What is a trailer? In fact, there is no unified and clear concept expression for this problem. When you enter "what is a trailer" in the search engine, you can often find many different explanations, which can be summarized as follows:

1. Road clearing vehicle, also known as trailer, road rescue vehicle and towing vehicle, has multiple functions such as lifting, pulling and lifting traction.

2. Tractor, also known as the head, for example, "one tractor and one trailer", refers to one tractor + one trailer.

3. A body that has no driving power of its own. It is said that in the early days, the trailer not only did not have the driving force, but also did not have its own braking force. From this point of view, it is different from the trailer body, because whether it is a semi-trailer, a full trailer or a center axle trailer, it generally has the braking function. However, with the continuous development of vehicle technology, some trailers have added braking function for the sake of safety and other factors, so the difference between them and the trailer body is not so obvious. Owners in some areas often directly refer to trailers as trailers or trailers.

Although the above three types of vehicles can be called "trailer", in the vehicle market, "trailer" generally refers to a body without driving force and capable of carrying independently. What are the common trailers?

1. Flatbed trailer

This is a common type of trailer, which is mainly used to transport goods, especially in logistics warehouses, factory parks, construction sites, airports, ports, wharves, stations and other places. According to the different types of goods, the tonnage varies, generally concentrated in 3t-25t.

Due to different transportation requirements, some flat bed trailers will also be equipped with grate, fence or car body.

2. Agricultural Trailer

Agricultural trailer refers to agricultural vehicles mainly pulled by tractors, which can also be called agricultural trailers. It is an important mechanized transportation mode in rural China, and can give full play to the role of tractors.

According to different application fields and functions, agricultural trailers can be divided into many types. Their tonnage is generally concentrated in 2t-10t, and there are also special cases. Here are the main categories:

(1) Transport trailer. It is mainly used for the transportation of grain, etc., and the top loading part is mainly fence. Among them, small trailers are suitable for rural short distance or field transportation, and medium-sized or large trailers are suitable for township or rural road transportation.

(2) Dry and wet fertilizer truck. It can be used to sprinkle manure on fields and orchards. Both dry and wet fertilizers can be applied. Compared with manual sprinkling, it has higher work efficiency.

(3) Liquid fertilizer truck. The function is the same as that of the dry and wet fertilizer truck. It is suitable for the liquid fertilizer, and can liberate labor to a certain extent.

(4) Grass / straw pickup Trailer. It can automatically pick up straws scattered in the field or grass scattered in the pasture and collect them in the carriage. It has fast operation speed and high picking efficiency. It can even be used to pick up waste plastic film.

(5) Agricultural machinery transport trailer. Its main function is to transport agricultural machinery, such as harvesters. In order to facilitate the mechanical boarding and alighting, the hydraulic ladder or inclined type is generally used.

3. Automobile / engineering vehicle trailer. The function of this kind of trailer is similar to that of common obstacle removal vehicles. It is mainly used for towing vehicles or engineering machinery, but its model is tractor + trailer type. It is generally designed with hydraulic ladder or lifting chassis.

4. Dump Trailer

Dump trailer refers to the trailer equipped with hydraulic jack. According to the installation position of lifting jack rod, it can be divided into backward dump trailer and side dump trailer. The tonnage is determined according to the actual demand.

5. Travel Trailer

That is to say, the Trailer Trailer, also known as the caravan, is generally designed with tables and chairs, cooking utensils, sanitary ware, lighting and other special facilities, which are mainly used for tourism or camping for field workers. Some models with small tonnage and volume and relatively simple internal facilities can also be called camping trailers.

6. Small / mini Trailer

For example, livestock trailers, motorcycle trailers, marine trailers, luggage trailers, bicycle trailers, etc. these trailers have smaller tonnage, lighter weight, and are more simple and practical.

It can be seen that the trailer has a wide range of applications and powerful functions. Compared with the integrated vehicle, the trailer can be connected or unloaded at any time, which is more flexible and more efficient.

However, the drawback is that due to the variety of trailers, different functions, relatively small tonnage, track width and other parameters, and the lack of unified standards, it is difficult to find a perfect match in the market for the axles it uses, and it is often necessary to carry out customized production according to the detailed requirements.

Those brands that rely on the purchase of semi-finished products for assembly and OEM, and have become popular in the trailer rear axle Market, have to give up this market because they do not have independent R & D and production capacity. To a certain extent, this also makes it more difficult for trailer owners to purchase axles.

Darong group is an enterprise engaged in the R & D and manufacturing of axle / axle for more than 20 years. Its products include disc axle, drum axle, low flat axle, trailer axle, special axle, three line six axle axle, etc. it has made good achievements in the fields of high load-bearing axle beam, lightweight axle, customized production, etc. it can customize 3t-25t axle / axle of various models. It has passed the ISO9001 quality management system certification and has been exported to Europe, America, Japan and Japan for many times Australia and other countries.