Grinder question

Hengelo_77

Hengelo_77

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Joined
Mar 2, 2006
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How much time does it take you guys to grind a blade on a beltgrinder?

I have a 2" by 40" machine, and it takes forever to grind the bevels just with gritt 40.
What would be normal?
 
About 20 minutes for a 50 Grit on a 5 inch blade on the 2 X 72 Wilton using an 8 inch serrated wheel.
 
Probably 20 minutes per side to get the bevels established with a Blaze 60 grit and then progress them to roughly 400.

--nathan
 
If I'm doing my 2nd Amendment knife, I can go from square flat bar stock and have a knife ready to heat treat in about 30min. that includes all the profiling and edge bevels. I use 50-60 grit blaze belts and then hit the edge bevels with a 120 grit belt. then its to the heat treat. but ya the edge bevels don't take to long.
 
3 minutes. Done. 2 x 72 grinder on super fast speed.
 
DanGraves said:
3 minutes. Done. 2 x 72 grinder on super fast speed.
Click to expand...

Man Dan your the man. What kind of sfpm are you running. My grinder just eats steel at 10000 sfpm but I get frightend as a broken belt could remove my face at thoes speeds.
 
DanGraves said:
3 minutes. Done. 2 x 72 grinder on super fast speed.
Click to expand...

Man Dan your the man. What kind of sfpm are you running. My grinder just eats steel at 10000 sfpm but I get frightend as a broken belt could remove my face at thoes speeds.
 
OK, thnx and how many knives do you guys grind with a belt before the belt is considered worn out?
 
good question. it takes me about 1/2 hr on 2x72 Grizzly w/ most work done on 60 grit and i usually retire a belt (to handle making duties) after 5-7 knives. For a flat grind i sometimes just use a 12" disc sander w/ 60 grit disc for the heavy work.
 
Dan,
I have seen you in action. :cool: Did you ever get that loud noise fixed that was coming from your grinder? LOL! :eek:
Take care buddy,
Bryan
 
Hello:

I can do a 32" sword blade in about 20 minutes from a forging, including cleaning up he fuller with mu flex shaft machine....

running a 5 hp, 14" wheel at 7200 sfm...

I can do a 5" sgain dubh in 5 minutes...or so

NVHammerhead
 
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