[TheForge] Re: belt life vs speed

Tue Jul 8 15:22:00 2003

I built my 2x72 grinder the belt speed is aprx.3600 fpm, a local knifemaker
told me if I slowed down the belts would last longer, I'm using norzon
belts, had the local suplier contact norton, after I couldn't get an answer
from them, Norton recomended 4000-5000fpm for grinding steel.  Chuck is
talking 6000fpm. Does anyone else have any input on this.  I used a 1hp
motor which is adequite about 90% of the time, but then I'm not a knifemaker
and don't use it very hard.
Randy Mundt
----- Original Message -----
From: "Chuck Robinson" <[email protected]>
To: <[email protected]>
Sent: Tuesday, July 08, 2003 12:10 PM
Subject: Re: [TheForge] Treadle Hammer drawing dies


> Hey Jeff,
> Check out the Beaumont grinder
> http://www.beaumontmetalworks.com/grinder.html
> I think it's the best value in grinders available.
> I would put a big motor on it up to 5 hp.
> A lot of the ceramic grinding belts available today are designed to run
> about 6000 FPM with lots of pressure to cut fast and expose new cutting
grit
> surfaces. Most belt grinders can't handle this action. So the belts appear
> to be worn out at about <30% of their design life.
> Chuck
> ----- Original Message -----
> From: "Barking Crow" <[email protected]>
> To: <[email protected]>
> Sent: Tuesday, July 08, 2003 12:45 PM
> Subject: Re: [TheForge] Treadle Hammer drawing dies
>
>
> > Hey Doug,
> >
> > Thanks for the input.  I guess it's all relative.  I'm used to working
on
> > the little Delta 1" vertical belt sander with an aluminum oxide belt.  I
> > worked on the Grizzly for hours every day at the workshop and did get a
> > chance to try a bader a few times.  It was very nice but I guess what
I'm
> > after is an entry level grinder.  I've been trying to justify the $400
> it'll
> > cost with postage and some belts for the week that I've been back from
the
> > tool workshop.  If I knew someone that had one for sale I'd try to trade
> an
> > anvil or something else for one to keep from putting out the $$.  On the
> > other hand, I do have some unchecked lotto tickets in my wallet.
> >
> > I don't expect to do much in the way of knife making, but just want to
> > upgrade for general grinding and the occasional knife.
> >
> >
> > Thanks again, Jeff
> >
> >
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