With the increasing types of goods storage and transportation, some goods are prone to decay and deterioration under the influence of external temperature, humidity and other conditions during storage and transportation. In order to maintain the original quality and use value of perishable goods and improve the safety of goods transportation, refrigerated trailers are more and more widely used in logistics transportation.

If the transportation industry wants to make money, it is very important to choose a "reliable" means of making money, especially the refrigerated trailer. Due to the special goods it carries, it puts forward higher requirements for the performance of the vehicle.

So, when choosing a refrigerated trailer, what should we start with?

1. Selection of car body

The compartment of refrigerated trailer needs to ensure good sealing and heat insulation performance. Generally, the car body structure adopts a three-layer structure, the inner and outer skin adopts composite materials, such as FRP and color steel, the middle interlayer adopts thermal insulation materials, such as polyurethane foam materials, and the outer side uses high-strength adhesive to bond the inner and outer skin and the middle interlayer together to form a sealed whole.

Attention shall be paid to the water absorption, air permeability, thermal conductivity, corrosion resistance, etc. when selecting the car body. At the same time, it shall have good temperature stability and shall not affect the performance due to the change of temperature.

2. Selection of refrigeration unit

Refrigeration unit is a refrigeration system used to control the temperature of goods during transportation, including compressor, power system, condenser, evaporator, refrigeration pipeline and control device.

As the goods are particularly sensitive to temperature, once the refrigeration unit has problems, the loss is not only the freight, but also the high payment for goods.

Refrigeration units are divided into independent units and non independent units. If it is used for short-distance distribution between urban areas or districts and counties, it is recommended to use non independent units, which is cheap and convenient for maintenance even in case of failure; In case of medium and long-distance transportation, it is recommended to select an independent unit. In case of failure during transportation, the refrigeration unit can still work normally to meet the refrigeration needs of goods.

3. Chassis selection

It is generally necessary to determine the chassis tonnage by considering the type and quality of transported goods and the volume of insulated cargo boxes. For example, large tonnage refrigerated trailers are suitable for long-distance inter provincial transportation, medium-sized single vehicle transportation vehicles can be used for long-distance transportation in the market, and light refrigerated vehicles and micro refrigerated vehicles are suitable for short-distance transportation and urban distribution.

When selecting the chassis, attention should be paid to its bearing capacity, fuel consumption, emission standards, etc., and the matching and selection of axles. This is because the goods transported are usually not stored for a long time. Although refrigeration equipment is equipped, they still need to be sent to the destination quickly. If there is a fault on the road, it is easy to cause the deterioration of the transported goods and huge losses. The axle is directly related to the load-bearing, braking, stability and driving force transmission of refrigerated trailer. Choosing a high-quality axle can ensure the performance of refrigerated vehicle chassis.

In view of the particularity of goods transported by refrigerated trailers, it is recommended to choose disc axle + air suspension under Darong group. Darong disc axle adopts lightweight design, which is more durable. It is built with improved special technology, and the bearing capacity and service life are greatly enhanced. Darong air suspension is made with 3D forming technology, which has obvious advantages in self weight and better toughness, can reduce axle stress, and has multiple advantages in cargo protection, driving safety and tire wear, so as to ensure the attendance rate of refrigerated trailer and improve safety performance and economic benefits.