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Thread: Grinder

  1. 01-16-2012, 11:21 AM #1
    baldy
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    Default Grinder

    Today I acquired an old industrial fan. The motor says it's 175W and 1400 RPM.
    It has 3 speed settings so I'm not sure when it runs at 1400 RPM.
    But my point is, I want to make a basic grinder, probably like the one Charlie started out with. do you guys think this motor sounds like a good candidate.
    The only other thing that concerns me is that when you turn the motor on it doesnt start turning on its own, it just needs a very light push with my finger and its off and running. Does this sound like the motor is faulty enough to worry about?
    Sorry boys, I have VERY little electrical knowledge.
    Thanks for any thoughts
    Grant
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  2. 01-16-2012, 01:39 PM #2
    Tsunami
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    Not sure it has enough HP(horse power. Sure it spins at 1400 but can it maintain that under load without slowing?
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  4. 01-16-2012, 06:29 PM #3
    Bruno
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    Default

    175W is only 0.23hp.
    That is far too light for any grinding. The motor will slow down under load and burn out. Literally
    1 hp is the minimum for real metal removal.
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  6. 01-16-2012, 10:15 PM #4
    baldy
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    Thanks boys. You know, I knew that, but in my excitement the numbers just left my brain
    Grant
    "I aint like that no more...my wife, she cured me of drinking and wickedness"
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