Semi-trailer is developed on the basis of full-trailer. A semi-trailer is a trailer whose axle is placed behind the center of gravity of the vehicle and is equipped with a coupling device that can transmit horizontal and vertical forces to the tractor. The front half of the trailer is placed on the traction saddle above the rear of the tractor. bear part of the weight of the trailer. It has no driving force by itself, and needs to be connected to the tractor with the help of a traction pin, and the driving force of the main vehicle is used to achieve driving. Semi trailers are designed and used to haul oversized and overweight goods such as heavy construction machineries and bulk materials. They are meant to take on high tonnage weight and rough conditions.
There are also many ways of classification, sometimes by use, sometimes by length, sometimes by number of axles; sometimes by material; etc.;
Just like rabbits, there are males and females, there are breeds, black and white, and sizes; in this way, when I see a rabbit, I can say that this is a small black female rabbit with short tails; of course, when there is no special purpose, everyone Usually it just says: Look, Rabbit! The same goes for trailers.
According to the length, there are 20 feet, 40 feet, 9 meters, 12 meters, 18 meters, etc.;
According to the number of axes, there are single-axis, double-axis, three-axis, and even ten-axis, etc.;
According to the material, there are carbon steel, stainless steel, aluminum alloy; etc.;
Compared with full trailers, semi-trailers are mainly used for long-distance cargo transportation. Different types of semi-trailers are suitable for transporting different goods. For example, self-unloading semi-trailers are suitable for the transportation of bulk and scattered goods such as coal, ore, and construction materials, low-bed semi-trailers are suitable for the transportation of vehicles, machines and other heavy-duty goods, and warehouse-type semi-trailers are mainly used for agricultural and sideline products and For the transportation of other light foam goods, tank semi-trailers are mainly used to transport liquids, bulk materials and bulk cement, etc., and van semi-trailers can be used for the transportation of household appliances, light textile goods, building materials and charted goods.
For a long period of time in the past, many semi-trailers were driving on the road with goods that did not conform to their own operating conditions, such as low-bed trailers transporting less-than-truckload goods, pallet trucks transporting liquid goods, warehouse gate trucks transporting frozen goods, etc., not only affects the quality of the goods, but also easily disrupts the market order and is not conducive to transportation safety. With the improvement and promulgation of relevant regulations, the industry has paid more and more attention to special vehicles. Certain goods must be transported in certain vehicles.
It is worth noting that to a certain extent, the use of special vehicles means that semi-trailers in different application fields need to be equipped with accessories of different specifications and requirements.
Accessories for semi trailers
Vehicle Master produce not only various kinds of high-quality semi trailers, but also different trailer parts. For trailer parts, we specialize in trailer axle, trailer suspension, trailer landing gear, and truck trailer tires, which are considered to withstand the most tear and wear over the years aside from the trailer frame. Vehicle Master provides high quality German type and American type axles, Germany type and American type suspensions, trustworthy landing gears that can always get the job done, and different truck trailer tires that provides safety and high efficiency.
Axles for semi trailers
For most types of semi trailers, they may have one single axle, two axles, or three axles depending on the weight that customers require to haul. Depending on the tonnage, trailer axles can also be different. Some of the often-seen tonnages are 25 tons, 28 tons, 32 tons, and so on. Depending on the type of trailers, they can be categorized into axles from normal trailers such as normal cargo fence trailer, normal fence trailer, and normal container trailer, and axles for special trailers such as heavy duty lowbed trailers. Furthermore, when it comes to the structure design of axles, there are American type and German type.
When choosing the right axles for your trailers, a few things must be taken into consideration. We need to know what type of the trailers will be pulling, transportation route, and what type of trailers the axles are for.
Take the axles made by Vehicle Master for example, different types of vehicles are suitable for different types: disc axles are suitable for three-axle fence warehouses, valuable goods/precise instruments transportation, hazardous chemicals transportation and other transportation stability, cargo loss rate Vehicles with high requirements; drum axles are suitable for heavy goods and various general cargo transportation vehicles; German axles are mainly suitable for long-distance freight transportation, cold chain transportation, express transportation, etc. Vehicles; low-plate axles are mainly used for low-plate semi-trailers and sedan vehicles; three-line six-axle axles are mainly used for large or extra-large vehicles; special axles are mainly used for agricultural vehicles.