what speed sharpener rock should run

jv riddle · January 28, 2017, 06:19:17 PM

building a automatic sharpener for my 1 1/4 " bandmill, wondering if anyone knows the speed that i should run my grinding rock ?? thanks for reading or replying :laugh:

ozarkgem · January 28, 2017, 06:28:30 PM

Order some stones from one of the suppliers on the left. I get mine from Cooks, but others have them. I think they are rated at 6000 rpm but I would have to look. I don't think you want to go any faster any way. All so MSC has surface grinder wheels and they list the RPM. Search a little.

muggs · January 28, 2017, 06:35:01 PM

Maximum rpm is usually printed on the stone. Muggs

jv riddle · January 28, 2017, 06:43:09 PM

thanks guys , i was planning on using cooks blue ceramic stone but not ordered yet - just kinda figure might want to run at a lesser rpm that what rock is maxed at, to keep heat down , so was wondering what rpm motor might work best .

tacks Y · January 28, 2017, 07:01:15 PM

I think motor speed of 3600 rpm, but will check in the am for you.

bandmiller2 · January 28, 2017, 07:03:15 PM

JV, Cooks blue or ruby ceramic wheels are an excellent choice. I would turn them at 3600 rpm that just happens to be a standard motor speed. Frank C.

boscojmb · January 28, 2017, 09:23:36 PM

I just took a look at my Cooks sharpener.

The Cooks blue stone is rated for 6495 RPM and the ruby stone is rated for 4515 RPM.

The sharpener has a 1725 RPM motor with a 4" drive pulley. The driven pulley is 1.5".

If my math is correct this gives you 4565 RPM.

fishfighter · January 29, 2017, 06:25:47 AM

The radial saw I turned into a sharpener rpm is 3450. The stone I'm using is a blue 8"x1" stone that is rated at 4500 rpms. So far all is good. ;D Oh, I went thru two stone dressers to get the stone dressed out to the profile I needed. :(

ozarkgem · January 29, 2017, 06:48:17 AM

I use a diamond tipped wheel dresser. Like a screw driver but has a diamond tip. Buy them from MSC. Get a good one. Cheap imports are a waste of money.

fishfighter · January 29, 2017, 08:28:20 AM

Got one ordered. ;D

tacks Y · January 29, 2017, 08:39:47 AM

I have a Wright sharpener that runs a Fasco motor direct 3000rpm. The WM I have runs a Leeson motor direct but cannot read the rpm.

jv riddle · January 29, 2017, 09:32:28 PM

AWESOME GUYS! i think this tells me what i need to know, ive built 2 sawmills one a fully hyd version and the one im running now which is partial hyd, but this is first atempt to build an auto sharperner.. thanks again and if i can be of any help to anyone please feel free to contact me 8) :D

fishfighter · January 30, 2017, 04:57:25 AM

Quote from: jv riddle on January 29, 2017, 09:32:28 PM
AWESOME GUYS! i think this tells me what i need to know, ive built 2 sawmills one a fully hyd version and the one im running now which is partial hyd, but this is first atempt to build an auto sharperner.. thanks again and if i can be of any help to anyone please feel free to contact me 8) :D

Start a thread on your build with pictures if you can. ;D