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grommet machine

Discussion in 'General Signmaking Topics' started by noack214, Feb 4, 2010.

  1. noack214

    noack214 Member

    Jan 20, 2010
    i want to purchase a grommet machine but i would like to know what is the thickest matieral i can put a grommet through. example what if by chance a customer wants 1/4 in media with grommets ( more than likely never happen just want to know)
  2. Liquid GraphX

    Liquid GraphX Member

    Apr 11, 2006
    You usually put grommets in material because it is to weak to handle the pressure in one point so it spreads it out evenly (or close to it) and keeps it from ripping. If you had 1/4 material it would be to heavy to hang without some kind of frame. If it is coroplast or something of that nature then they make plastic hangers for that.
  3. zmatalucci

    zmatalucci Very Active Member

    I put grommets in coroplast all of the time... even 10mm
  4. StopSignGraphics

    StopSignGraphics Active Member

    Jun 2, 2009
    It depends on the material and the grommet.

    I normally stock normal grommets for vinyl and long neck grommets for anything thats thicker than vinyl (coroplast, sentra, etc....)

    Anything a 1/4 thick I usually will drill a hole before I install the grommets.

  5. jiarby

    jiarby Major Contributor

    Feb 11, 2007
    you can buy different dies and different grommets to match your material thickness.
  6. bob

    bob Major Contributor

    Nov 4, 2005
    You are only limited by the length of your grommets and the throat opening of your grommet press. On some materials and with some grommets you may have to manually drill or punch the holes, depending.

    Grommets in fabric material, such as banner material, provide an anchor point with sufficient surface area so as not to pull out of the material. Grommets in rigid materials, such as coroplast etc, mitigate abrasion and pulling out of the material is usually not an issue.

    If you're in the market for a grommet press, understand that they all do the same thing in the same way. The only real difference between machines is throat depth and the quality of the die. The die is precision machined to provide just enough, but not too much, friction to hold the grommet over the media. Pacific rim knock offs often have such poorly made dies that they have to work upside down, with the die on the bottom and the anvil on the press. These are a ***** to use requiring two or more steps, even with self piercing grommets and, in general, aren't worth having around.
  7. noack214

    noack214 Member

    Jan 20, 2010
    im fine with drilling my own holes the owner of my shop just wanted to know what he could do with one and what were the limitations thanx for all the input im guessing banners and coraplast will be its main function just wanted to know about it a little more once again thanx
  8. Finishline Signs

    Finishline Signs Active Member

    Jul 3, 2008
    Crestview, FL
    We put grommets in 1/4" PVC from time to time. It works great and we don't even have to drill the holes first. The grommet machine will punch right through it.

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