Cold Room Doors

Cold Room Doors are the most important element of cold storages and refrigerated rooms. Typically, cooling doors are selected in a wide variety of types and sizes, even in the process of structural design of cold rooms.

 

Doors for Cold Rooms

The main purpose of doors for cold rooms is the thermal insulation of the door through which products are loaded and unloaded. Doors must withstand the temperature conditions and workload in refrigerated rooms; Therefore, when choosing doors, it is important to choose the right door type and its technical characteristics: size, insulation thickness, etc.

Door Types for Cold Storages

Depending on the operating conditions and when performing loading and unloading operations in cold rooms and warehouses, the following are used:

Hinged Doors (swinging),
Sliding Doors,
Vertical Doors (guillotine type doors).

Hinged Doors for Cold Rooms

Hinged doors are made single or double-leaf, depending on the door size. As a rule, single-hatch doors are used for a door with a width of up to 1.2 m, double-hatch ones are usually applied to areas of larger sizes. The door panel is fixed on two or more hinges, depending on the size (door height). Depending on the position of the hinges, the door is called “right” or “left” and opens to the corresponding side. The advantage of hinged doors is easy installation and low price.

 

Sliding Doors for Cold Rooms

The panel of sliding doors is moved on rollers along the guide (slide rail). These can be done with right or left roll support (opening). They “sit” when the door is closed and are tightly pressed under their weight, the action of the compression rollers, ensuring good sealing of the door. In addition to manual opening, automatic electric drives for sliding doors are used, which can be activated by console and optionally radar, photocells, magnetic loops, remote control.

 

Guillotine Type Vertical Doors

In this version of Cold Room Doors, the panel is raised, which is convenient when there is no free space to open the sliding doors. Such doors are often used with an electric drive, since they are difficult to open manually.

 

Medium and Low Temperature Doors

Hinged and sliding doors for refrigerated rooms differ depending on the degree of temperature:

Medium temperature doors for rooms and warehouses (0 degrees and above),
Low temperature doors for Cold Storage (-15 to -25 0С and below).

 

The main differences between medium cooling door and low temperature doors depend on a certain period of use, and their thickness can be between 60-160 mm. The standard thickness for medium temperature cold rooms is 60-80 mm, for low temperature ones 100-120 mm. (-30-40 0С) products shock freezing chambers and large warehouse complexes with entrance doors should have doors with a thermal insulation thickness of 140-160 mm.

 

Options and Special Door Design

Optionally, many manufacturers offer a door trim made of stainless steel, non-ferrous metal or metal with an additional polymer coating (PVC, polyester). It protects its fabric with pads made of metal or plastic sheets. In addition, it is possible to equip the doors with viewing windows, complement them with different versions of handles, locks, pressure balancing valves, protect the opening area with various special bumpers. Doors with special configurations are produced for special operating conditions. These;

​​Doors and gates with hanging rails used in meat processing plants and slaughterhouses;
​Hermetic sliding doors for a controlled atmosphere chamber used mainly for storing fruit and vegetables.

 

Which Cooling Room Doors Should I Choose?

It is determined by the dimensions of the area to be used for a concrete door, space limitations and working conditions. General recommendations:

It is convenient to use wickets and swinging gates for the passage of one person;
​Sliding ones in busy work areas;
​It is better to use the vertical gate as a last resort when it is not possible to install or operate other types of gates.