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  1. #1
    Join Date
    Dec 2011
    Location
    Australia
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    69
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    Vac pump powered by an air compressor



    Has anyone used a vac pump thats powered by air ? i bought one a fews days ago . waiting until it comes from eerm china .

    http://www.ebay.com.au/itm/360351906...84.m1497.l2649

    they say it pulls a full vacuum in 2mins ha. cant wait to put vaccy stat on it . are these just the same as a normal 2 stage pump or a little faster? or just crap waste of money?



  2. #2
    Join Date
    Jul 2006
    Location
    USA
    Age
    67
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    708
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    18

    Re: Vac pump powered by an air compressor

    These only go to 28.3 inches of Mercury.
    Not low enough for professional use. A amateur at home might get away with it.

  3. #3
    Join Date
    Sep 2003
    Location
    ISRAEL
    Age
    65
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    4,098
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    37

    Re: Vac pump powered by an air compressor

    Using compressed air as power supply increases the electricity consumption by 8 times.

    Pneumatic systems are the highest power consuming.

  4. #4
    Join Date
    Sep 2008
    Location
    england
    Posts
    430
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    14

    Re: Vac pump powered by an air compressor

    It`s a vacuum generator. It uses compressed air passing over an orifice to create a vacuum. They`re often used in the print industry to lift card into sheet fed presses. Horrendously inefficient. Whenever we come across them we advise replacement with a side channel vac pump or combined blower and vac pump, usually carbon vane to eliminate possible oil contamination.

  5. #5
    Join Date
    Dec 2011
    Location
    Australia
    Posts
    69
    Rep Power
    6

    Re: Vac pump powered by an air compressor

    yeah i was going to send it back . i didnt read it correctly because i was on my phone .. cheap crap! .

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