Basic knowledge of air transportation,Allytrans Logistics Co., Ltd

Basic knowledge of air transportation

1.1 what is volume weight, how to calculate it, and how to distinguish between heavy goods and pickled goods

1.1.1 actual weight:

Actual weight refers to the weight obtained by weighing (weighing), including actual gross weight (G.W.) and actual net weight (N.W.). The most common is the actual gross weight.

In air cargo transportation, the actual gross weight is often compared with the calculated volume weight. Whichever is larger, the freight will be calculated and charged.

1.1.2 volume and weight:

Volumetric weight or dimensions weight refers to the weight calculated by the volume of goods according to a certain conversion coefficient or calculation formula.

In air cargo transportation, the conversion coefficient for calculating volume and weight is generally 1:167, that is, one cubic meter is about 167kg.

For example:

The actual gross weight of one ticket of air cargo is 95kg and the volume is 1.2m3. Calculated according to the air transportation coefficient of 1:167, the volume weight of this ticket of cargo is 1.2 * 167 = 200.4kg, which is greater than the actual gross weight of 95kg, so this cargo is empty cargo (also known as dumping and light cargo, English name is light weight cargo or light cargo / goods or low density cargo or measurement cargo), Airlines will charge by volume and weight rather than actual gross weight. Please note that air transportation is generally referred to as bubble cargo, and sea transportation is generally referred to as light cargo, which is called differently.

Another example is:

The actual gross weight of one air cargo is 560kg and the volume is 1.5m3. Calculated according to the air transportation coefficient of 1:167, the volume weight of this cargo is 1.5 * 167 = 250.5kg, which is less than the actual gross weight of 560kg. Therefore, this cargo is heavy cargo (English Name: dead weight cargo, heavy cargo / goods or high density cargo). The airline will charge according to the actual gross weight, Not volume weight.

In short, the volume weight is calculated according to a certain conversion coefficient, and then the volume weight is compared with the actual weight. Whichever is larger is charged according to that.

1.1.3 billing weight:

The English name is chargeable weight, or C.W. for short, which is the weight used to calculate freight or other miscellaneous expenses. The billing weight is either the actual gross weight or the volume weight,

Billing weight = actual weight vs volume weight, whichever is greater is the weight for calculating transportation expenses.

1.1.4 calculation method of volume and weight

（1） The calculation method of express and air transportation is generally:

Rule item:

Length (CM) × Width (CM) × Height (CM) ÷ 6000 = volume weight (kg), i.e. 1cbm ≈ 166.667kg.

Irregular items:

Maximum length (CM) × Maximum width (CM) × Maximum (CM) ÷ 6000 = volume weight (kg), i.e. 1cbm ≈ 166.667kg.

This is an internationally accepted algorithm.

In short, a cubic meter weighing more than 166.67kg is called heavy cargo, and a cubic meter weighing less than 166.67kg is called pickled cargo.

Heavy goods are charged according to the actual gross weight, and pickled goods are charged according to the volume and weight.

matters needing attention:

1. CBM is the abbreviation of cubic meter, which means cubic meter.

2. Volume and weight are also measured by length (CM) × Width (CM) × It is calculated by height (CM) ÷ 5000, which is not common. Generally, only express companies use this algorithm.

3. In fact, the division of heavy goods and pickled goods in air cargo transportation is much more complex. For example, according to different densities, there are statements such as 1:300, 1:400, 1:500, 1:800, 1:1000, etc. The price varies with the proportion.

For example, 25 yuan / kg for 1:300 and 24 yuan / kg for 1:500. The so-called 1:300 means that 1 cubic meter is equal to 300 kg, 1:400 means that 1 cubic meter is equal to 400 kg, and so on.

4. In order to make full use of the space and load capacity of the aircraft, heavy cargo and pickled cargo are generally reasonably matched. Air cargo stowage is a technical work - if well matched, it can make full use of the aircraft's limited space resources and even greatly increase additional profits. Too much heavy cargo will waste space (if the cabin is not full, it will be overweight), and too much pickups will waste the load capacity (if it is not up to the maximum weight, it will be full).