What is you experience with the Magna-matic 9000 blade grinder?
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    Gra$$guy728's Avatar
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    What is you experience with the Magna-matic 9000 blade grinder?

    Considering the purchase of the Magna-magic 9000 to hopefully get more life out of the blades. A lot of the grass I cut is bahiagrass on sandy soil which takes a toll on blades.
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    On mine by the time the blades need sharpening they've been sandblasted away to nothing. I just buy them in bulk on ebay and usually just replace them. Very very seldom do I have enough blade left to sharpen them.
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    I'll be following this. I also have bahia grass in sandy soil and I sharpen my blades every other week. I mow 4 acres weekly and buy new blades every season. I just tried out the gator blades today and they work very well cutting but they sure throw a lot of stuff out of the chute. I had to clean the screen on the radiator 3 times today.
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    Old Pa-pa Old Cajun's Avatar
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    I just checked the price on those suckers, WOW!!!
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    Quote Originally Posted by mtrmn View Post
    On mine by the time the blades need sharpening they've been sandblasted away to nothing. I just buy them in bulk on ebay and usually just replace them. Very very seldom do I have enough blade left to sharpen them.
    The sand sure does do a number. I use a 4100 with mid-mount and ZTR's (757,797,960 and 997) on the property so have a lot of blades to sharpen. Currently I just run till the ends are gone and change them out. The grinder is pricey but replacing blades a couple of times a year for each unit is not cheap either.

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    Quote Originally Posted by Robnik View Post
    I'll be following this. I also have bahia grass in sandy soil and I sharpen my blades every other week. I mow 4 acres weekly and buy new blades every season. I just tried out the gator blades today and they work very well cutting but they sure throw a lot of stuff out of the chute. I had to clean the screen on the radiator 3 times today.
    I cut about 35-40 acres every couple of weeks(actually an ongoing process each week with a few acres every other day). Lots of trees, ponds, buildings, fences , banks and ditches. I have a 5100M with MX7 cutter that I use on the wide open areas and when it 100 degrees outside!

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    Quote Originally Posted by Old Cajun View Post
    I just checked the price on those suckers, WOW!!!
    They are certainly proud of them for sure!

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    This little dude in expensive to own, when you consider how many mower blades it would take to pay for it. At $750.00 up front cost, and the cost of what three (average mower uses) blades averaging $50.00 per set you would sharpen, you would get 15 sets of blades to average the cost of the Magna-Matic 9000 unit.

    I have a hand grinder and I sharpen the three blades on my 54" deck once a year in the fall after the mowing season. I own a JD 345 and a JDZ710A and I hate to sharpen these blades. Some times, I just buy new blades for each mower and pay the price(s). I buy Stens brand blades.
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    And I was on the fence over an $8 sharpening kit from Home Depot. lol
    It includes a grinding stone that fits a drill and a little plastic wobble piece to balance the blade.
    Was paying $6 each to have the mower shop sharpen them. So it paid for itself already.
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    I have found that a 4 inch angle grinder with a flapper style sandpaper disc gives me excellent control of the edge geometry for blade sharpening. The sanding discs allow very slight grinds or heavier metal removal if needed without throwing too much heat into the blade. I use a flat file to put a small flat on the cutting edge when I am done with the grinder. Not much money and fast results.
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