What type of brake system uses air for operation in commercial vehicles?

The pneumatic brake system is specifically designed to use compressed air to operate the brakes in commercial vehicles. This system relies on air pressure to engage and disengage the brakes, providing several advantages that are suitable for heavy-duty vehicles.

One of the key features of pneumatic brakes is their ability to generate strong braking force, which is necessary for larger and heavier vehicles that require more stopping power. The air pressure can travel long distances within the brake lines, making these systems effective for complex vehicle configurations, such as those found in tractor-trailers.

Additionally, pneumatic systems are less likely to suffer from fluid leaks that can occur in hydraulic systems, as air is generally easier to contain than hydraulic fluid. This contributes to enhanced reliability and reduced maintenance requirements in a commercial setting.

In summary, the pneumatic brake system is integral to the safe and efficient operation of commercial vehicles due to its effective use of air pressure for braking.