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MCD pneumatic motion

Valued Contributor
Valued Contributor

Hello everybody. 


I want to make a pneumatic cylinder simulation.i have created a Pneumatic Cylinder and valve but i got this error:



My Cylinder and valve parameters are shown below:




So can anybody help me ?  which parameter i should change ?


Re: MCD pneumatic motion

Siemens Legend Siemens Legend
Siemens Legend

Hello alicanaydogan,


there are a couple values I would change. One of the most important values is the "Nominal Flow" (the value should be much less).

I will add an example (MCD NX12.0.2) and here are some screenshots that can be used as reference:

ugraf_2018-08-07_07-17-27.pngMCD Pneumatic Cylinderugraf_2018-08-07_07-17-20.pngMCD Pneumatic Valve



Best regards


Re: MCD pneumatic motion

Valued Contributor
Valued Contributor

Thank you so much Viktor , it's very helpful to me. But i want to ask you something too Smiley Happy


First ; referring this aswer:


shouldn't total amount of Volume extension A and B be equal max stroke ? 


Second; i'm triying to learn pneumatic and MCD. How can i improve this? Can you reccomend me any book or manuel ?

In some topics NX Help doesn't explain clearly.


Re: MCD pneumatic motion




Thanks for the info. My query is why you are using 4-way Pneumatic valve with single rod cylinder as 3-way is for single rod cylinder and 4-way is for double rod cylinder.

The other question is what should be the values for 3 way Pneumatic Valve? Can you also please share any formula or something for calculating these numbers? Your reply will be very much appreciated.


Thank you