What is the main purpose of the air compressor in a truck?

The main purpose of the air compressor in a truck is to supply air to the air brake system. The air compressor plays a critical role in generating and maintaining the air pressure needed to engage the brakes effectively. In trucks, the air brake system relies on pressurized air to operate, allowing for a more reliable and powerful braking force compared to traditional hydraulic brake systems. This becomes particularly important for heavy trucks, which require effective stopping power to ensure safety due to their size and weight.

While there are other systems in a truck that may utilize air, such as some types of suspension systems and auxiliary components, the primary function of the air compressor is directly linked to the operation of the air brake system. This ensures both the safety of the vehicle and the efficiency of its braking capabilities.