In recent years, the development scale of cold chain transportation has become larger and larger. Many industries such as catering, fresh food and medicine need the support of cold chain transportation. Therefore, the cold chain transportation market also continues to improve. However, many people are not very clear about what is "cold chain transportation", or think that as long as the goods are transported by refrigerated truck, it is cold chain transportation.

In fact, if strictly speaking, there are still some differences between refrigerated transportation and cold chain transportation.

By definition:

1. What is cold chain transportation?

Cold chain transportation refers to the transportation mode that keeps the transported goods at a certain temperature in the whole process of transportation, such as loading and unloading, handling, changing the transportation mode, changing the packaging equipment and so on.

2. What is refrigerated transportation?

The use of high-quality transportation methods such as heat preservation and refrigeration refers to the rapid transportation of perishable goods.

It can be seen that the main difference between the two definitions is that refrigerated transportation requires goods to maintain a certain temperature during transportation, while cold chain transportation requires goods to maintain a certain temperature during the whole process of transportation and transshipment, not only during transportation, but also during loading, unloading and handling.

In terms of transportation temperature, cold chain transportation temperature requirements are mainly divided into three categories:

1. Frozen transportation (- 18 ℃ ~ - 22 ℃): provide standard frozen transportation vehicles for transportation, such as frozen food, meat, ice cream and other goods.

2. Refrigerated transportation (0 ℃ ~ 7 ℃): provide refrigerated transportation vehicles that meet the standards, such as fruits, vegetables, beverages, fresh dairy products, flowers and plants, seedlings, cooked food products, all kinds of cakes, all kinds of food raw materials, etc.

3. Constant temperature transportation (18 ℃ ~ 22 ℃): provide standard heat preservation and temperature control transportation vehicles, such as chocolate, candy, drugs, chemical products and other goods.

It can also be said that cold chain transportation includes refrigerated transportation, which belongs to a kind of cold chain transportation.

However, both cold chain transportation and refrigerated transportation are inseparable from refrigerated trucks, which play an important role in the preservation of goods. Generally speaking, refrigerated vehicles on the market are mainly divided into three categories:

1. Refrigerated truck for distribution in the city: the load capacity is generally 0.5-3t

2. Intercity distribution refrigerated truck: 3-15t

3. Long distance distribution refrigerated truck: 10-20t

Among them, refrigerated semi-trailer is mainly used for long-distance distribution, with large carrying capacity and much higher freight than other models. Of course, the early investment is also relatively large. At present, the price of a refrigerated semi-trailer in the market is generally between 300000 and 800000, which is related to the model, tonnage, brand and parameter configuration. In the face of higher and higher industry standards, many car owners prefer to choose models with higher configurations, which leads to the high purchase cost to a certain extent.

As for the profit of refrigerated semi-trailer, it mainly depends on the source of goods. If the owner finds a suitable logistics company or enterprise to handle the connection, the supply of goods is sufficient and stable, and the transportation document can be obtained every day, or the owner of retail refrigerated semi-trailer can find a fixed supply of goods for delivery, it is certain to make money. According to the feedback of some owners, it is very common to earn 20000-30000 yuan a month.

However, this industry has high requirements for experience, contacts or resources. If the car owner has no familiar people in the cold chain transportation industry and can't find the teacher Fu to take him, it's up to him whether he can make money. After all, cold chain transportation has high requirements on the experience of car owners. How to control the cargo damage under different temperatures, weather and road conditions is still a great test of the experience of car owners. Otherwise, once the cargo damage is serious, it is likely to be unable to make ends meet.

On the other hand, the goods transported by refrigerated trucks are different from ordinary goods, and the requirements for transportation timeliness and transportation stability are very high, which requires application owners to be cautious in the selection of accessories. It is recommended that car owners choose the configuration combination of disc axle + hydraulic retarder + air suspension, which can not only improve the braking sensitivity and uniformity, avoid heat attenuation and increase the braking reliability, but also cushion the impact of the road on the vehicle and reduce the loss of goods. Even in the case of poor road conditions, it can greatly reduce the bumps and vibration of goods.

Compared with the traditional drum axle, the price of disc axle is generally relatively high, and the average price of individual brands can even reach tens of thousands of yuan, which makes many car owners sigh. In fact, when you buy products, you buy quality, performance and service, not brand premium. The quality of axles of many brands is not inferior to that of first-line brands. For example, Darong axle is the representative of domestic cost-effective axles. Now it has 20 years of industry experience. Its "one-piece" axle has stronger load-bearing performance than the traditional "three-piece" welded axle, More durable. Darong axle takes a cost-effective route. Axle products of the same specification can be about 1 / 3 more favorable than first-line brands. Many well-known trailer manufacturers, logistics enterprises and transportation retail investors choose Darong axle as a fixed partner.