Refrigerated Box Trucks For Sale
Over the past decades, the food industry has evolved dramatically. Supermarkets now offer fresh produce from around the globe and their chilled cabinets are full of ready-prepared food which can be heated in the oven or microwaved in a matter of minutes.
This change in our cooking and eating habits has had a direct effect on the haulage industry. The food must be kept fresh and be delivered quickly in good condition and this means that there are more refridgerated trucks than ever on our roads. The refridgerated truck is certainly one of the more complex box trucks for sale on our website as it involves technology not associated with standard trucks.
Truck drivers may know much about engines and transmissions, but until recently they have had less need to know about refrigeration units. So when buying a used refridgerated truck and browsing through refridgerated box trucks for sale it could help to understand a little about the technology involved here.
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The fridge unit has three major elements, namely the evaporator, condenser and compressor. The compressor s job is to suck in the refrigeration gas and compress it. This pressure causes the gas to turn into a liquid, releasing heat and causing that liquid to cool. The condensing unit then takes this cooled liquefied gas and cools it still further. This is achieved by passing the liquid gas along tubes, where external fins transfer heat to the outside world. This is similar to how the large surface area of a truck s radiator cools the engine. The evaporator unit then allows the liquid to expand and it becomes a gas once more. This process causes it to heat up and it does this by sucking in heat from the surrounding environment – in this case the fridge body of the truck. The warmed gas is then transferred outside the truck to cool and the process begins again.
The type of fridge truck you should buy depends upon the loads you will be carrying. Some fridge trucks are more like freezer trucks, rated to keep food frozen. Others are intended to keep fresh food chilled. Not all trucks can do both jobs, so it is vital that you check the fridge truck meets the regulations for the specific food types you will be hauling. As with buying a normal truck, size is a factor when buying a fridge truck, but be wary of the complications. In order for the fridge truck to function effectively, there should be clear space all around the load. This means buying a larger body than normal for the size of load.
The fridge components are normally covered by separate warranties and service agreements to those of the main truck, so these need to be inspected and understood. The insulation of the body itself is a vital component of the fridge truck and this should be in good order. If it s damaged or of poor quality, it will need more energy to chill and that means more fuel consumption. Drivers should check the insulation for cracks or gaps, and it is a good idea to ask if the fridge unit and insulation are factory-fit or aftermarket additions. Also check for bad smells, which can be difficult to eradicate and taint fresh produce, potentially resulting in complaints from clients.
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