Take a closer look at the prospects and problems of sling transport

Swing transport, also known as swing loading and unloading, adopts the mode of "one car and multiple hangs" to achieve the logistics transport effect of "people stop parking". Compared with the traditional "one car and one hang", the suspension transportation can greatly improve the transportation efficiency, improve the utilization rate of vehicles, and maximize the benefits.

1. Definition of sling transport

Sling transport refers to the transport organization mode in which the trailer is unloaded with the goods at the cargo loading and unloading point, and the trailer filled with other goods continues to run to the next cargo loading and unloading point trailer axle.

Because the time of loading and unloading of goods is greatly reduced, the time of vehicle outage is also effectively shortened, the mobility performance of the tractor is improved, and the turnover efficiency of the vehicle is improved, which is of great significance for the reduction of logistics costs, the promotion of energy conservation and emission reduction, the improvement of the overall quality of economic operation and the promotion of the development of modern logistics and transportation.

2, the characteristics of suspension transportation

Advantages:

① People stop parking, vehicle operation efficiency is improved.

Under the same transportation conditions, the efficiency of vehicle transportation depends on the load of goods, loading and unloading time, the speed of the vehicle and other factors, which greatly saves the parking waiting time of the vehicle during cargo loading and unloading, and also improves the operating efficiency of the tractor.

② Reduce the number of tractor purchases and reduce investment costs.

Since the transport tractor can be used repeatedly to tow different trailers, it does not have to be matched according to the traditional "one car and one hang", so under the same conditions, logistics companies can reduce the number of tractors, so as to reduce investment costs.

③ Reduce the empty load rate of vehicles and improve the use of vehicles.

Under the suspension transportation, the vehicle can set foot on the new journey after the replacement of the trailer at the loading and unloading point, and there is almost no emptying situation, and a lot of unnecessary fuel consumption can be saved over the course of a year to further reduce costs trailer axle.

Weaknesses:

① The initial investment cost is huge.

Engaged in dumping transportation, the investment cost of the first phase is relatively large, millions or even tens of millions.

② Need sufficient supply to support.

For the sling mode, the more sufficient the supply of goods, the more efficient the transportation efficiency, otherwise it is easy to cause time and cost consumption due to such goods, and even empty loads, affecting the marketing transportation efficiency.

3. Classification of suspension transportation

① One line two points one end hang

The vehicle is transported between two points A and B, hung from A, transported to B and unloaded, and then the tow truck is empty or towed back to A to continue the next round of transportation trailer axle.

② One line two points both ends hang

The vehicle is transported between two points A and B, hung up from A, transported to B, unloaded, and then directly hung up another loaded trailer to return to A for the next round of transportation.

③ Multi-point loading and unloading cycle hanging

Multiple loading points present a closed cycle, with a certain number of turnover trailers, the tractor arrives at a loading point to unload the trailer, hangs another loaded trailer to the next unloading point, the next unloading point is repeated the same operation.

4, the necessary conditions for suspension transportation

① Standardization of vehicle equipment technology

In suspension transportation, a tractor needs to be adapted to multiple trailers, which requires the matching of the tractor and the trailer to be enhanced, and the production of the trailer to be standardized and generalized, so as to meet the frequent picking and hanging between the tractor and the trailer.

② Vehicle performance to meet standards

In the suspension mode, it is almost "stop and stop, people stop and stop", and the vehicle must be long-lasting and durable in order to meet this continuous transportation.

③ The construction of freight sites should be improved

Sling transportation needs the site to meet the operating standards, and can provide sufficient space for lifting, parking, loading and unloading.

The roads are in good condition

Road conditions are directly related to the efficiency of suspension transportation, such as road conditions, congestion and so on.

⑤ Stable and sufficient supply of goods

Both sides of the transfer warehouse source storage is stable, planning to run multi-frequency, flow convection.

5, the application of swing transport in foreign countries

Foreign transport started in the 1940s, has become the main mode of transport in Europe and the United States, almost 70%-80% of large enterprises are using this mode of transport.

In the United States, more van trucks are used to carry out the transportation of less-than-carload goods, and the number of van semi-trailers accounts for almost 70% of the total trailer sales, of which the highest proportion is the long-head 6×4 tractor matching 2-axis van semi-trailers, accounting for about 90% of the van semi-trailers.

Australia in the sling transport in the form of road trains, a tractor to pull a number of trailers, and some even towed 3-6 carriages, the total length can exceed 40 meters, mainly used for ore transport;

In Europe, there is also a tow and two hangs in the form of dumping transport, the total length of the vehicle is more than 20 meters, mainly with soft canopy cars, of which the largest proportion is 4×2 tractor matching 3-axis van semi-trailer.

6, there are many constraints in domestic suspension transportation

① Technical constraints

The domestic trailer market is mixed, the manufacturing threshold is relatively low, the lack of unified technical standards and specifications, some trailers and tractors can not match, restricting the trailer sharing between enterprises and a wide range of suspension operations.

② The cargo volume of the round-trip route is not equal

China is affected by the terrain and the layout of historical cities and towns, the distribution of urban density is not uniform, the industrial layout is relatively scattered, and the source of goods is too scattered. In order to get more supplies, logistics companies need to lay out more lines and vehicles, but not all lines can pull back to the return goods, the amount of goods on the round trip line caused by the empty car fuel consumption, labor costs are not small.

③ Backward logistics management mode

At present, the overall business model of domestic logistics enterprises is relatively backward, and more is the main means of competition to compress profits and fight prices, especially in small companies and individuals, the lack of stable supply of goods required for efficient dumping, transportation integration, distribution scheduling, management capabilities.

④ Lack of information foundation

Suspension transportation needs monitoring, scheduling, loading and unloading and other management systems to support, if the lack of information and digital management, suspension transportation will be seriously restricted. At present, the information level of China's freight industry is relatively low, and most logistics enterprises do not have a perfect information system, which is difficult to meet the requirements of dynamic scheduling and management of transport vehicles and organization of cargo loading.