Questions You Should Know about Abrasive Flap Disc For Sale
More abrasive questions | NAXJA Forums
I think I have the 4.5" angle grinders down with the cutoff wheels, flap discs, and grinding wheels. These typically run at 12,000 RPM at have a bunch of power, typically around 1HP. But what about the polishers and finishers which typically run at , , or RPM with about the same power. What are they really used for? I suppose they'd be used for sanding discs.... But why would you use a 5" sanding disc when you can use a DA sander?
They have large "eraser wheels" by 3M and others that you can use to get rid of pin striping and double sided trim adhesive tape off. The ones at Wal Mart (made by 3M) are often meant to be used in a drill at no more than 3,450 RPM. Would you try to buy a slow speed inline die grinder for something like this as a drill alternative?
And what about wire wheels? I see they go from 1" to past 4". The 4" ones are often rated at 15,000 RPM. Do you really want to run them at max speed? Or are they better used at a slower speed such as on a RPM sander/polisher tool? I mostly want to know the right things to do things.
I have 3" surface conditioning discs rated at 20,000-25,000 RPM but they almost look like they were melting (maybe they really were) at 20,000-25,000 RPM. Plus others I've asked said speed kills. It seems like anything you put on a 3" wheel should turn no faster than 12,000 RPM regardless.
What do they use these lower RPM tools for?
I get that carbide burrs typically run at high RPM's but also hear that people turn the pressure down to 60 psi...?
Put differently, what do people use a , , or RPM disc sander? How would its use differ than that of a DA? Another speed question,
I was making setup bearings with a 1" flap disc rated at 30,000 RPM. On a 12,000 RPM angle die grinder, the flap disc never turned dark. Then I made another set on a 20,000 RPM angle die grinder and it started to turn color, a little black in spots. Does that mean I should use the 12,000 RPM angle grinder or is the discoloration acceptable? It didn't look like the abrasive was melting.
What's confusing me is why these abrasives are rated at such high speeds but yet others suggest much lower speeds.
For every Hoon that graces our planet, there are three "Attorneys" looking over his/her shoulder.
DISCLAIMER: Yes, P.T. Barnum affirmed the concept, long before I was born.
They have large "eraser wheels" by 3M and others that you can use to get rid of pin striping and double sided trim adhesive tape off. The ones at Wal Mart (made by 3M) are often meant to be used in a drill at no more than 3,450 RPM. Would you try to buy a slow speed inline die grinder for something like this as a drill alternative?
And what about wire wheels? I see they go from 1" to past 4". The 4" ones are often rated at 15,000 RPM. Do you really want to run them at max speed? Or are they better used at a slower speed such as on a RPM sander/polisher tool? I mostly want to know the right things to do things.
I have 3" surface conditioning discs rated at 20,000-25,000 RPM but they almost look like they were melting (maybe they really were) at 20,000-25,000 RPM. Plus others I've asked said speed kills. It seems like anything you put on a 3" wheel should turn no faster than 12,000 RPM regardless.
What do they use these lower RPM tools for?
I get that carbide burrs typically run at high RPM's but also hear that people turn the pressure down to 60 psi...?
Put differently, what do people use a , , or RPM disc sander? How would its use differ than that of a DA? Another speed question,
I was making setup bearings with a 1" flap disc rated at 30,000 RPM. On a 12,000 RPM angle die grinder, the flap disc never turned dark. Then I made another set on a 20,000 RPM angle die grinder and it started to turn color, a little black in spots. Does that mean I should use the 12,000 RPM angle grinder or is the discoloration acceptable? It didn't look like the abrasive was melting.
What's confusing me is why these abrasives are rated at such high speeds but yet others suggest much lower speeds.
The general rule of thumb is the larger the abrasive diameter the lower the speed. But then you have a 2" and a 3" Roloc wheel both rated at 25,000 MOSSoooooo, they won't fly apart below the rated speeds.
For every Hoon that graces our planet, there are three "Attorneys" looking over his/her shoulder.
DISCLAIMER: Yes, P.T. Barnum affirmed the concept, long before I was born.