the plates. High rates of heat transfer can be obtained between the packaged product and the evaporating plates.
We are proud to be the drafter of the China National Standard of Plate Freezer (GB / T22734-2008).
Product Features
Thermal Resistance

Hardly Flammable
Our products have passed the type test of “National Fireproof Building Material Quality Supervision and Inspection Center”. The combustion grade reaches GB8624-2012 standard B1(B-s2, d0, t1) flame-retardant grade. Manufactured product B1 grade, bare board core B1 grade insulated panels are available.

Environment Friendly
Our PIR Panels use n-pentane high-pressure foaming, without any CFC, HCFC, and HFC๏ผ and also respond positively to the Vienna Convention for the Protection of the Ozone Layer.

High Strength
Experience durability with thickness direction compressive strength โฅ140kPa and bonding strength โฅ100kPa.

Appearance
Choose from a range of panel steel skin patterns and colors to suit your aesthetic preferences.

Easy Installation:
Our pre-fabricated panels ensure convenient on-site assembly, disassembly, and reusability, facilitating hassle-free construction.

Hygiene and Food Safety
Benefit from excellent airtightness, preventing moisture intrusion and the growth of toxic mold and bacteria, ensuring hygiene and food safety.

| Nombre | Value |
|---|---|
| Thickness | 50 / 75 / 100 / 125 / 150 / 200 / 250 mm |
| U value | 0.4 / 0.29 / 0.22 / 0.18 / 0.15 / 0.11 / 0.09 W/m2.k |
| Thermal conductivity | <= 0.022 |
| Width | 600 ~ 1150 mm |
| Length | 2000 - 27500 mm |
| Core materials | PIR (Poly Isocyanurate Foam) |
| Face materials | Pre-painted steel:TDC51D-Z120 t=0.4 - 0.8 mm; (PE/SMP/HDP/PVDF) Stainless steel: 304 t=0.5 - 0.6 mm |
| Lining | External: rib pattern, small triangular, big ripple, small ripple, flat Internal : rib pattern, small triangular, flat |
| Wall panel simply support height | 3 / 3.8 / 4 m |
| Celling panel simply support length | 2.5 / 3.5 / 3.8 m |

Ideal for wine, chocolate, pharmacy items, fruits, seeds, and more.

Perfect for frozen meat, seafood, vaccines, etc.

Suitable for blast freezers, cryogenic storage for tuna, and other ultra-low temperature requirements.

Designed to accommodate high-rise cold storage facilities, ensuring efficient and reliable temperature control for various perishable items.
No. Square panels have ≥93% closed-cell content, excellent airtightness, and ultra-low water absorption (≤3%), preventing moisture intrusion and mold growth.
Yes. With compressive strength ≥140 kPa and bonding strength ≥100 kPa, our PIR panels are engineered to support high-rise cold storages and demanding industrial environments.
We own CE, EAC, INF, CNAS, ISO, ASME, PED, U2, CSA, CRN certifications and 300+ patents, as well as 350+ engineers. Square vertically integrated production ensures quality control from raw materials.
Square offers customized one-stop cold chain solution that meets your requirements. You can choose from various steel skin patterns, colors, and finishes for both internal and external sides, ensuring both functionality and visual consistency.
PIR (Polyisocyanurate) panels are rigid foam insulation panels with enhanced fire resistance and thermal stability, ideal for cold storage and industrial applications.(What is PIR Panel?)
PUR (Polyurethane) panels are versatile insulation panels known for good thermal performance and cost-effectiveness, commonly used in general building insulation.(What is PUR Panel?)
The key difference is that PIR panels offer better fire resistance, higher thermal stability, and lower smoke emissions compared to PUR panels, making them more suitable for demanding environments.

