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Each one has its advantages and disadvantages so it depends on what you wish to achieve.

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What are the properties of gases used in pneumatics?

Gases used in pneumatics should be non-toxic, non-flammable, and environmentally friendly. They should also have low moisture content to prevent corrosion and be easily compressible to allow for energy-efficient operation of pneumatic systems. Additionally, gases used in pneumatics should have consistent properties to ensure reliable performance in various temperature and pressure conditions.


Where are pneumatics used?

Pneumatics are used in a variety of applications, including automotive systems (such as brakes and suspension), industrial machinery (such as pneumatic tools and actuators), and medical devices (such as respiratory machines). They are also commonly used in robotics for tasks like gripping and moving objects.


What are the characteristics of air in pneumatics?

In pneumatics, air is used as the working fluid to transmit power. It is compressible, meaning it can be easily compressed to store energy and transmit force. Air is also readily available, inexpensive, and non-toxic, making it a popular choice for pneumatic systems.


With regard to compressibility how the working fluids in pneumatics and hydraulics differ?

Fluids are used in Hydraulics - fluids are essentially incompressible - they transmit forces well (e.g. a car bottle lack) Gases are used in pneumatics - gases are compressible - you can therefore store energy in a pneumatic system (e.g. a car tyre)


Why are train doors operated with pneumatics?

Pneumatics have the advantage over Hydraulics in that they are clean, require lower maintenance and respond quicker. When the application does not require that much force, pneumatics will do the job. Furthermore: the force needed for train doors should not be that large. It should only open and close the doors but not crush people that manage to get stuck in between