Analysis of advantages and disadvantages of mid-axle car carriage semi-trailer

Since the implementation of GB1589, the car industry has suffered a very big impact. At the same time, the new standard specifically adds the provisions of the mid-axle car, which can reach 22 meters in length, compared to the articulated train can be 5 meters longer trailer axle. Therefore, in the eyes of some people, the mid-axle car is the new direction of the future car industry. In foreign countries, the middle axle car has been popular for many years.

After visiting the market, many people were not interested in such vehicles. Today, let's talk about what the advantages and disadvantages of the central axle car are, and why the country should promote it.

It can be longer without favoritism

Unlike the semi-trailer, the main car part of the mid-axle trailer is not the traction locomotive, but the truck chassis. Its tow hook is located lower under the main car chassis, so the chassis of the mid-axle trailer can also be made lower.

For coupes that move up and down two rows at every turn, the advantages of a low chassis are obvious:

1. Lower center of gravity, safer;

2. Height restrictions can be avoided, and the vehicle can be tilted to improve capacity.

So let's talk about the key point: length. Mid-axle coupes have a shorter wheelbase and therefore a smaller relative turning radius. In this way, under the premise of ensuring the same bend passability, the length of the middle axle trailer can be longer.

In other words, a mid-axle trailer can turn a small corner while a semi-trailer can't. If you think about it, is that true? Therefore, it is not true that laws and regulations are biased, and people have this matter become longer.

The advantage of being longer is obvious, you can pull more cars.

In addition, the load-bearing requirements of the middle axle trailer for the front car are not high, and the load in the vertical direction of the hook is smaller. It's like a hand-pushed trolley, with a good counterweight, it can be very light.

So let's sum up, the advantages of the mid-axle car are:

1. Low chassis, low center of gravity, more stable, the car can be tilted to improve space utilization;

2. Under the same turning radius, the middle axle trailer trailer axle can be made longer and increase the loading capacity;

3. Low bearing requirements for the front car.

To sum up another point, there are two reasons why the mid-axle car can DORA:

1. Low chassis, car can be tilted;

2. Trailers can be made longer.

● Market technology is not mature for further development

There are two sides of the word, there is good and there is bad, so many people don't like it is also a reason. Its disadvantages are mainly in the following aspects.

First of all, many card friends may have been ready to spray me when they saw me praising the low chassis. Don't shoot. We're all on our own. The domestic road situation is really not flattering, and the low chassis will lead to a significant reduction in passability, which is really not good.

Price is a more immediate issue. According to the news we have learned before, during the trial period, the price of a mid-axle trailer can reach more than 300,000. With the mass production of such trailers, the price should be greatly reduced, and we will tell you the specific price after learning about it. However, because the market share is still very low, the degree of mass production is certainly less than half the trailer, so the price should still be higher than the semi-trailer.

For new things, many people are worried about the quality of its products. So far, the middle axle trailer is still rare in the market, and even many practitioners have not heard of it. This market situation makes everyone dare to rest assured to start, after buying back may even be difficult to find accessories.

In addition, the driving difficulty of the middle axle trailer may be increased. After all, there are not many drivers with such trailer driving experience in China, and they do not understand its performance, and it takes a certain amount of time to get started and skilled, which will cause great losses, and many logistics companies are unwilling to try.

Since there is no air connection valve in the hook part, how to brake the trailer part is also a problem. This point must be asked clearly when buying a car.

Another problem with the mid-axle trailer is that the cab of the trailer axle main car is very troublesome to flip. So when the vehicle breaks down halfway, it is difficult to carry out maintenance.

To sum up, the disadvantages of the middle axle trailer are:

1. Low chassis, poor passability;

2. High price;

3. The product is not mature enough and the market awareness is not enough;

4. Will increase the difficulty of driving;

5. There are technical difficulties in the braking of the trailer;

6. The cab is difficult to flip.