Dolly semi-trailers for sale, from professional manufacturer
This trailer is designed to solve the overload problem of a large tonnage. Usually ordinary semi-trailers use a structure of two axles and one line, but dolly trailers can have multi-lines, such as 4 axles and 16 tires, and are usually used to transport heavy cargo. Each axle of a dolly trailer loads 50 percent of the weight. Many countries are only allowed to have each axle of a vehicle loading 10 tons, so the dolly trailer has two effects: one is to disperse force, reducing the pressure on the front, and the second is to reduce the weight loaded by each axle.
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Able to load more cargo
More robust structure
Large turn angle
Less wear on the tires
If you need hydraulic low bed trailers, check this: Hydraulic Modular Trailer