Cold King agents come to talk about how even if the unit capacity exceeds the actual requirement, insufficient air circulation can still be the main cause of item deterioration; Any obstruction around the goods may lead to a 'hotspot'.

A qualified refrigerated truck should ensure good ventilation on all six sides of the compartment and no obstruction on all six sides of the cargo; Good air circulation can ensure that goods are transported at the appropriate temperature requirements. The cold (hot) gas blown out by the refrigeration unit isolates the external cold (hot) sources entering the carriage from the goods, thereby protecting the goods. If a blockage occurs at a certain location, the cold (hot) source of that part will directly enter the item, causing a change in the temperature of the goods. Ensure that the return air shutter is in good condition; Do not block the inlet (return air) of the evaporator; Insufficient return air will result in irregular circulation of cold air and cause the top cargo to freeze.

The goods should be stacked on double-sided pallets; The fresh-keeping pallet cannot be wrapped with plastic film, as the film will block the circulation of cold air to the goods; Do not block the floor under the goods.

The general refrigerated truck floor is made of ventilated aluminum guide rail floor; But there are also some refrigerated trucks that do not have aluminum rails and use flat anti slip floors. As a third-party transportation enterprise or enterprise transport vehicle for dairy products, flat anti slip floors are usually used for the transportation of various products or for easy cleaning of the floor. However, when loading, attention should be paid to using double-sided pallets to ensure the circulation of cold air on the ground. It is strictly prohibited to stack goods directly on a flat floor.