Grinder can't keep up as a buffer?

[AmericanMechanic]

Hello,

I have an old grinder which I restored a while back and I believe is a Baldor that was sold as a Rockwell 50 years ago (the actual name plate is gone).

It's a 6", I believe 1/3 HP. It's strong when grinding, but I put a stitched buffer pad on it and anything but the very lightest touch brings it quickly to a halt.

I realize buffing takes a lot of torque but wondering if other folks grinders struggle when used as buffer, or if my motor needs work (brushes, etc.).

Thanks

 

[torqueman2002]

You're right, buffing requires more power/torque than grinding.

I don't think yours will have brushes. I expect it is an induction motor with a rotor and not an armature.

I have a 2-speed Baldor buffer made for and sold by TP Tools.

Baldor Buffer
8453 - 33TS

HZ: 60 WT: 67.000
HP: .75/.5
VOLTS: 115
AMPS: 7.8/7.4
RPM: 3600/1800

 

[1950mercury]

Only thing you can do is try a smaller buffing wheel

 

[lazer50]

I have a 1hp grinder 6 inch grinding wheel one side buffer opposite. It does what yours does also very little pressure bogs it down. But it grinds fine.

 

[Know Wosad]

It takes a lot of *** to buff. Mine is a 1 1/2 @ 3450 spinning 10" buffs. I consider it minimal. I wouldn't go after a car bumper or motorcycle exhaust sized piece on it.
My buddy runs a 5 HP with about a 15-16" buffs 2 1/2" wide at his chrome shop.Scary machine if it grabs the work piece !

 

[kctyphoon]

If u dont wanna spend alot of money, that black harbor freight buffer is pretty damn good. And they sell Meguairs products there as well.. I have a porter cable DA polisher, but the HF is more aggressive and a good option for the occasional user.

http://m.harborfreight.com/power-tools/polishers/7-in-10-amp-variable-speed-polisher-60626.html

Like $32 after coupon..

 

[AmericanMechanic]

Thanks guys. I'm trying to polish a vise handle. I may try some real fine sandpaper to get close and leave only the real polishing with a loose cottom pad for the grinder to address.

 

[kctyphoon]

Steel wool might be an option for you, and maybe some polishing compound by hand after.. I'm no expert but might be worth a shot.