Tri-Axle Semi Trailers

If you have heavy loads to carry, particularly over long distances, then a triple axle semi trailer is exactly what you need to do it. These semi trailers have three sets of wheels at the back and so can carry heavier loads due to the additional support they can provide when compared to versions with fewer axles.

Three axles are commonly available on dump trucks, concrete mixers and other vehicles that are particularly used in the construction industry, but they’re also often used for hauling a variety of loads. Such trucks typically have a capacity of 25-30 tonnes although this can be affected by several factors such as how the weight is distributed, and the road surfaces being driven over. Read More

Quad-axle trailers and drop deck trailers are also popular choices for those who require increased stability and load-carrying capacity.

Features & Benefits of a Tri-Axle Trailer

The normal configuration for a three-axle trailer is that it provides increased load-carrying capacity and better weight distribution. The additional axles help to support heavier loads while improving the stability and maneuverability of the trailer. This setup ensures that the trailer can handle larger, more demanding loads safely and efficiently, while also reducing wear on the tires and road surface. Here are some of the advantages of a 3-axle trailer:

  • gives additional carrying capacity by distributing the weight more evenly across the rear axles
  • provides extra stability and control due to the better distribution of weight, which is particularly important over uneven roads and when an especially heavy load is being carried
  • ensures the vehicle is more likely to comply with regulations that impose weight restrictions on vehicles
  • reduces the damage done to roads and bridges by heavy loads, which is the main reason for weight restriction regulations.

For some trailers, the third axle may be raised when no load is being carried, which will improve fuel efficiency and avoid unnecessary wear on tyres. The axle can then be lowered to give additional support when the trailer is loaded. In some cases, the third axle may be steerable, which can improve manoeuvrability in tight spaces.

Improved Ride & Load Capacity with Tri Axle Semi Trailer

The suspension of a tri axle trailer is important to provide the necessary stability, load capacity and a ride that is as smooth and safe as possible. The best type of suspension can depend on how the trailer is to be used, local regulations and the road conditions encountered. The traditional type is leaf spring suspension that comprises layers of metal strips while air suspension is more adjustable for a consistent ride height and can handle different loads. Also available are independent suspension for each wheel, rubber torsion and torsion axle among others.

Choosing the right trailer with the best suspension and axle configuration will ensure you maximise your load-carrying capacity while at the same time providing a comfortable and safe ride that complies fully with all regulations. And all you need to do then is ensure your trailer is correctly loaded and maintained so that it continues to give great service.

To start out right, choose the trailer you need from FWR‘s extensive range. If you are at all unsure, contact us and we will help you get the trailer that is best for you. Read Less

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