How fast does a Frigidaire Unimatic spin???

[tuthill]

OK, as we all know, the efficency at which a washing machine extracts water from clothes is a function of both the rpms AND the size of the tub. That's why certain twin tub washers have extractors that spin up to 2000 rpms, but extract less water than many conventional automatics.

Anyways it got me thinking just how much force a Unimatic uses to extract water.

Here's what we know, the diamter of the tub is roughly .5 meters. And of course it spins at 1140 rpms. Here's what I came up with: the Centripetal Acceleration is 7125 METERS PER SECOND SQUARED! WOW To put that in more accesible terms, that is 726 TIMES THE FORCE OF GRAVITY you are experiencing right now. Brings a whole new meaning to Rapidry1140!

So here's my challenge to you: please double check my math!

And, go into your laundry room and measure the diamter of the tub (centimeters, no god forsaken standard units please) and post it along with the spin speed of the washer and we can see how other machines will compare to the mighty Unimatic!

 

[pulsator]

Oh dear....

Well, I thought it might be fun to throw my centrifuge into the mix.... I just know I'm gonna get slapped for this!

Centrifuge:
radius: 122.5 mm
RPM: 3,100
G-Force: 1318.49

I got some different results for the Unimatic Jed...
My Unimatic:
radius: 285 mm
RPM: 1,140
G-Force: 414.83

BD Whirlpool:
radius: 270 mm
RPM: 525
G-Force: 83.35

Fisher Paykel:
radius: 260 mm
RPM: 1,010 RPM
G-Force: 297.05

Bosch frontloader:
radius: 235 mm
RPM: 1,200
G-Force: 379.01

Now, I did cheat and use an online calculator, it could be totally wrong!

http://www.msu.edu/~venkata1/gforce.htm

 

[soapnsuds]

Well Mr. Tut

Since you INSIST on no 'god forsaken standard units!', add to that, we are in America, land of GF INCHES..I can't compute .5 whatchamahoozies into REAL measurements. How would you like us to measure the tub? LOL

Just inside circumference? Or would you like the depth as well? Seems to me that would be important, since I'm sure the weight of the load must have something to do with extraction?

This also brings up something that I have been pondering... My ASKO has several different spin "speeds" so to speak from no spin to 1600 rpm's. YET, when you select say, 800 rpms, the machine does not spin at 800 rpm's. Instead, it ramps up to a very high speed, but only spins that way for about 1 minute and then stops. The clothes are very damp and feel as if they were spun at a slow speed. SO my question is this:
If a machine spins at 800 rpms for say, 5 mins, and the ASKO spins at 1000 for 1 minute. Do they achieve the same results?

In the meantime, I'll get my tape measure ready.

 

[tuthill]

I dunno Jamie

I'm pretty sure that Unimatic figure is right

Soapnsuds, I don't wanna sound like a jerk, but standard units are a joke. They are dying fast, and quite frankly, I can't stand them. To measure your tub just use a standard tape measure, most of them have centimeters. No need to measure the depth of the tub.

Yep you're right, the longer you spin em the more water comes out.

 

[tuthill]

Maytag

Can't forget the trusty 806!

G-Force: 235.7

 

[pulsator]

Until when though Jed? Is there a point at which no more water will come out? After all, there isn't an unlimited amount of water in them! I wonder how long it would take to spin a load of laundry completely dry in a Unimatic and then toss it in the dryer for a quick dewrinkle cycle of course! lol

Also, according to my calculator, you did it wrong, but then again, it may have been the numbers you used! lol

 

[tuthill]

I haven't the faintest idea how long it would take to dry the clothes in a Unimatic. But I love how only Frigidaire could get away with putting "DRY" on the timer for the final spin rather than "Damp dry" LOL

 

[funguy10]

From what I know, it spins at 1140 RPM hence our webmaster's user name Unimatic1140.

 

[gyrafoam]

I use my WO-65-2 all the time as well as my '64 Highlander, and WCI-63. I used to use my old (standard tub) solid-tub SQ a lot also. While there is certainly no contest between the Unimatic and everybody else, it is funny how noticibly more damp the laundry comes out of everything but that Unimatic. The clothes come out of the old 'Kenmo feeling absolutely wet!

 

[gansky1]

Jed, figure the Maytag again, I can't imagine it being nearly three times better than the WP/KM. The standard-tub WP spins at 525 rpm, the Maytag at 618. The large capacity WP machines spin at 505 but the diameter of the basket was enlarged so the results are virtually the same.

The volume of the load does make a difference in the end results - full loads will always feel drier than a few items. The salesman that delivered the Wascomat to one of my accounts a number of years ago mentioned that and performance all around would be improved by washing full-to-capacity loads. Perhaps it has to do with the outward forces on the spinning load?

 

[mickeyd]

Hello magical gray ghost agitator photographer.

Was always impressed at how dry the clothes came out of the Easy Spin, but never knew the rpm's till David Partscounterman Christmas Santa-ed me a manual which reveals the Easy's speed to be a very fast 900. The directions are to spin for a modest and and shocking 2-3 minutes (only!) after spray or flush rinsing is completed, or until no water is running from the drain faucet. I had always been spinning for a much lomger period than that, say 5 minutes.

Have found that if I let a towel load spin a while, maybe 8,9 minutes or more, the towels are DRY a la Unimatic.

So my experience confirms what you're saying: time is a factor as well as speed.

Happy Satiddy Warshday Jethro and Friends:+>

 

[tuthill]

WHOA Jamie slapped some sense into me

His figure for the Unimatic is right.

The maytag is 118 G. still better than a Whirly

 

[pulsator]

I can be a real BITCH!

Geeze I didn't think I was the violent type... lol, at least I'm not cruel, I didn't ban you from the laundryroom for a week! That happened to me a couple times throughout my childhood, mainly by my uncle, however, my aunt used to always sneak me back in because she knew how much I liked to watch her roaring Norge!!!