How much power do i need in a buffer?
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  1. #1
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    Default How much power do i need in a buffer?

    I am looking at Baldor buffers. Currently i have a crappy $60 3/4HP buffer with 5/8" arbors. The maximum power that this cheap buffer delivers is fine for my needs, however i don't like how loud it is. Seems very unbalanced at high rpm. I am looking at baldor buffers but can't decide on how much power I need, since I think my current cheap xtremepower buffer is not a fair representation of 3/4HP buffer. My main goal is to be able to use 8" wheels and the buffer to be quiet. I live in a town-house and am running it in my garage. I want to be able to run the buffer and not bother the neighbours. Also prefer single phase 120V AC hook up. What are my options? I see Baldor 111 1/3-Horsepower 1 Phase Heavy Duty Buffer on amazon for $400 also was considering 3/4hp dual speed for around $700. What are practical differences between 1/4HP, 1/3HP and 3/4HP in terms of noise, torque, usage?

    Thanks ahead

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    Quote Originally Posted by pcm81 View Post
    I am looking at Baldor buffers. Currently i have a crappy $60 3/4HP buffer with 5/8" arbors. The maximum power that this cheap buffer delivers is fine for my needs, however i don't like how loud it is. Seems very unbalanced at high rpm. I am looking at baldor buffers but can't decide on how much power I need, since I think my current cheap xtremepower buffer is not a fair representation of 3/4HP buffer. My main goal is to be able to use 8" wheels and the buffer to be quiet. I live in a town-house and am running it in my garage. I want to be able to run the buffer and not bother the neighbours. Also prefer single phase 120V AC hook up. What are my options? I see Baldor 111 1/3-Horsepower 1 Phase Heavy Duty Buffer on amazon for $400 also was considering 3/4hp dual speed for around $700. What are practical differences between 1/4HP, 1/3HP and 3/4HP in terms of noise, torque, usage?

    Thanks ahead
    without knowing what you are buffing any answer is just bloviating. That said I have 3HP 1725 RPM and 12" buffs and it works fine for motorcycle engine side covers and various other large parts.

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    Quote Originally Posted by moonlight machine View Post
    without knowing what you are buffing any answer is just bloviating. That said I have 3HP 1725 RPM and 12" buffs and it works fine for motorcycle engine side covers and various other large parts.
    I am interested in using 6 and 8 inch buffing wheels and i am buffing steel parts varying in size from couple inches to a foot ish. I live in Florida and by polishing my hand tools I help them stay rust-free. Even something like zerust works better on polished surface.

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    Another option is a v-belt driven buffing head. These tend to be quiet and usually provide better access. Also let you easily get the speeds you want by changing pulleys (or using a 3phase motor and a VFD). And if you're not happy with whatever AC motor you have on hand, pretty cheap to replace it with a larger one. A true 3/4hp motor (not necessarily what you have, if it's a Chinese rated-at-stall model) should be plenty -- even 1/2hp probably fine for cleaning up most tools.

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    Quote Originally Posted by pcm81 View Post
    I am interested in using 6 and 8 inch buffing wheels and i am buffing steel parts varying in size from couple inches to a foot ish. I live in Florida and by polishing my hand tools I help them stay rust-free. Even something like zerust works better on polished surface.
    You need at least 3/4 hp as I said in your other thread. 1/3 hp Baldor buffer is more for jewlery work and you will not be happy with it. I know the 3/4 hp Baldors are a lot of $ but there worth saveing for.

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    Quote Originally Posted by PeteM View Post
    Another option is a v-belt driven buffing head. These tend to be quiet and usually provide better access. Also let you easily get the speeds you want by changing pulleys (or using a 3phase motor and a VFD). And if you're not happy with whatever AC motor you have on hand, pretty cheap to replace it with a larger one. A true 3/4hp motor (not necessarily what you have, if it's a Chinese rated-at-stall model) should be plenty -- even 1/2hp probably fine for cleaning up most tools.
    I have only seen junk import heads in the last years. The old made in USA one I have seen are not much better.

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    [QUOTE=pcm81;3094609How much power do i need in a buffer?
    [/QUOTE]

    Only.........ONLY enough to get the job done, but not enough to take yer arm or yer face clean off!

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    Thanks all for insightful replies. I guess i'll deal with my current buffer for now and save up for 3/4HP Baldor.

    Yesterday I saw Eastwood selling 1HP buffer for about $300. Does anyone have experience with those buffers? In a demo video i saw the buffer stand "walking" away from the guy doing the demo. Makes me worried about vibrations on eastwood model vs baldor. Also 1hp eastwood is 3/4" arbor not 5/8th as my current wheels are.

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    Buffing takes a lot of power and depends on the buffing wheel size and speed.
    1/2 HP for 6"
    2-5 HP for 12"
    5-7 HP for 14"

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    Have you tried running your machine without the buffs? Is it still noisy? It may be the noise is from poorly centered or unbalanced buffs.

    I have a 1/3hp baldor and 3/4 hp griz buffers. The 1/3hp is puny, for jewelry or occasional use as stated above. Bought the griz used ($40), it sounded like a hurricane. when I removed the buffs found they had 1" holes, on the 5/8" arbors. Made some bushings and all is well. While I was at it I rebushed and trued up the flanges. Interesting to find the 5/8" shaft was actually .605, made my bushings accodingly. Even cheap electric motors can run quietly...


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