How many hours for a set of blades?

Discussion in 'Lawn Mowing' started by jtkplc, Jun 25, 2005.

  1. jtkplc

    jtkplc LawnSite Silver Member
    Messages: 2,656

    How many hours, on average, do you get out of a set of blades before you put an entire new set on? What do you do with your old blades?
  2. HighGrass

    HighGrass LawnSite Bronze Member
    from Z5 MA
    Messages: 1,237

    I would say every 20-30 hours or so. I can sometimes get more time out of them so I just watch the cut and the qualitiy of it.
  3. Precision

    Precision LawnSite Silver Member
    Messages: 2,995

    You only get 20-30 hours out of a blade before you trash it????

    I get 4-6 hours out of a blade before I sharpen in. I have 212 hours on my Gravely and 3 sets of blades that I rotate out. One set on the mower, one set in the trailer toolbox just in case and once set awaiting sharpening at the shop. I have yet to break the halfway point on any of these blades. I am guessing at least 80 hours on one set, so far.

    20-30 you are either over grinding like crazy or something.

    I am talking commercial ZTR blades are you talking homeowner 21" blades?
  4. Precision

    Precision LawnSite Silver Member
    Messages: 2,995

    old blades go to the metal recycle pile at the dump.
  5. HighGrass

    HighGrass LawnSite Bronze Member
    from Z5 MA
    Messages: 1,237

    Sorry about that. I meant that i change out to a fresh set of blades every 20 hrs or so and sharpen the ones I just took off. And you...what the heck are you mowing that you have to sharpen them every 4 hours? :waving:
  6. impactlandscaping

    impactlandscaping LawnSite Silver Member
    Messages: 2,332

    In Florida, I would say he's mowing a good bit of sand. Ever see what sand does to the sail on a blade? Here, we sharpen around 8-10 hours of use, and replace after 4-5 sharpenings. I rotate 2 different sets on each mower, so there's always a sharp set ready to go.
  7. 6'7 330

    6'7 330 LawnSite Bronze Member
    Messages: 1,821

    Each Mower of our mowers ,gets a change of blades per machine for each day. Each day of The Mowing Week gets a fresh change out of Blades. In slow growth periods, it drops back to a fresh change out twice a Week.
    All blades are Sharpened and balanced, once a Week for the upcoming mowing week.
  8. Precision

    Precision LawnSite Silver Member
    Messages: 2,995

    quick growth bahia. And sand associated with it. Besides no one ever complains if your blades are sharp, but they sure do when they are dull.

    We usually change them daily or EOD on the Meg-mo's.
  9. Oldtimer

    Oldtimer LawnSite Bronze Member
    Messages: 1,459

    One of my customers has 10 72" Lazers and most of their mowing is not irrigated property. They get 2 or 3 days from high lift blades and 5 to 7 days from low lift blades.
  10. LawnMower

    LawnMower LawnSite Senior Member
    Messages: 653

    I run double blades all the time this time of year. They last me 2 days until I have to sharpen them. A new set of blades will last me the whole season before not using them for primary blades. . I use the worn out set of blades above a new set of blades when running doubles.

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