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View Full Version : angle grinder to highspeed buffer kits?



slipchuck
09-19-2006, 09:05 AM
Hi everyone

I would like to say first, thank you to everyone who has helped me so far.

I was wondering if there is such a thing as a conversion kit to turn a angle grinder into a high speed hook and loop buffer/polisher?
I realize it wouldn't have the variable speed like a real one, but hey, if you can afford a real one, this would be close enough for me.
I would only use it for fine buffing etc.

any ideas are welcome

randy

CDJr
09-19-2006, 11:45 AM
I have one that goes on my 4 1/2" grinder. I dont remember where I got it though. Im thinkin I got it at Lowes and its hook & loop.

ZRX61
09-19-2006, 06:41 PM
Horrible Fright have variable speed 7in buffer/polishers for about $50.... I got mine on sale for $30.. used it to strip half a Ranchero & then knocked it off a bench today breaking the casing & jamming the trigger. They replaced it for free with no questions. Only returned the actual tool so now have 2 sets of pads etc that come with em :)

.....I use a DeWalt 748 for buffing & polishing tho

Phil V
09-20-2006, 08:57 AM
slipchuck, A buffer will normally be run in the 1,000 to 2,200 rpm range with usually around 1,400 rpm. An electric grinder normally runs 5,000 + rpm. At that high speed it creates more friction head which actually melts the paint cause irreparable damage to the paint (spots must be repainted). For stripping paint you want a speed of around 1,000 rpm, buffing around 1400 rpm, grinding paint/metal 5,000 + rpm.

slipchuck
09-20-2006, 11:30 AM
slipchuck, A buffer will normally be run in the 1,000 to 2,200 rpm range with usually around 1,400 rpm. An electric grinder normally runs 5,000 + rpm. At that high speed it creates more friction head which actually melts the paint cause irreparable damage to the paint (spots must be repainted). For stripping paint you want a speed of around 1,000 rpm, buffing around 1400 rpm, grinding paint/metal 5,000 + rpm.

I have a random orbit 8" buffer that runs at 5400 rpm.
would this be fast enough to "mimic" a highspeed buffer?

thanks, all this will help

randy

Roch_Greg
09-20-2006, 02:13 PM
I have a random orbit 8" buffer that runs at 5400 rpm.
would this be fast enough to "mimic" a highspeed buffer?

thanks, all this will help

randy

What's the manufacuter and model of the buffer? My Dewalt Polisher/sander (like the one len sells) runs from 1000 - 3000 rpms but I never have kicked it past 1800 and that's only on really tough jobs (this is polishing mind you). I usually use 1400 first then final finish with 1000.

What Phil pointed out was each different tool runs at a different speed (or range) because they are made to do different things. I would agree that using a grinder as a polisher is asking for trouble.

Greg

Phil V
09-20-2006, 03:09 PM
The electric motor on your random orbital buffer may be turning 5400 rpm but I can guarantee you the pad is NOT turning 5400 rpm. Just about every random orbital buffer I've seen should not be confused with a paint shop type buffer. The random oribtals are used for working with wax while the paint shop type rotary buffers are used with rubbing compounds.

I have a rotary sander that the air motor turns 10,000 rpm but the pad only turns from 0 to about 1800 rpm (because its geared for more power but less rpm).