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Best hp for buffer?

alexp1289

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Joined
Apr 26, 2014
Messages
56
Looking at getting a Baldor bench buffer but am not sure what hp would be best for steel/stainless/aluminum (will be using it to polish engine parts). Also anyone know if I can stick a wire wheel on one end and buffing wheel on the other side? It will be for my home so I don't mind swapping wheels.
 
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rusty65

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Mar 20, 2012
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Pekin,IL
I would probably get at least 3/4 horsepower because if you really lean into it you'll have a heck of a time stalling it.


Sent directly from the Snap On Kool Aid factory.
 

2oolhound

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Dec 18, 2010
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5,918
Location
BC Canada
1 hp is better, mine is 3/4 (not balder) and I can stall it easily. Pros use 2 hp and 10" wheels. Have a coarse wheel on one side and a soft wheel on the other and pick up a cheap used 3/4 for a wire wheel and a stone.
 

A_Pmech

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May 8, 2007
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8,002
Location
IL
1 HP or so would be good for small engine parts. If you need more power you can always get a bigger one.

I've never owned an actual buffer. A couple pillow blocks, surplus motor, pair of sheaves and a piece of cold rolled rod will fix up a buffer in no time if you have a way to turn and thread the ends.
 
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gregthor

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Feb 24, 2010
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267
Location
MICHIGAN
Great topic!!

several things are running through my mind:

in general the buffer is supposed to do the work and not generate too much heat. I don't think you want to push too hard. right? What kind of buffing do you guys do that you really lean into it?

I have a 1/3 hp Wissota, 3600 rpm that has worked great for buffing car trim during auto restorations. It was a bench grinder that I removed the guards. I use 6 inch buffing wheels and compound to match the wheel. It works like a charm!

As the wheels get bigger the HP must go up, but at some point as the wheels get bigger the RPM must go down. I am not sure where the "sweet spot" is.

I have a new Baldor 3/4 HP 1800 rpm I am dying to try as soon as I get some new bigger buffing wheels.
 
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alexp1289

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Joined
Apr 26, 2014
Messages
56
I want to buff throttle bodies and intake manifolds and stuff like that to a mirror finish. But I don't want to find something and buy it and then find out that it's not up to the job.
 

e30bradley

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Joined
Aug 3, 2011
Messages
2,725
Location
Don’t have a garage in Arizona USA
Generating heat is an important part of buffing aluminum.. I have done a lot of aluminum polishing and can make an old motorcycle case cover look like a mirror. Parts buff better when hot, really hot. Like wear welding gloves or you'll drop the part hot.
 

jpinca

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Joined
Sep 23, 2011
Messages
225
Location
NorCal
I've been thinking about this:

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Use any motor you have laying around, maybe even 3-phase with a VFD.
 
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