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Hydraulic ram force calculation help?

  1. Nov 7, 2012 #1
    Hi, I was wondering how to calculate the force of a hydraulic ram in Newtons if the piston diametre is 20mm and the oil pressure is 52 bars. I would like it if someone could explain the formula as i can only find it with psi and imperial units on google. Also I have the shaft diametre of 4mm, I don't know if this is relevant

    Thanks
    Jim
     
  2. jcsd
  3. Nov 7, 2012 #2

    SteamKing

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    Formulas are generally given so that they work with consistent units. Are newtons, mm, and bars consistent units?
     
  4. Nov 7, 2012 #3
    I don't know. I probably sound a bit thick but I'm doing some homework for college and its beyond me.
     
  5. Nov 7, 2012 #4

    SteamKing

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    Well, show us the formula you found online. We can start with that.
     
  6. Nov 7, 2012 #5
    Ok here is the question. Calculate the force of the hydraulic ram when the oil pressure is 52 bars, the piston diameter is 20mm and the rod diameter is 4mm. I understand that I multiply the pressure by the area of the piston but I'm not sure weather I need to convert anything.
    Thanks
     
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