Freezer trailer

Types of freezer trailers

A freezer trailer is typically used for transporting products that need to be stored in cold temperatures. The trailers come in different types to suit specific needs. They include:

• Reefer trailer

  This is a refrigerated trailer that has a freezer for transport. The trailer also has insulation to ensure that the temperature inside is maintained, regardless of the outside weather. The insulation is made of polystyrene or polyurethane foam. These materials help to create a chill that can last for hours, even when the power is off. The airtight seal also ensures there is no condensation or moisture inside the trailer.

• Freezer van

  A freezer van is a road vehicle that has a refrigeration system. The vehicle is designed to transport goods that need to be kept in cold temperatures. The freezer van can maintain temperatures of up to -20 degrees Celsius. The vehicle is commonly used for the distribution of dairy products, frozen foods, and other perishable goods.

• Dual-temperature trailer

  The trailer is designed with two compartments. Each compartment has its own independent refrigeration system. This allows different types of cargo requiring different temperatures to be transported simultaneously. The trailer is ideal for transporting products such as frozen foods, seafood, and fresh produce.

• Thermal bulk trailer

  The trailer is designed to transport bulk liquids. It has insulation features to maintain the temperature of the cargo. The thermal bulk trailer is commonly used for transporting products such as chemicals, food, and pharmaceuticals. The trailer can maintain temperatures for long periods, even during extended travel.

• Chilled bulk trailer

  A chilled bulk trailer is used to transport bulk goods that must be maintained at cool temperatures. The trailer has a refrigeration system that can cool cargo to temperatures between 0 and 10 degrees Celsius. The chilled trailer is commonly used to transport fresh produce, pharmaceuticals, and perishable goods.

Specifications and maintenance of freezer trailers

Manufacturers of freezer trailers have different specifications for various models; thus, buyers should check the spec sheet of the trailer they wish to purchase.

• Dimension

  The overall dimension and payload capacity of a freezer trailer vary. The standard dimension is 12ft to 28ft in length, 7ft to 8ft in width, and 8ft to 9ft in height. The payload capacity ranges from 5000 lbs to 15000 lbs.

• Insulation

  The insulation material used in freezer trailers is polyurethane foam. The thickness of the insulation varies depending on the model of the trailer, but it ranges from 2 to 6 inches. The insulation has a high R-value, which minimizes heat transfer and keeps the interior cold.

• Refrigeration unit

  The refrigeration unit is vital for maintaining the desired temperature within the trailer. The standard refrigeration unit has a cooling capacity of 5,000 to 20,000 BTUs. The temperature range maintained by the unit is between -10°F to 50°F (-23°C to 10°C). The unit is powered by a standard electrical supply of 110V or 220V.

• Chassis and suspension

  Freezer trailers are designed with a robust chassis made of steel or aluminum. The trailers also come with an efficient axle system, with the number of axles ranging from 1 to 3. The suspension system is vital for the smooth movement of the trailer. It is designed with leaf springs or air suspension.

• Tires

  The tire size of a freezer trailer varies depending on the model. The standard tire size is 12 inches to 16 inches in diameter. The tires are built with durable materials, such as rubber, which is heat-resistant.

• Interior features

  Depending on the model, interior features such as shelving, lighting, and door configurations may vary. The trailers have interior lighting for visibility, and the shelves provide storage for goods.

The maintenance requirements for freezer trailers are also specified and vary by model. Below are some common maintenance requirements:

• Freezer trailer maintenance starts with cleaning the interior and exterior parts of the trailer.
• Inspect the door seals and gaskets for any damage and replace them if necessary to maintain airtight seals.
• Check the refrigeration unit regularly and do the necessary maintenance as specified by the manufacturer.
• Inspect the trailer for any signs of wear or damage and repair them immediately.
• Ensure the wheels and axles are properly lubricated for smooth operation.

How to Choose Freezer Trailers

Now, what are the factors that affect the choice of a freezer trailer?

• Capacity

  The required storage space must be determined before selecting a freezer trailer. A trailer with more room than is needed may result in wasted energy and higher operational costs, while one with inadequate storage would congest products and raise the risk of spoilage. One should take into account the trailer's cubic capacity as well as the arrangement options that would work best for the products being transported.

