Cincinatti #2 Grinder Workhead Information

redbug2 · Jul 16, 2008

My Cincinnati #2 Grinder came with a workhead. Recently I just purchased another workhead and the 5c and Cat inserts were included.

It would be nice to motorize one of the workheads and I was wondering what the optimal RPM should be?

It would also be nice if I had a 440 volt motor, then I could just plug it into the existing power switch on the machine.

Arnie3 · Jul 17, 2008

I will check at work tomorrow and see what rpm ours runs. Will let you know.

Damien W · Jul 18, 2008

redbug2 said:
My Cincinnati #2 Grinder came with a workhead. Recently I just purchased another workhead and the 5c and Cat inserts were included.

It would be nice to motorize one of the workheads and I was wondering what the optimal RPM should be?

It would also be nice if I had a 440 volt motor, then I could just plug it into the existing power switch on the machine.

Hey redbug did you read my earlier thread on this machine? Can you post a picture or two of whatever workheads you have?

donie · Jul 18, 2008

I have the factory motor set up. Uses a large V pulley on the head.
This is what was used at a shop I worked at, and is a little smoother in operation. A 1150 rpm motor using a flat belt driving on the flat of the workhead nose. It runs at around 250 rpm. I made a pulley that slips over that for slower speeds, but seldom use it.
http://s170.photobucket.com/albums/u265/donsmonarch10ee/?action=view&current=cuttergrinder1.jpg

yoyo · Jul 18, 2008

At my Hembrug U2 (copied from the cincinnatti #2) there is a driven head exactly like Donie's that runs at a fixed 250 rpm (motor runs at 750 rpm)
If you want to set up a range it might be usefull to know that I also have a more stable geared motorhead that can switch between 37,5 - 60 - 90 - 150 - 236 - 375 rpm
For the best results you have to put your piece between fixed centers with the dogdriver rotating around this fixed center. (you need a rather big roller bearing that fits around the center )
I cannot see on the pic if Donie's head has this option.

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Cincinatti #2 Grinder Workhead Information

redbug2

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Arnie3

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donie

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