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Buffing Wheel Options

 
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Graunke



Joined: 20 Nov 2008
Posts: 2218
Location: Buffalo, MN

PostPosted: Thu Dec 22, 2016 10:38 am    Post subject: Buffing Wheel Options Reply with quote

Locally, there is a bench top Buffing Wheel on sale. It runs at 3250 RPM, and it seems the Stew Mac only runs at 740 RPM.

I assume this is because that high speed will burn through a finish. In my search, I found this from Eastwood, that has a 1720 RPM option.

In you guys experience, is 1720 RPM still too fast?
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RandyM



Joined: 10 May 2008
Posts: 6716
Location: Austin Texas

PostPosted: Thu Dec 22, 2016 4:44 pm    Post subject: Reply with quote

My wonderful wife surprised me with the whole StewMac system. That speed is just about perfect with the 14" wheels. Any faster would be more dangerous for sure.
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Kregg



Joined: 22 Apr 2008
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Location: Atlanta

PostPosted: Thu Dec 22, 2016 6:07 pm    Post subject: Reply with quote

The Stewmac motor runs at 1725 rpm.
The way they step down the buffing wheels is similar to Drill press pulleys & belts.
Also, they mount the wheel using 2 - base mounted bearings (similar the link):
https://www.mcmaster.com/#standard-mounted-bearings/=15l2uem
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Last edited by Kregg on Thu Dec 22, 2016 6:12 pm; edited 2 times in total
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RandyM



Joined: 10 May 2008
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Location: Austin Texas

PostPosted: Thu Dec 22, 2016 6:10 pm    Post subject: Reply with quote

I also run the belt a little loose so it can slow if I apply too much pressure.
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BeeTL



Joined: 14 Sep 2008
Posts: 1914
Location: Tampa Bay, FL

PostPosted: Fri Dec 23, 2016 5:10 pm    Post subject: Reply with quote

1100 RPM is about as high as you want to go:

http://www.caswellplating.com/3-4-hp-buffing-machine-1100-rpm-machine-only.html


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dougk



Joined: 11 Dec 2007
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PostPosted: Thu Dec 29, 2016 5:47 pm    Post subject: Reply with quote

BeeTL wrote:
1100 RPM is about as high as you want to go:

http://www.caswellplating.com/3-4-hp-buffing-machine-1100-rpm-machine-only.html



Having done the home brewed setup and having this exact buffer, this is THE one.
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The Ballzz



Joined: 14 Jan 2014
Posts: 160
Location: LAS VEGAS, NV

PostPosted: Fri Dec 30, 2016 4:53 am    Post subject: Reply with quote

RPM and wheel diameter go hand in hand, to achieve a specific speed at the buffing surface. Foe example the buffing surface of a 14 inch wheel will be moving much faster than an 8 inch wheel at the same RPM. In other words, RPM and speed, while related are not the same thing. Not sure what the optimum speed is, but it should be fairly simple to figure out.
Just My $.02,
Gene
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BeeTL



Joined: 14 Sep 2008
Posts: 1914
Location: Tampa Bay, FL

PostPosted: Mon Jan 02, 2017 9:58 pm    Post subject: Reply with quote

Yup, Doug did all of the math, and it's posted here in the FAQs:

http://www.reranch.com/reranch/viewtopic.php?t=39423
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