At our factory, we offer two types of sandwich panels for cold room storage: PU panels and PIR panels. We have two imported production lines dedicated to manufacturing these panels.
A sandwich panel consists of three layers: the core, and two side skins. The core is made of different raw materials, depending on the type of panel. And, we offer a wide range of steel materials for the surface.
2. What are the differences between PUR and PIR panels?
PIR and PU panels are two different sandwich panels from different raw materials.
Features of cold room panel:
Broadest range of cold room and walk-in freezer options.
Dependable and extremely energy-efficient solutions.
Extended lifespan, minimal operating and maintenance expenses.
Ease and speed of cold storage installation.
PU Panel
PIR Panel
Panels Thickness
50mm ~ 200mm
Panels Density
42Kg/M3
Material
Polyurethane
Polyisocyanate
Connection Type
Cam Lock
Continueous
Fire Resistance
B2 Class
Advantage
More Flexible
Excellent Thermal Insulation Performance
Good Thermal Insulation Performance; High Water Resistance; High Tensile Strength; Light Weight, And Low Cost;
More Suitable
Small And Medium Project
Large And Medium Project
3. How To Choose the suitable panel for cold room?
#1 Panel Thickness
We offer sandwich panels in varying thicknesses, ranging from 50mm to 200mm. The appropriate thickness can be selected based on factors such as temperature, room size, and other requirements.
Panels thickness
Heat transfer coefficient(w/m2·k)
Temperature difference inside and outside cold room
Suitable temperature for cold room
75mm
0.267/0.3
40°C
-5~25°C
100mm
0.2/0.23
50°C
-15~25°C
150mm
0.133/0.15
70°C
-25~25°C
180mm
0.11/0.125
80°C
-35~25°C
200mm
0.1/0.113
90°C
-50~25°C
#2 Surface Material
The surface steel can be chosen according to the application. We offer a variety of steel options to meet your project requirements.For PPGI (color plate), we use Baosteel, a renowned steel manufacturer in China. Ourstainless steel(SUS304)has excellent anti-corrosion properties and is suitable for coastal cities.
For example, Jack need a cold storage to freeze fish. So he bought the panel with stainless steel and aluminum steel.
Stainless steel on inner side — anti-rust, durable. Aluminum steel on outer side — save money, looks pretty.
4. Cold Room Panels Installation
#1. Installation for cold room PU panel with Cam lock system
Fit two panels together
Insert the allen wrench, twist it clockwise
Pull out the allen wrench
#2. Installation for cold room PIR panel
5. Application
The following is the list of the applications whereby sandwich panel is used:
Processing Room
Cold Rooms/Cold Storage
Ripening Chambers
Freezer Rooms
Blast Freezer Rooms
Clean Rooms
Insulated Roofs
Wall Claddings
There are suitable for various industries, such as fruit and vegetable processing, meat processing, fish processing, and more.