What coolants do shipping containers use?
Shipping containers, also known as refrigerated or freezer containers, have become an indispensable tool for transporting goods that require precise temperature control. These specially designed containers, often referred to as “reefer” containers, are equipped with sophisticated refrigeration units that ensure a stable temperature is maintained from -25°C to +25°C, depending on the needs of the goods being transported. In this article, we look at the different types of coolants used in these containers.
Main types of coolants
R134a
R134a coolant is one of the most commonly used in shipping containers. This type of refrigerant is known for its stability and cooling efficiency. R134a is used in many standard refrigeration units and offers a temperature range of -25°C to +25°C. It is a proven choice for a wide range of applications, including the transport of food, pharmaceuticals and other temperature sensitive products.
R404A
Another popular coolant is R404A. This type of refrigerant is especially popular for its high cooling ability and reliability. R404A offers a temperature range of -30°C to +35°C, making it ideal for transporting deep-frozen products. In the future, this type is expected to be replaced by the more environmentally friendly R452A refrigerant.
R452A
R452A is a modern replacement for R404A. This type of refrigerant is designed to have a lower global warming potential (GWP) and be more environmentally friendly. R452A offers similar cooling properties to R404A, but with a lower environmental impact.
CO2 (R744)
CO2, also known as R744, is an environmentally friendly refrigerant that is increasingly used in modern refrigerated containers. Although it has a higher energy consumption, its environmental benefits make it an attractive option for companies looking to reduce their carbon footprint. CO2 has a temperature range of -65°C to +45°C, making it ideal for special applications such as transporting vaccines or biotechnology materials.
Modern cooling technology
Modern refrigerated containers use advanced technology to ensure precise and reliable temperature control. The most popular technologies include TK Magnum PLUS and Daikin LXE. These systems are designed to provide rapid cooling and economical operation. In addition, they are equipped with software that optimises the performance of the cooling units at all temperature conditions.
Ecological aspects
When choosing coolants, it is important to consider their environmental impact. Traditional refrigerants such as R134a and R404A have a higher GWP, which means they contribute more to global warming. Modern alternatives such as R452A and CO2 are designed to be more environmentally friendly, making them a more sustainable choice for the future.
Maintenance and service
Maintenance of refrigeration units is crucial for their long-term reliability and efficiency. Replacing the coolant and regularly checking the refrigeration systems ensures that the containers are always ready for the harsh conditions of transport. Modern technology allows for rapid replacement of refrigeration units, minimising downtime and ensuring continuous operation.
Freezer shipping container 20’Reefer
Other container news...
What is the floor load capacity of a shipping container (kg/point)
The load capacity of a shipping container floor — and especially its expression in kg/point — is one of the least understood, yet essential, technical parameters encountered by anyone who handles, loads, or uses containers for storage or modular construction. While the total payload of a 20-foot container of 28,000 kg is generally known, the point load value determines whether the floor will survive the concentrated pressure of a single wheel of a forklift or the foot of a heavy machine — and this is often the decisive parameter for safe operation.
Shipping Containers Komárno Slovakia
Shipping containers are standardized metal transport units designed primarily for the transport of goods by waterways, especially rivers and seas. In the context of Komárno, located at the confluence of the Váh and Danube rivers in Slovakia, shipping containers play a key role in the logistics infrastructure of the region. They are robust, closed containers that enable the safe and efficient transport of various types of goods. Shipping containers in the city of Komárno are an essential part of the functioning of the local port, which is among the second largest port and transport hubs in Slovakia.
Shipping Containers in the City of Dunajská Streda Slovakia
Shipping containers in Dunajská Streda represent a flexible, economical and ecological solution for logistics, storage and construction. Their popularity is growing, both in traditional applications and in innovative architectural projects. Whether you are looking for a solution for storage, transportation or want to build a modern space, shipping containers offer countless options with an excellent price-quality ratio.
Shipping Containers Dubnica nad Váhom Slovakia
Shipping containers are a fundamental building block of modern international trade and logistics. In Dubnica nad Váhom, a town in Slovakia near the Váh River, they are playing an increasingly important role in transport and storage solutions. Whether it is for transporting goods, storing goods or innovative construction projects, shipping containers have become an indispensable tool for the local business community.