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Unread 19-03-2004, 00:04
Biff Biff is offline
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AKA: Tom Cooper
#1227 (Techno Gremlins)
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Join Date: Jan 2004
Location: Grand Rapids MI
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Biff is a jewel in the roughBiff is a jewel in the roughBiff is a jewel in the roughBiff is a jewel in the rough
Re: Mulit-postioning with pnuematics this year?

Earler in a thread (I can't find it now) someone mentioned doubles with "center off"
After asking where did they get such a thing, the reply was from their local SMC dealer. This got me going in the right direction. The double valves SMC gives First, (and then us) Have a part number SY3240-5LOU on them according to SMC ordering info; this is a 3000 series 2 positon double 24 volt (but they are labled 12 volt, I suspect this is why we get them) 300 mm lead wire and I am having touble figureing out what the O is, the U is with indicator light and surge suppressor (non-polar) What our local supplier has is a SY3340-6LOU The second three in the number is what tells you it's a 3 position closed center valve, the 6 indicates 12volts. We got two and they bolt right on the body with the fittings on them, they are not pulsing and they only will "pull in" with the correct polarity, red to positive. This solved our problem, we were having trouble with our piston action not being to go from down to up, once started down you had to go all the way down. I think this is do to the nature of pilot valves. Any way, on our pretend-a-bot programming table this valve works great and we got them at about $60.00 dollars as we didn't get the wires or the fitting body. We are also putting the flow control fittings on the ea and eb holes on the fitting body and can have different speeds for up and down. Hope this helps

Last edited by Biff : 19-03-2004 at 00:47.