Large shipping boxes have a very unique corrugated structure, compared with ordinary cardboard and wood plywood of the same thickness, its areal density is much smaller. Take the 5-layer AA type corrugated cardboard as an example, its thickness is about 10mm, but its comprehensive compressive performance is comparable to that of a 6mm steel strip wooden box of the same thickness, but its surface density is only 1/2 of that of ordinary cardboard of the same thickness. According to actual calculations, the weight of all-paper heavy-duty cartons can be 50% lower than that of wooden boxes of the same specification, which not only saves raw materials and production costs, but also reduces transportation costs, reduces labor intensity, and avoids damage to internal products caused by brute force handling.

A-type corrugated is the main structure of heavy-duty cartons. The number of corrugated units per unit length is small, and the height and spacing are larger, which makes heavy-duty cartons have better cushioning performance, especially suitable for medical equipment, etc., which have high requirements for impact and collision. Product packaging.

Compared with wooden boxes, heavy-duty cartons can be packed without special tools, and there is no risk of damage to human body and equipment due to wooden box burrs and sharp steel belts. In addition, in order to avoid the inconvenience caused by heavy-duty cartons piled up too high for handling and installation, you can choose to put the product on the heavy-duty corrugated cardboard hoarding method, which is not only conducive to packing, but also the forming operation is very fast and convenient, not Tools such as bolts or nails are required. When corrugated cardboard hoardings are not used, they can be folded and stacked for storage to reduce transportation costs and storage space.

In the process of ocean transportation, due to temperature difference, humidity and other reasons, the storage and transportation conditions are extremely harsh, and water condensation is easy to occur. Because the hollow structure inside the heavy-duty carton is filled with air, it forms a typical aerodynamic exchange model with the external environment, which strengthens the energy alternation between the inside and outside of the heavy-duty carton and promotes the dynamic balance of temperature and humidity inside and outside, thus effectively avoiding In order to prevent the occurrence of hydraulic condensation, compared with common wooden box packaging, heavy-duty cartons can better protect the transportation safety of large equipment.

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