A pneumatic spring is a type of spring that uses compressed air to provide force and support. Unlike traditional metal springs, which rely on mechanical tension, pneumatic springs can adjust their stiffness and height by changing the air pressure inside them. This makes them versatile for various applications, including automotive suspensions and industrial machinery. These springs are often used in systems where weight reduction and flexibility are important. They can absorb shocks and vibrations effectively, improving comfort and stability. Pneumatic springs are commonly found in air suspension systems and cushioning devices for sensitive equipment.