need a tiny ram. and i mean tiny - PbNation
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Old 08-09-2007, 10:28 PM #1
nadrepadre
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need a tiny ram. and i mean tiny

ok so for a very cool project i am attempting i will need a very small ram. The entire body of it must be 1 inch or shorter. it must be able to take up to 120 psi. i would also prefer if the body was square or rectangular. it must be of 2 way operation(back and forth).
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Old 08-09-2007, 10:31 PM #2
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im sure somebody has to have one just lying around in their spare ram drawer, i know i used to
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Old 08-09-2007, 10:33 PM #3
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I'm pretty sure cocker rams are 1" stroke exactly, if you need shorter than that just go to clippard.com and they'll be able to give you a ram to your exact specifications.

EDIT - actually, I might have some extra cocker rams burning a hole in my pocket, just making that known *wink*

Last edited by Mkriegs : 08-09-2007 at 10:35 PM.
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Old 08-09-2007, 10:35 PM #4
nadrepadre
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i checked but i couldn't really find what i was looking for. it needs to be like 1/4'' stroke or less
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Old 08-09-2007, 10:36 PM #5
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http://www.airsoldier.com:8080/cgi-b..._Code=FLEXTUBE

like that?
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Old 08-09-2007, 10:40 PM #6
nadrepadre
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i looked at that, but wheres the piston for it?
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Old 08-09-2007, 10:46 PM #7
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I dunno actually...it's an actuator though. I can't findmuch info though
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Old 08-09-2007, 11:14 PM #8
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look at macdev cyborg rams, i'm not quite sure of the spec on em, but check em out and see
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Old 08-10-2007, 08:51 AM #9
nadrepadre
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i cyborg ram is for opening and closing a poppet. They are about 10X bigger than what I need.
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Old 08-10-2007, 08:57 AM #10
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Could always custom machine it.
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Old 08-10-2007, 08:59 AM #11
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yeah that would take a while.
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Old 08-10-2007, 09:29 AM #12
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Single acting (spring return) will let you get a much smaller cylinder for the most part. McMaster-Carr 7725K1 is a single acting cylinder that is only .87" long, I think you will be hard pressed to find a commercially available double acting cylinder in that size range (Clippard doesn't list any quarter inch throw cylinders that are double acting, let alone that small).
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Old 08-10-2007, 09:47 AM #13
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after some thought, yeah i spring return cylinder would work great!
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Old 08-10-2007, 09:50 AM #14
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can you give me a part number on the one thats .87'' long? I can't find it
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Old 08-10-2007, 09:53 AM #15
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wait, a cycle of 1/4 an inch wouldnt allow more paintballs to feed into the breech, since a paintballs diameter is a little less than 3/4 an inch. but that is assuming you will use this to move the bolt.
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Old 08-10-2007, 10:00 AM #16
nadrepadre
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nope, its not for the bolt.
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Old 08-10-2007, 10:16 AM #17
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Quote:
Originally Posted by nadrepadre View Post
can you give me a part number on the one thats .87'' long? I can't find it
I already did, it is 7725k1

http://www.mcmaster.com
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Old 08-10-2007, 10:21 AM #18
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try looking at a Hybrid halfpint ram.


those things were damn near 1 inch long

http://www.pbreview.com/products/reviews/2782/
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Old 08-10-2007, 10:32 AM #19
nadrepadre
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i already found what i'm looking for.
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Old 08-10-2007, 10:36 AM #20
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what do u need this for
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Old 08-10-2007, 11:29 AM #21
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its a secret...
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