• Temperature Control

  The temperature range must be monitored and maintained according to the type of goods being transported. Some items might need a consistent temperature of -20 °C, whereas others might need a flexible range of -18 °C to -15 °C. It is also essential to consider the freezer trailer's insulation quality and cooling system's strength, which should be able to withstand outside temperature extremes.

• Trailer Size and Maneuverability

  The intended route and the places where the trailer will be loaded and unloaded are crucial in determining the trailer's size. A bigger trailer would provide more storage space, but it might be challenging to navigate in crowded urban areas or along small roads. It is also necessary to consider the trailer's weight, which might affect the vehicle's towing capacity and fuel efficiency.

• Power Source

  The trailer's refrigeration system's power source is another important factor. While some trailers have self-contained systems that draw electricity from the towing vehicle, others use a separate generator or an external power source. Each choice has advantages and disadvantages in terms of convenience, operating costs, and dependability.

• Ventilation and Air Circulation

  Proper ventilation and air circulation inside the trailer are vital to ensuring all products maintain consistent temperatures and preventing hotspots. Features like adjustable vents, strategically placed fans, and well-designed shelving units can enhance airflow and temperature uniformity, ultimately reducing spoilage and waste.

• Regulatory Compliance

  Freezer trailers must adhere to transportation regulations and safety standards. This includes aspects like refrigerant handling, vehicle marking, and food safety rules. Non-compliance can result in penalties and legal issues, so it's vital to stay informed about the relevant regulations in the operating regions.

How to DIY and Replace Freezer Trailers

Here is how to replace a freezer trailer step by step:

• Select the Right Freezer Trailer

  Selecting a trailer that meets specific needs, such as size, freezer capacity, and configuration, is essential. The trailer should be in good condition for the following operation.

• Prepare the Vehicle

  Ensure that the car is compatible with trailer attachment and that the trailer hitch is in good condition. It is also necessary to ensure that the trailer's hitch and the vehicle's attachment point are aligned and unobstructed.

• Connect the Freezer Trailer

  Position the trailer behind the vehicle, then slowly and carefully back up until the trailer hitch aligns with the vehicle's attachment point. Raise the trailer's tongue and insert the hitch ball into the ball socket. Secure the hitch by fastening the handcuff or latch. Connect the safety chains in a crisscross pattern. Ensure the chains are not slack or overly tight and that they are securely attached to both the trailer and the vehicle.

• Connect Electrical Connections

  Connect the vehicle's electrical system to the freezer trailer's power system. Ensure that all connections are secure.

• Check the Trailer's Level

  After the trailer is connected to the vehicle, check it to ensure it is level. If the trailer is not level, adjust the attachment point.

• Check Security and Stability

  Once the trailer is attached to the vehicle, conduct a security and stability check. Ensure that all connections and attachments are secure and that the trailer is stable during travel.

Q&A

Q1: What is a freezer trailer used for?

A1: Freezer trailers are mobile refrigeration units. They are designed to provide temperature-controlled environments for transporting goods that need to be kept frozen or chilled. Businesses use them for food deliveries, event catering, construction, and other industries that require temperature-sensitive shipments.

Q2: How does a freezer trailer work?

A2: The trailer has a refrigeration system that maintains the desired temperature inside the cargo space. The temperature can be monitored and adjusted to ensure the cargo remains within the specified temperature range. The trailer is insulated to minimize heat transfer and energy efficiency. Freezer trailers can be towed by different vehicles, making them versatile and convenient for various transport needs.

Q3: How big are freezer trailers?

A3: Freezer trailers vary in size and capacity to accommodate different transportation needs. Generally, they range from small units of about 10 feet in length to larger units of 30 feet or more. The size of a freezer trailer is determined by the business's specific needs, such as the type of refrigerated cargo and the quantity to be transported.

Q4: Do freezer trailers need to be refrigerated all the time?

A4: Yes, they must be refrigerated all the time to maintain the desired temperature. The continuous refrigeration system ensures that cargo remains frozen or chilled throughout transportation, preventing spoilage or degradation of quality.