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Magna VS Fireball

Discussion in 'Magna-Matic' started by blairbuc, May 18, 2002.

  1. dobehap

    dobehap LawnSite Senior Member
    Messages: 292

    Did a quick search and found an 8" wheel, speed rated at 3450 max RPM

    Also they rate their wheels at 36 Grit,

    What grit are your wheels and can they be used on a traditional grinder?

  2. Magna-Matic

    Magna-Matic Sponsor
    Messages: 839


    A 36 grit wheel is more coarse, and will take a bigger bite out of the mower blade leaving a rougher cut - and will break apart a bit faster because of it being more coarse.

    We use 46 grit "I" hardness - dimensions 7 x 1 x 1-1/4"

    Our wheels, and this type of wheel will not fit in a normal grinder because of the arbor hole size - they are made for SURFACE GRINDERS --- NOT --- bench grinders.

    The grinding wheel alone is not the only factor that allows our sharpeners to sharpen so quickly.

    See this info

    Thank you,
  3. blairbuc

    blairbuc LawnSite Member
    from CT
    Messages: 154

    another point for Dobehap to consider is that Magna-Matics wheel being softer sheads the heat from the blade. The other wheel rated fot for the high RPM may or may not have this quality.
  4. parkman

    parkman LawnSite Member
    Messages: 9

    I used a magna-matic 8000 for a few weeks and it doesn't even compare to the old fireball 300-C I have been useing at work for 10yrs.

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