Shipping is one of the most important pillars of global trade, and containers are the foundation that makes it possible. Since their implementation in the industry in the mid-20th century, containers have transformed the way we move goods across the oceans. Their standardization has facilitated faster loading and unloading operations and seamless integration with other modes of transport, such as rail and road.
Standard containers: Dimensions and capacities
Standard containers, known as “dry van” or “dry containers”, are the most common in maritime transport. They are designed to transport dry goods that do not require special temperature or ventilation conditions. The standardization of their dimensions under ISO regulations has been the key to enable these containers to be loaded, transported and unloaded with ease at any port in the world.
In terms of sizes, the most commonly used are the 20-foot and 40-foot. The former has a capacity of around 33.2 cubic meters, which makes it ideal for smaller and denser loads. The 40-foot container, on the other hand, offers double the capacity, reaching 67.7 cubic meters, which makes it a perfect option for bulkier goods. The 40-foot containers are also more economical for long distances, as they allow more cargo to be transported, optimizing costs.
What makes these containers even more attractive is their robustness and safety. They are designed to withstand extreme conditions during transit, protecting cargo from inclement weather and other hazards. Their versatility allows them to be used for a wide range of products, from textiles to light machinery.
Special Containers: Refrigerated, tank and more
Not all cargo can be transported in standard containers. For more specific products, special containers are available. Among them, the most prominent are refrigerated containers, tank containers and others such as open top, flat rack and high cube containers.
Refrigerated containers, also known as “reefers”, are indispensable for the transportation of products that require controlled temperature, such as perishable foods, medicines or chemical products. These containers have internal refrigeration systems that maintain a constant temperature throughout the journey, allowing temperature ranges from -25°C to +25°C, as required by the cargo.
Tank containers, on the other hand, are designed for bulk liquids. Thanks to their stainless steel construction, they are perfect for transporting everything from oils and food liquids to volatile chemicals. Safety is crucial with this type of container, as any leak could contaminate the environment and the products being transported.
In addition to these, there are other types of containers such as the high cube, which are higher for bulky goods, the open top, ideal for heavy or large loads that cannot be loaded from the top, and the flat rack, which allows the transport of large objects without the limitations of a closed container.
Choosing the right type is not only a matter of safety, but also of optimizing costs and logistics. By knowing the specifications of each type of container, shippers can make informed decisions that improve the efficiency of their operations.
How to choose the right type of container for your cargo
Choosing the right container for your ocean freight is a key decision, as it directly influences logistics efficiency, costs and product safety. When selecting between different types of containers, it is necessary to take into account several specific factors depending on the characteristics of the cargo.
First, the nature of the product is decisive. For example, for perishable goods, refrigerated containers are required to maintain the right temperature. In the case of liquid products, tank-type containers will be needed to ensure safe transport.
The dimensions and weight of the cargo are also important aspects. It is essential to verify that the measurements of the standard container match those of the cargo, in order to avoid additional costs for the use of special containers or excess volume. In addition, the final destination of the cargo must be taken into account, as some ports have specific regulations on certain types of containers, which could generate extra costs or limit the available options.
Finally, it is important to consider whether the cargo requires additional protection against factors such as weather or adverse sea conditions. In these cases, it will be necessary to choose containers with additional insulation or resistance properties.
Factors to consider when selecting containers for ocean transportation
When choosing the right container, it is important to focus not only on the characteristics of the cargo, but also on the logistics of the journey and market conditions. Beyond the nature of the product, the type of transport and the estimated transit time play a crucial role in container selection. For example, some cargoes may require longer transport time and therefore a container that offers greater protection.
It is essential to evaluate the weather conditions during the voyage, as well as the specific regulations of the destination ports, as these factors may affect the choice of container. In addition, shipping rates vary according to the type of container. Special containers, such as refrigerated or tank containers, are usually more expensive than standard containers, which implies the need to make a balance between cargo safety and economic efficiency.
Finally, considering the availability and flexibility of containers at origin and destination ports can also influence the decision, as some types of containers may not be readily available or may be more expensive depending on the location. By taking all these factors into account, you will be able to optimize your container selection, adjusting it to the logistical and economic needs of shipping.
