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Thread: Vacuum Pumps

  1. #1
    Join Date
    Mar 2001
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    280

    Default Vacuum Pumps

    I'm looking for a vacuum pump for laminating/veneering, but the prices I'm seeing for 4 - 6 cfm units are a bit steep for me. Anyone know of an affordable solution within reach for a reasonably well equipped HSM?

  2. #2
    Join Date
    May 2003
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    52N 122W Western Kanuckistan
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    Default

    So, how does one pump a vacuum?

    You don't need a "vacuum pump", just a decent air pump that will pull a few inches negative pressure. How exactly do you intend to employ it?
    Free software for calculating bolt circles and similar: Origin now settable to bottom left! All values positive. Click Here

  3. #3
    Join Date
    Jul 2006
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    Dracut, Massachusetts
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    962

    Default

    Quote Originally Posted by Evan
    So, how does one pump a vacuum?
    My boss who has spent most of his career working around vacuum chambers often describes himself as "an expert on making nothing."

  4. #4
    Join Date
    Jul 2001
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    Idaho Panhandle
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    438

    Default

    An old milking machine pump may be just what you need. Check with local dairies that have shut down.
    Jim

  5. #5
    Join Date
    Mar 2001
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    280

    Default

    Application is wood laminating and veneering. First application is gluing skins to torsion boxes up to 4' x 8' or so. I could screw them down, then pull the screws and fill the holes when the glue has set, but vacuum would be more convenient.

  6. #6
    Join Date
    Mar 2005
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    Oroville, WA
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    10,761

    Default

    http://www.dream-models.com/eco/vacuumpump.html

    Since the pumps can be free you can increase CFM cheaply by ganging them (or correct the leaks at the source).

  7. #7
    Join Date
    Oct 2004
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    Prestatyn, North-Wales
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    5,995

    Default

    look for :_

    USA made Thomas comp ...



    as in picture ..this is one i found a while back in 2009 ..cost 6..it is also a vacuum pump.

    all the best..markj

  8. #8
    Join Date
    May 2011
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    292

  9. #9
    Join Date
    Jan 2003
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    Deep in the Heart of Texas!
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    5,651

    Default

    Price varies by cfm and the amount of vacuum you want to draw. Do you really need 4-6cfm? You can get an automotive air conditioner vacuum pump in the 1-2cfm range that will draw enough vacuum to vaporize (boil) an ice cube for less than $100. I also have one that will rip the skin from your hand and suck all the fluid and tissue out of your arm in less than three milliseconds. But that's probably not the one you want.

  10. #10
    Join Date
    Aug 2001
    Posts
    8

    Default How to get around the cost of a large vacuum pump.

    How about having a large vacuum tank and a small vacuum pump to pull a vacuum in it. This way you would be able to use a smaller pump and still have a almost instantaneous vacuum on your product when needed by opening a valve to your product. This is done when one manufacturer I know makes Hot Tubs (Spas) from a flat sheet of plastic when it is hot enough to form without cracking. ------don

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