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Old 04-22-2006, 08:07 AM
lissettemellado lissettemellado is offline
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Default Pneumatic and Hydraulic systems

Hello, Im having problems in fninding the advantages in using either a hydraulic or pneumatic system. When is one system preferable to the other?

If someone can help me, it would be great!

Thanks

Last edited by lissettemellado; 04-22-2006 at 08:24 AM..
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Old 10-17-2008, 03:36 AM
rabadswompe rabadswompe is offline
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Default pneumatics vs hydrolics

pneumatics, using gas displacement, are less precise because gases compress. Less strung too because of that came compressing effect. pneumatic cylinders are great as car shock absorbers though.

Hydrolics are strong and precise in the movements you make them do. Because liquids do not compress, the "slave" cylinder will only extend or retract to the exact quantity of liquid you choose to pump in or out of it.

My students are making an excavator out of brochette et popscicle sticks and various seringe cylinders (big master cylinders and sall slave ones)

Sorry for the english...I teach in french.

G'day
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