Sea containers that are widely used, incl. in the field of road and rail transport, are manufactured in accordance with a single standard. Initially, the container classification system was developed in America, but due to the fact that these standards did not fit well in European conditions, the ISO 830 1981 standard was created, which is currently the main one.
The establishment of uniform parameters, regardless of the purpose of the container, is a technological necessity that makes it possible to effectively use them in international trade traffic: to prepare and equip terminals, to manufacture automobile loading platforms of the required dimensions, to complete railway trains, etc. Modern products are standardized according to the following key parameters:
- dimensions;
- gross weight;
- design of connecting devices to transport;
- a variety of gripping attachments for handling equipment.
The priority operational criteria of containers are such indicators as length, width (including the width of the doorway), internal quadrature and permissible weight of the transported cargo. The latter indicator, together with the tare of the metal container, is the gross weight.
In the Russian market, containers of 20 and 40 feet standards are very popular, less often 45. As practice shows, overall dimensions of a 40-foot container allow solving a wide range of tasks in the field of cargo transportation, for which they have gained wide popularity among consumers.
A standard 40 'steel container has the following parameters:
- external dimensions: 12192 mm (l.), 2438 mm (w.), 2591 mm (h.);
- internal dimensions: 12022 mm (l.), 2352 mm (w.), 2395 mm (h.);
- maximum load: 26580 kg;
- cargo capacity: 67.7 m 3 .
A variation of this container is a 40-foot "High cube" type with increased capacity:
- external dimensions: 12192 mm (l.), 2438 mm (w.), 2895 mm (h.);
- internal dimensions: 12022 mm (l.), 2352 mm (w.), 2700 mm (h.);
- maximum load: 26330 kg;
- cargo capacity: 76.4 m 3 .
In terms of their demand, the closest analogues of 40-foot products are not far away. For example, internal dimensions of a 45-foot container with a cargo capacity of 86.5 m 3 Is an indispensable solution for the transportation of bulky and lightweight cargo.
Despite the existence of an official system of standards, the internal dimensions and cubic capacity of products may slightly differ from the specified parameters, depending on the manufacturer.