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Unread 08-12-2005, 06:23
Mr.G Mr.G is offline
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Re: Where to get miniature hydraulics? OR...

In your investigations you may want to consider a thing called "air over oil". This way you don't need a hydraulic pump and all the other equipment. If you already have pneumatics on whatever you are building and only need 1 or 2 motions then air-over-oil may sound like the better option.

Here are some animations

In this one the cylinder on the left could be a pneumatic cylinder with air on top, or a pressure reservoir with air pressing directly on the fluid.
http://travel.howstuffworks.com/animation31.htm

Here is another variant.
http://www.airhydraulics.com/Product.../Animation.htm
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Unread 08-12-2005, 10:54
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Re: Where to get miniature hydraulics? OR...

Brake cylinders are kind of small and the junk yard is full of them.
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