Trailer axles have been developed for decades in China. In the past few years, there are many large heavy-load trucks such as 100-ton king and 10-ton king in China. Relying on the characteristics of simple and easy maintenance of leaf spring suspension structure and large bearing capacity, they are running wildly, causing a lot of indignation.
After the release of the new national standard GB1589-2016, the total weight of six-axle trailers was limited to 49 tons, 6 tons less than the previous standard, so many manufacturers began to develop lightweight truck and trailer products. Therefore, the trailer axle has also opened the road of lightweight development.
At present, the classification of domestic trailer axles is roughly divided into the following categories:
1. American-style axle: one of the most widely used axle types in China. The commonly seen universal trailers such as three-axle railcars and warehouse railcars are basically used in this type of axle. The 13-ton bridge is the most widely used axle tonnage at present. Its advantages are strong heavy-load performance, simple structure and easy maintenance.
2. German axle: its design structure is more complex than American axle, and the vehicle's high-speed driving stability is better than American axle, but the price is a little expensive. The maintenance should use German special grease. Generally, the German axle will be used in industries with higher requirements for freight vehicles, such as tobacco transportation, instrument transportation, cold chain transportation and express delivery.
3. American disc axle: the product is just needed in the market after the implementation of GB7258-2017. This standard stipulates that three-axle railcars, dangerous goods transport vehicles and warehouse cars must be equipped with disc axle and air suspension after January 1, 2020. This is also for the sake of road traffic safety. Compared with drum axle, disc axle has great advantages in braking system. The disc brake is more sensitive, the brake force is linear, and the brake force is large. The combination of hydraulic retarder and ABS system adds a layer of guarantee to the driving safety.
4. American low flat axle: compared with the general trailer axle, the market of low flat axle is relatively small. Its main application scope is to pull various special machinery, such as cranes, hooks, excavators and other special operating machinery. Its characteristics are low ground clearance, which is convenient for special vehicles to get on and off.
5. Concave axle: The application range of concave axle is smaller, mainly used to transport cars, which is generally known as car carriers.
6. Three-line six-axle axle axle: This axle is mainly used to transport large goods, such as motors, wind turbine blades, large heavy equipment, etc. It belongs to heavy cargo vehicles.
The above is the general classification of domestic trailer axles, covering almost 90% of the trailer vehicles in the market. The above types of axle can be found in Hongkai axle, with reliable quality and reasonable price. It is one of the few cost-effective products in the industry. Now we are no longer blindly pursuing how many tons the axle can carry. The state is now vigorously regulating overloaded vehicles and pursuing road driving safety. We should also follow the national policy. When purchasing trailers, it is better to equip disc axle and hydraulic retarder, which can maximize our driving safety.
