Milwaukee M12 polisher speeds

[Formerjeeper]

Just got the M12 polisher which is supposed to be up to 2800 rpm on speed 1 (polish) and up to 8,000ish rpm on speed 2 (sand). I don’t know how to actually measure but speed 2 doesn’t seem noticeably faster, and in fact in speed 1 motor gets more high-pitched and “sounds” like it’s spinning faster, if that makes sense.

Anyone else with one of these that can weigh in on whether this is typical. And if speed 2 is really 2.5-3x speed 1?

Thanks

 

[techieman33]

Speed 2 is noticeably faster for me.

 

[visionguru]

I have Ingersoll Rand 12v polisher, 2200rpm vs 7600rpm. You can't visualize the rpm differences, because 2800rpm =47 rotations per second, too fast for the eye (that's how movie works), so there is no difference if it's 150 rotations per second.

The polisher speed switch is basically a clutch, controlling the speed by changing gear ratio. It's unlikely the manufacturers messed up with the gear ratio. I'd take their speed rating differences at face value.

 

[techieman33]

I have Ingersoll Rand 12v polisher, 2200rpm vs 7600rpm. You can't visualize the rpm differences, because 2800rpm =47 rotations per second, too fast for the eye (that's how movie works), so there is no difference if it's 150 rotations per second.

The polisher speed switch is basically a clutch, controlling the speed by changing gear ratio. It's unlikely the manufacturers messed up with the gear ratio. I'd take their speed rating differences at face value.

The human brain can process a lot more than the 24fps-60fps of most movies and tv shows. Most competitive computer gamers run monitors at 120fps-240fps. There's at least one monitor running at 360fps. It really smooths things out when your making lots of fast twitch movements on the screen. It's even noticeable with day to day computer work. Move your mouse real fast and you'll see several pointers on the screen at ones, the same for scrolling down a page really fast. With higher refresh rates those things go away, or are at least greatly reduced. It can get expensive though since once you experience it you hate to go back to a normal 60fps computer monitor.

 

[PelicanPines]

I use the M12 polisher weekly. My speed selector works fine. Noticeable difference.

If you really have an issue with it, take it to an authorized service center... they are all over the country.