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Blade tip speed on Exmark

Discussion in 'Mechanic and Repair' started by foxviewlanwns, Jun 29, 2008.

  1. foxviewlanwns

    foxviewlanwns LawnSite Member
    Posts: 7

    I have a 23hp Kohler on my 60 inch Lazer Z. Does anyone know what the blade tip speed is on this mower? It seems like the quality of the cut could be better.

    Also, how could I increase my blade tip speed?

  2. zilla24

    zilla24 LawnSite Member
    Posts: 17

    I think on these units it is 18,500 fps.
  3. jkason

    jkason LawnSite Senior Member
    Posts: 548

    Putting a smaller pulley on the spindle will cause a higher blade tip speed.

    NOT RECCOMENDED. DANGEROUS. More RPMs = more wear & tear, more vibration, cracked decks, and missing fingers and toes.
  4. americanlawn

    americanlawn LawnSite Fanatic
    from midwest
    Posts: 5,859

    Using sharp blades is the key. Not sure what angle is best, but I've gotten different opinions. IMO the smaller the angle of the cutting edge is best, but I'm not certain. Prob is, the smaller the angle of the cutting edge means blades will dull more quickly.
  5. khouse

    khouse LawnSite Bronze Member
    Posts: 1,465

    I think the regulated blade tip speed is 19,200 fps The faster you spin them the more HP you need.

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