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tubgrinder wearing out the hammers fast

Discussion in 'Lawn Mowing' started by Guthrie&Co, Feb 16, 2005.

  1. Guthrie&Co

    Guthrie&Co LawnSite Senior Member
    from nc
    Messages: 784

    we have a tubgrinder at work and most of the time it is run on the slowest speed. it wears out those hammers pretty quick. anyone know if this is normal or are we doing something wrong?
  2. Richard Martin

    Richard Martin LawnSite Fanatic
    Messages: 14,699

    Wrong forum.
  3. treedoc1

    treedoc1 LawnSite Senior Member
    Messages: 319

    Run it at the right RPM's to hammer it quickly.
    The debris must be kept as "clean" as possible.
    If you load it with a bucket, all the dirt picked up wears the teeth down quicker...just like if you ran a chain saw into the ground at the end of your cut. Dirt or rocks, the same thing...just a finer abrasive.
  4. rodfather

    rodfather LawnSite Fanatic
    Messages: 9,501

    What in the world is a tubgrinder???
  5. o-so-n-so

    o-so-n-so LawnSite Bronze Member
    from Alabama
    Messages: 1,218

    I would think that rock could be the problem. The machine is designed to take abuse and to give it. New wood, old wood and dirt should not dull those hammers but mix in rock and it could give those hammers a beating. Run at recommended speed.
  6. MJLsLawnCareNmoreLLC

    MJLsLawnCareNmoreLLC LawnSite Senior Member
    Messages: 840

    ditto :dizzy:
  7. impactlandscaping

    impactlandscaping LawnSite Silver Member
    Messages: 2,332

    Exactly what I was thinking..I have seen metal tears in a Tornado grinder from rocks as well. Clear your loading and discharge areas, or better yet, pour a large cement pad for the entire processing area, and watch for large rock in the incoming woodpiles.
  8. treedoc1

    treedoc1 LawnSite Senior Member
    Messages: 319


    We use it to reduce our waste.
    Your mulch supplier uses it to make his mulch from waste, then runs it through again after aging so you can buy it and spread it.

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