Pneumatic cylinders with oil or water

    I ask this question before buying the cylinder, because I have never had one. I plan to buy 2 pneumatic cylinders with oil inside and use them as manual actuators, that is, I pushed it on one side and on the other side the strength goes out.

    My question is: it is possible to do that?

    Note: I know the difference between tire and hydraulic, the thing is that it is easier to buy pneumatic cylinders than the hydraulics, besides that they do not sell Small Hydraulic Cylinders (in Amazon, for example). That's why I want to comprise the tire.

    Example: https://www.amazon.com/-/es/gp/product/B07DYPM7X9/

  • panic mode May 6, 2021 at 1:47 AM

    Approved the thread.

    of course it is possible. liquids don't compress as easily as gases so this is simple replacement of the media. if you cannot get all air bubbles out, those bubbles will be compressed and cause in softer action (less positionally accurate). long term compatibility is another story. there may be some corrosion due to water contact or failure of seals if they get dissolved or hardened by oil. but... if that happens, that is what maintenance is for...

    btw. what do you mean by "tire"? is that a typo for air?

    1) read pinned topic: READ FIRST...

    2) if you have an issue with robot, post question in the correct forum section... do NOT contact me directly

    3) read 1 and 2

    Quote from panic mode

    of course it is possible. liquids don't compress as easily as gases so this is simple replacement of the media. if you cannot get all air bubbles out, those bubbles will be compressed and cause in softer action (less positionally accurate). long term compatibility is another story. there may be some corrosion due to water contact or failure of seals if they get dissolved or hardened by oil. but... if that happens, that is what maintenance is for...

    btw. what do you mean by "tire"? is that a typo for air?

    I want to use a pneumatic cylinder as a hydraulic.

    I'm going to buy this: https://www.amazon.com/-/es/gp/product/B07DYPM7X9/

    And this: https://www.amazon.com/-/es/gp/product/B08FR11BLK/

    And this oil: https://www.amazon.com/-/es/gp/product/B001FAE4T2

    I will explain it better.

    My Stepper mottor will move an endless screw that will move the cylinder A and the cylinder A will move to the cylinder B.

    Remember that cylinders are tires and I want to use them as closed hydraulic cylinders. That is my question. Is this possible to do?

    principemestizo Note that this switch is only possible if you are going to be working at low pressures. If you stick to manual input-output, you should be fine, but if you ever switch to a higher-pressure application, the internal seals of the cylinder's rod will potentially fail.

    Hydraulics (seals, fittings, etc) are designed to function at high pressures, while pneumatics are designed to function at low pressures.

    I work on both systems - our hydraulics operate at 3000 PSI (low for a hydraulic system), while our pneumatics operate around (I think) 120 PSI.

Advertising from our partners