Pneumatics

Pneumatics is like hydraulics, but it uses air instead of liquid. Air can be squeezed into a smaller space. This compressed air stores energy. When the air is released, it pushes with force. Pneumatic tools, air brakes, and even some doors use this technology.

How Pneumatics Work

A compressor squeezes air into a tank. The compressed air is stored at high pressure. When the air is released through a tube, it pushes with force. This force can power tools, move pistons, and operate machines. Unlike liquids, air can be squeezed, which gives pneumatic systems a cushioning effect.

Pneumatic Tools and Machines

Jackhammers use compressed air to pound on concrete. Nail guns use air pressure to drive nails into wood. Bus and truck doors often open and close using pneumatics. Dentist drills use compressed air to spin at very high speeds. Even the tube systems in some bank drive-throughs use pneumatics.

Fun Facts

• The air brakes on big trucks and trains use pneumatics to stop safely.
• Some amusement park rides use pneumatics to launch riders at high speed.
• Compressed air can be stored in tanks and used when needed, making it a form of stored energy.

Did You Know?

In the late 1800s, Paris had a citywide network of pneumatic tubes that sent mail across the city using compressed air. Letters could travel from one post office to another in minutes!