How To Choose Suitable Axle For Semi Trailer

A semi trailer axle is a supporting axle that does not have steering or driving functions and is specifically designed to bear the weight of a semi trailer. For semi-trailers, the axle is one of the key conditions determining its load-bearing performance, and also undertakes functions such as ensuring braking, buffering bumps, and maintaining driving.

To ensure the attendance, safety, and economic benefits of semi trailers, it is crucial to choose a high-quality axle, especially in severe driving conditions such as mountainous roads, rugged terrain, and multiple bends, which impose strict requirements on the performance of the axle. The common axles on semi trailers are mainly divided into the following types:

1. Drum Axle.

Drum axle is the most widely used type of axle on semi trailers and currently has the highest market share. Compared with other axles, the most obvious advantage of drum type axles is that their prices are relatively low, their accessories are basically commonly used in the industry, and their design is simple, making subsequent maintenance and replacement more convenient. From the perspective of braking performance, drum axles are equipped with sealed brake drums, which have a large braking friction area and can provide more sufficient braking force for semi trailers, especially heavy semi trailers.

Therefore, drum type axles can be widely used in various types of general cargo transportation, such as the transportation of heavy goods such as sand and gravel, steel coils, wood, coal, etc.

2. Disc Axle.

The disc axle uses exposed brake discs instead of sealed brake drums, greatly improving heat dissipation, resistance to thermal decay, and resistance to water decay. In addition, the disc axle has optimized the brake transmission components, which can immediately drive the brake pads after pressing the brake. The braking response speed is fast, and the linear stability is strong, making the braking more stable.

In terms of application, disc axles are more suitable for transportation conditions with high requirements for cargo damage, such as dangerous goods transportation, precision instrument transportation, precious goods transportation, flowers, fruits and vegetables transportation, etc