What is called a heavy carton, and what kind of carton can be called a heavy carton? The two important physical properties of cartons are bursting strength, compression resistance of empty cartons, and the unit of bursting strength is kgf/cm2, which is how much force can be used to break the cardboard on an area of one square centimeter. In simple terms, this is a policy to describe whether the carton is robust.

The bursting strength of ordinary cartons is less than 24kgf/cm2, while that of heavy-duty packaging cartons is more than 25kgf/cm2 Another policy is empty container compression resistance: the definition of empty container compression resistance is the weight that the carton can carry alone (not supported by the contents, emphasizing the maintenance of the contents of the carton) after it is formed. The unit of this policy is kg. The test method is when the carton is pressurized to how many kilograms.

the deformation of the carton will exceed 2cm. For example, if 500 kg of objects are placed on the carton, the deformation of the carton will reach 2cm, which means that the compression resistance of the empty carton can reach 500 kg. This policy is referred to when stacking cartons. The definition of heavy cartons: the two policies of heavy cartons must be high and the quality must be good. The author understands these two policies, the bursting strength should be greater than 25kgf/cm2, and the compression resistance of empty cartons should be greater than 2000 kg.

only when such a policy is reached, can it be used by customers near the wood board with a thickness of one centimeter, instead of working boxes. Classification and advantages and disadvantages of heavy-duty cartons: AAA corrugated cartons on the market are composed of three A-lines. The base weight of face paper and base paper is more than 280 grams, and the corrugated core carton is more than 170 grams. Benefits: reliable function, which has won trust among users. It can replace most wooden packaging.