PIR Panels

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).

Unique one-piece insulated enclosure with better insulation and strength
Full stainless steel structure with good appearance, easy to clean
Aluminum-alloy evaporative plate with better freezing capacity
Separate liquid supply and suction for each plate, even supply with high efficiency and better freezing performance
Mass production, freeze in blocks

Trusted By Leading Companies

Product Features

Why Choose Square's PIR Panels

Thermal Resistance
- Closed Cell Content≥93 %
- Water absorption rate ≤3%
- Thermal conductivity≤0.022W/(m • k)
- Excellent thermal insulation performance.
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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.

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Environment Friendly

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

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High Strength

Experience durability with thickness direction compressive strength ≥140kPa and bonding strength ≥100kPa.

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Appearance

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

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Easy Installation:

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

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Hygiene and Food Safety

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

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Parameters

Name	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

Extensive Experience in Applications

-35 to 20℃
Ideal for wine, chocolate, pharmacy items, fruits, seeds, and more.
-40 to – 5℃
Perfect for frozen meat, seafood, vaccines, etc.
-20 to – 40℃
Suitable for blast freezers, cryogenic storage for tuna, and other ultra-low temperature requirements.
High-rise cold storage
Designed to accommodate high-rise cold storage facilities, ensuring efficient and reliable temperature control for various perishable items.