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Thread: What are the tanks for?

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  1. 11-06-2008, 04:23 AM #1
    ckrantz
    ckrantz is offline Registered
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    What are the tanks for?

    All,
    I see vacuum forming machines and they have air tanks attatched to the vacuum pump. Why are they used? what do they do?
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  2. 11-06-2008, 04:28 AM #2
    Geof
    Geof is offline Gold Member
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    When you apply the vacuum to the mold you want things to suck down real fast before the plastic has time to cool. To do this you use a small or medium size vacuum pump to pull a bunch of tanks down to a good vacuum and then use the tanks to pull a vacuum on the mold very quickly.
    An open mind is a virtue...so long as all the common sense has not leaked out.
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  3. 01-19-2009, 06:55 PM #3
    MGDriver
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    To elaborate on what Geof said, vacuum pumps don't pump fast enough, so a vacuum is pulled on the tank instead of just letting the pump pull it on the part.
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