Shippers Ask: How does a reefer trailer work?

How a Reefer Trailer Works

Temperature Control Mechanism:

At the heart of a reefer trailer is its advanced temperature control system. This system typically consists of a compressor, condenser, evaporator, and a thermostat. The compressor plays a key role in circulating refrigerant, which absorbs heat from inside the trailer, keeping the temperature cool. The condenser then releases this heat outside the trailer, maintaining a constant internal temperature set by the thermostat.

Effective communication between the shipper, freight broker, and carrier hinges on clearly specifying the freight's range at the time of tendering. This ensures that all parties have a shared understanding and can set accurate expectations.

Power Sources:

Reefer trailers are versatile in terms of power sources. They can be powered by the truck’s engine while in transit (engine-driven), utilizing the truck’s diesel engine to drive the refrigeration system. Alternatively, they can operate independently using an onboard generator or plug into a stationary power source at loading docks or storage facilities (electric-powered). This flexibility and redundancy ensures continuous temperature control regardless of the truck’s operation.

Insulation and Air Circulation:

Reefer trailers are meticulously designed with high-quality insulation to minimize heat exchange with the external environment. This insulation prevents temperature fluctuations and helps maintain the desired temperature range inside the trailer. Additionally, efficient air circulation systems ensure uniform distribution of cool air throughout the cargo space, preventing hot spots and ensuring even cooling.

Monitoring and Control:

Modern reefer trailers are equipped with sophisticated monitoring and control systems. These systems allow operators to remotely monitor temperature, humidity levels, and other critical parameters in real-time. Alerts and notifications are generated if there are deviations from set parameters, enabling immediate corrective actions to preserve cargo integrity.

Temp Controlled Application & Industries:

Reefer trailers are indispensable in industries such as food and beverage, pharmaceuticals, and healthcare, where maintaining product freshness and quality is paramount. They are used to transport a wide range of perishable goods, including fruits, vegetables, dairy products, meat, seafood, vaccines, and medicines. The precise temperature control provided by reefer trailers helps extend the shelf life of perishable items and ensures they arrive at their destination in optimal condition.

Reefer trailers represent a critical innovation in logistics, enabling the safe and efficient transportation of perishable goods across long distances. Their advanced temperature control systems, insulation, and monitoring capabilities make them indispensable assets in modern supply chains.