Thrall is what Types and characteristics of trawls

Thrall is what? Types and characteristics of trawls

To date, the freight industry is developedvery much. Every day around the world thousands of trucks drive trailers, cisterns, bodies and so on. However, there is a type of trailer that you should talk about separately, because it is very different from the rest - both in appearance and in the way you use it. And he called the trawl. This is the kind of trailer that allows you to transport heavy equipment.

What is a trawl?

trawling it

Many people are not too familiar withterminology of cargo transportation, therefore for them everything that trucks are driven is trailers. In fact, this is the correct answer, but only not quite accurate, because trailers are very diverse. And the trawl is one of them, it is a kind of a low platform, which can easily get into heavy equipment. Trawls are used to transport equipment from one point to another, since the independent speed of such units is usually extremely small, and they are not designed to travel on ordinary city roads. That's why there are trawls - with their help, the technician can be in the right place much faster without damaging the road surface, because we are talking about multi-tonnage machines and sometimes even whole tanks. Tral is an excellent device for transporting goods, but it should be noted that its species can be very much. Therefore, there are even several classification systems, each of which defines different parameters for determining.

By carrying capacity

 low-beam trawl

The first and most common classificationtrawls - by carrying capacity, that is, by the amount of cargo that this trailer can transport. There are four types of trailers, and the first of them is light trawl. This is such a trawl, where you can place no more than 25 tons of cargo. Then follows the average, the carrying capacity of which rises already up to 45 tons. Well, the classic trio is completed by a heavy trawl that can accommodate a cargo of up to 110 tons. But what kind of a fourth kind of trawls, which was mentioned earlier? This type includes special superheavy modules. They can accommodate a cargo weighing more than 110 tons, while they are used to transport special indivisible goods. Such may include, for example, space rockets, whole ships or even buildings. In this case, the low-frame trawl can also be called a platform, it is usually much larger than conventional trailers in the area, extremely bulky, but incredibly effective.

By loading height

trawl trailer

Low-beam trawl is a word combination thatpeople can hear quite often, even if they are not involved in the activities of transportation. The fact is that trawls can also be classified according to the loading height, that is, by the distance from the ground at which the platform itself is located, on which the cargo will be transported. There are two main types - high-frame and low-frame. In the first case, the height of the loading platform above the ground is approximately one meter, and in the second - from 85 to 95 centimeters. The difference is not too high, but in some cases it can play a very important role. But it is also worth noting specialized trawls with a lower platform - in this case its height is not more than 70 centimeters, and sometimes it can be lowered to 40 cm. The trawl is a multi-purpose trailer, so sometimes such low platforms for the delivery of special cargoes are needed.

By type of suspension

trawl semitrailer

One of the most interesting ways is that,which classifies trawls according to the type of suspension used in the trailer. One of the most popular is spring, which is used both on low-frame and high-trawl trawls. However, please note that the trawl is a trailer that has a very large number of configurations, so do not think that the type of suspension will be the only one. There is, for example, a pneumatic suspension that is used on those trawls that have a very low platform height to increase cargo safety. There is also a hydraulic suspension, which is used extremely rarely, but sometimes it can still be found on the heaviest trawls that carry loads of over a hundred tons. Well, do not forget about the balancer suspension, which is used on high-load platforms and does not have springs at all. The choice of suspension is most often independent of what a trawl is - a semi-trailer or a full trailer.

By number of axes

trawl characteristics

It is also worth paying attention to the classification bynumber of axles in the trailer. Here a lot depends on the height of the platform itself, as two or three axles are used most often on high platforms, sometimes you can see even four. But the lower the platform, the greater the number of axles - on especially understated trawls you can meet even seven or eight pieces. But you can be sure that you will never meet one axis, as this would violate the balance, which is very important for a trawl.

Shared trawl

A separate trawl, characteristicswhich is very different from the majority. The fact is that almost all trawls do not disengage from the truck, which carries them - the vehicles arrive at the rear of the platform. But there are also shared trawls that are disconnected from the truck, and the technics come on the platform from the front, after which the platform is again attached to the truck, and transportation begins. As you can see, there are a lot of trawls, and all of them are very different among themselves, performing various important tasks that are set before them.



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