Hydraulic

 The hydraulic systems uses force to exert the liquid, they basically compress liquid and so the energy is transmitted equally in all direction of the container on top of the surface. This is caused by Pascal’s Law. Most hydraulic systems use oil rather than water to be compressed. The reason for this is, water is a corrosive and is poor lubricant. Many, or most of the hydraulic systems uses of two piston, one, a metal cylinder that can slide upwards and downside a tube.

Pneumatic

 The pneumatic need the required pressurized gas to transmit force. This happens because of the operated compressor. This makes the compression toward the gas. A pneumatic systems can produce a very large force. The compressor is to compress air and stores the air into the tank, known as the receiver.

Difference

 The different between these two is hydraulic uses liquid while pneumatic uses gas/air. Pneumatic produces a greater force then hydraulic. Also the hydraulic system is cheaper, this reason is that the hydraulic system is smaller then the pneumatic system. The second reason is the hydraulic system is simpler than the pneumatic system.

Example

Hydraulic

• Pump/valve
• Car lift/hydraulic lift
• The brake system of a 4-door car

Pneumatic

• Nail gun
• Jack hammer
• Dentist drill