Grit progression on belt grinder

C

cap'njake

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Aug 15, 2016
Messages
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I got a 1x30 belt grinder and plan on using it primarily for sharpening. What would you guys suggest for grit progression for the belts strictly for sharpening

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I would suggest taking it back. It will work but you are going to eat blades up because of the belt speed.

Sharpening on a belt sander is not like sharpening on a stone. Some will argue this but I would never recommend running a progression of belts. Set the bevel with a 120 grit belt, deburr then polish the edge. This not only yields similar results to what the factory does but it also provides some of the best edge retention in everyday tasks. Personally, I use a Norton Blaze 120 followed by a fine scotch brite wheel to deburr then a surgi-sharp leather wheel to polish. I would put this edge against anything with confidence.
 
Jason B. said:
I would suggest taking it back. It will work but you are going to eat blades up because of the belt speed.

Sharpening on a belt sander is not like sharpening on a stone. Some will argue this but I would never recommend running a progression of belts. Set the bevel with a 120 grit belt, deburr then polish the edge. This not only yields similar results to what the factory does but it also provides some of the best edge retention in everyday tasks. Personally, I use a Norton Blaze 120 followed by a fine scotch brite wheel to deburr then a surgi-sharp leather wheel to polish. I would put this edge against anything with confidence.
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Seriously is there anything sharpening related you don't know? And thanks for the tip I will give that a try

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Jason B. said:
I would suggest taking it back. It will work but you are going to eat blades up because of the belt speed.

Sharpening on a belt sander is not like sharpening on a stone. Some will argue this but I would never recommend running a progression of belts. Set the bevel with a 120 grit belt, deburr then polish the edge. This not only yields similar results to what the factory does but it also provides some of the best edge retention in everyday tasks. Personally, I use a Norton Blaze 120 followed by a fine scotch brite wheel to deburr then a surgi-sharp leather wheel to polish. I would put this edge against anything with confidence.
Click to expand...
Now what if somebody was to make a 1x30 wet grinder that was adjustable speed or just able to go a lot slower kinda like if tormek made a belt grinder

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That would be cool but belt selection for a 1x42 and more so for the 2x72 is much better. Bigger belts also last longer.
 
cap'njake said:
Now what if somebody was to make a 1x30 wet grinder that was adjustable speed or just able to go a lot slower kinda like if tormek made a belt grinder

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Click to expand...

That's exactly what I have, and reversible as well.

Still, Jason's advice is sound, it doesn't really pay to do progressions on the belt unless maybe you do 120 grit and follow with a leather belt loaded with some compound.

The variable speed comes in handy when working with coarse belts doing regrinds or resizing bolsters on Western kitchen cutlery. Otherwise 120 and then finish on a wheel or by hand on a finishing stone of some sort with a microbevel gives very good results. The finer abrasives are nice for cosmetic work but not so much for sharpening.

YMMV
 
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