There is no minimum weight.
A 53-foot semi-trailer typically weighs around 14,000 to 15,500 pounds when empty. This weight can vary depending on the materials used in its construction, such as aluminum or steel. Additionally, the weight can be affected by any additional features or equipment installed on the trailer.
Most trailers are semi trailers. You're probably asking the difference between a semi trailer and a full trailer. A semi trailer is not wholly self supporting, and weight is distributed both the trailer axles, and to the tow vehicle. A full trailer supports its own weight fully.
The weight capacity for semi trailer is 80,000 LBS. That is calculating with two or more consecutive axles to the nearest 500 LBS.
You have to put your weight evenly between your trailer axles and your trucks rear axles. You have to know the weight limit of your truck and trailer, it should say in the owner's manual or you can read the weight limit on the tires. The majority of the weight should be on the trailer because if you put most of the weight on the truck the trailer will begin to fishtail. If it is a flatbed trailer and you look along the side you will see that it bows up, you should never load it to were it bows down because it is probably overloaded at that point. Also you should read the owner's manual to learn how to move the axles on the trailer.
The "tractor" is the vehicle which actually powers the combination. A semi-trailer is any trailer in which the weight of the trailer (and the payload) is shared between the trailer's axles and the axles of either a dolly or the towing unit (in contrast, a full trailer supports all of its own weight).
Generally on a semi-tractor trailer the limit is 80,000lbs
Depends on the type and size of the rig, but a typical tractor weighs 15,000# and a 53' enclosed van trailer weighs about 13,000#, for a total of 28,000 lbs. Most US highways have an 80,000 pound weight limit, so the load capacity or maximum net weight of a typical tractor-trailer is 52,000 lbs.
As evenly as possible between the drive and trailer axles.
A semi trailer is any trailer which doesn't fully support its own weight. That's the ver batim definition. A boat trailer for private use is not regulated the way a commercial use trailer is.
The load on the king pin on a semi trailer can be calculated by weighing the vehicle. When weighing the vehicle on a certified scale, the steers (front tires), drives (the two axles on the semi cab) and the tandems (the two axles on the trailer) are all weighed separately as a part of the whole weight. The king pin weight is the weight of the drives.
14,000 lbs