Types of Reefer Trailers
A reefer trailer, also known as a refrigerated trailer, is a trailer that is towed behind a truck or other vehicle and is used for transporting goods that require temperature control. Specifically, these trailers have built-in refrigeration units. They come in various sizes and types to meet different needs within the logistics and transportation industry. Here are the common types of reefer trailers:
Single-Temp Reefer Trailers
These are the most common types of reefer trailers. Single-temp reefer trailers maintain a constant temperature throughout the trailer. This temperature setting is typically adjustable within a certain range. These trailers are ideal for transporting goods with similar temperature requirements, like fresh produce or frozen foods.
Multi-Temp Reefer Trailers
Multi-temperature reefer trailers are designed to create different temperature zones within the same trailer. This is achieved through the use of partition walls, temperature control systems, and insulation. These trailers are ideal for transporting goods with varying temperature requirements, like pharmaceuticals with different temperature-sensitive products and food products with different storage needs.
Controlled Atmosphere Reefer Trailers
These reefer trailers are designed to maintain specific atmospheric conditions, like reduced oxygen levels and increased carbon dioxide levels. This is crucial for extending the shelf life of perishable goods, especially during long-distance transportation. Controlled atmosphere reefer trailers are commonly used for transporting fresh fruits and vegetables.
Insulated Reefer Trailers
Insulated reefer trailers offer high levels of insulation to maintain the desired internal temperature for extended periods. These reefer trailers are particularly useful for long-haul transportation where frequent access to the cargo isn’t possible. Insulated reefer trailers can minimize temperature fluctuations and reduce the energy load on the refrigeration unit.
Plug-in Reefer Trailers
Plug-in reefer trailers are designed to be plugged into electrical power sources when not in transit. This allows for continuous temperature monitoring and control, reducing energy consumption and increasing the efficiency of the refrigeration unit. These types of reefer trailers are particularly useful for transporting temperature-sensitive goods over long distances.
Size:
Reefer trailers come in different sizes, from 28 feet to 53 feet. The length of the trailer is important because it determines the amount of cargo that can be transported. For instance, larger trailers can transport more cargo than smaller trailers.
Insulation: Reefer trailers are designed with insulation to help maintain a constant temperature inside the trailer. The insulation material used in these trailers is usually foam. The thickness of the insulation is important because it helps reduce heat transfer.
Temperature Range:
Reefer trailers have a wide temperature range, which allows temperature control. The trailers are fitted with cooling systems that are powerful enough to maintain the set temperature. The temperature range for a reefer trailer is between -20 and 20 degrees Celsius.
Loading System: Reefer trailers are designed with different loading systems, such as side doors and rear doors. The loading system plays an important role in loading and unloading cargo. For instance, a trailer with a side door is easier to load and unload compared to a trailer with a rear door.
Reefer Trailer Suspension: The reefer trailer suspension system is designed to provide a smooth ride. This is important to maintain product quality during transportation. The suspension system is also fitted with air suspension, which makes it easier to load and unload cargo.
Below are the maintenance requirements for a reefer trailer;
Cooling System:
The cooling system of the reefer trailer needs frequent inspections. This is because the cooling system is responsible for maintaining the set temperature inside the trailer. The condenser and evaporator coils should be cleaned regularly. In addition, the refrigerant levels should be checked to ensure there are no leaks.
Electrical System:
The electrical system of the reefer trailer should be maintained regularly. This involves checking the electrical cables and connections to see if there are any signs of damage. The electrical system also requires regular battery charging.
Tire Maintenance: The reefer trailer tires should be inspected regularly. This is important to ensure they are properly inflated and have the required tread depth. Tire pressure is important because it ensures even wear and fuel efficiency.
Trailer Reefer Gaskets:
The gaskets on the reefer trailer should be inspected regularly. This is because the gaskets are important to maintain the set temperature by sealing the trailer. In case the gaskets are worn out, they should be replaced to prevent any temperature fluctuations.
Insulation: The insulation of the reefer trailer should be inspected regularly. This is important to ensure it is in good condition. In case the insulation material has started to wear out, it should be replaced immediately. Damaged insulation can lead to temperature fluctuations inside the trailer.
How to Choose Reefer Trailers
Choosing the right reefer trailer for business needs can be challenging, considering the various designs, features, and specifications available. Here are some simple tips to guide business buyers in making the right choice.
Load Capacity
Consider the load requirements before purchasing a reefer trailer. A business that deals in bulky products may require a trailer with a larger capacity, while one that transports smaller products may need a trailer with a smaller load capacity. Ideally, the load capacity of a reefer trailer ranges from 5000 to 15000 pounds.
Insulation and Construction
The insulation and construction of a reefer trailer are vital components that business owners should consider. The insulation and construction of a reefer trailer determine its ability to maintain consistent internal temperatures. Look for trailers constructed with quality materials such as aluminum or steel, as they provide effective insulation and durability.
Temperature Control System
The temperature control system of a reefer trailer is another key factor to consider. The temperature control system should be able to set and maintain the required temperature for goods being transported. For example, goods that require freezing temperatures during transportation will need a reefer trailer with a robust temperature control system.
Size and Dimensions
Business owners should consider the available loading docks and warehouse space when choosing the size and dimension of a reefer trailer. Additionally, the height and width of the trailer should allow easy loading and unloading of goods.
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