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  1. ewelly

    Pneumatic logic circuit

    Thanks all for helping the novice, I appreciate all suggestions. Hydtools, it looks like running in series will work great, I was making it way more complex than needed when such a simple fix is right there. Thanks again.
  2. ewelly

    Pneumatic logic circuit

    Have attached a sketch of the main parts, obviously still need something to make it work.http://files.engineering.com/getfile.aspx?folder=6708cd2d-cb7e-4a32-98ad-51663bdefe57&file=cutter_pneu.pdf
  3. ewelly

    Pneumatic logic circuit

    Thanks, I will looke thru the book. The limit valves at each end are to turn off air to the valve operating the cutter. Basically if it is not parked at either end I need the cutter to be on. I need to have all pneumatic, no electrical switches etc.
  4. ewelly

    Pneumatic logic circuit

    Let me try again. The stroker is a linear slide driven by an air motor. The cutting head attached to the trolley on the slide will move off of the LS when an operator moves a hand valve to drive the stroker air motor. When it reaches the end of travel it stops by a hard stop and stalls the air...
  5. ewelly

    Pneumatic logic circuit

    Hi, I have a pneumatic logic question. I have an application where I need to have valve X pass air unless one of two limit valves is made. My issue is whatever I come up with dumps line pressure thru the exhaust of 1 limit when the other is made. Thought about a shuttle valve but this will...

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