What is the standard load capacity of a semi-trailer in tons

The standard load capacity of a semi-trailer varies depending on the model and configuration, typically ranging from 10 tons to 55 tons
The standard load capacity of a semi-trailer is not a fixed value, but is determined based on factors such as vehicle type, number of axles, configuration, and local regulations. The following is a detailed analysis of the load capacity of a semi-trailer:
1. Relationship between number of axles and load capacity
Single axle semi-trailer: The standard load capacity is 10 tons.
Double rear axle semi-trailer: The standard load capacity is 18 tons.
Three rear axle semi-trailer: The standard load capacity is 24 tons.
Six axle semi-trailer: The maximum load capacity can reach 55 tons.
2. Total traction mass and load mass
The total mass of a tractor is usually 40 tons, and after subtracting the weight of the trailer, the remaining part is the load mass. For example, when the trailer weighs 8 tons, the load mass is 32 tons.
For a six axle semi-trailer, the maximum total towing weight is 55 tons, and after subtracting the trailer's own weight, the load weight usually does not exceed 35 tons.
3. Configuration and load capacity
Ordinary configuration semi-trailer: With a load capacity of about 40 tons.
High configuration semi-trailer: Such as special transport vehicles, with a load capacity of up to 120 tons.
4. Regulations and regional differences
According to China's road transportation regulations, the total weight of heavy-duty semi trailers usually cannot exceed 49 tons (including the cab), but specific restrictions still need to be determined based on the vehicle's axle type and local regulations.
For example, a 13.5-meter-long semi-trailer has a national maximum load capacity of 34 tons, but the actual load capacity May vary depending on the vehicle model and type of cargo.
5. Vehicle type and purpose
Light semi-trailer: The load capacity is usually between 10 and 25 tons, suitable for transporting light cargo.
Heavy duty semi-trailer: Such as flatbed trucks, container trucks, etc., with a load capacity of over 40 tons, even up to 60 tons, suitable for transporting heavy or large goods.
Summary: The standard load capacity of a semi-trailer varies depending on the model, number of axles, configuration, and regulations, typically ranging from 10 tons to 55 tons, with high-end models even reaching up to 120 tons. The specific load capacity needs to be determined according to the vehicle type and local regulations.