Final Results from the Extraction Test

[Unimatic1140]

Final Results from the Extraction Test

I’ve completed the rinse/spin test on 15 machines, with the little 1941 Bendix being tested twice. Both tests on the Bendix were nearly identical. I’ve measured the dripping wet towels three times, the first time 35.6lbs, the second 35.2 lbs and the third 35.4 lbs. Since they weight of the sopping wet towels changed very little I averaged the wet weight at 35.4 lbs as it appears that the minor agitation the towels were subjected to did not cause much wear and loss of mass.

Here are my final results, which were somewhat predictable, but there were a few surprises…

 

[frigilux]

Cool! What a great chart; the only thing missing is the Wizard (I'm guessing it spins the same speed as my Frigidaire TL'er, since they both use the Franklin transmission).

I'm not surprised at the Lady Kenmore's rather poor showing. Your ramped-up Speed Queen really did well, didn't it. How excellent is it that the 1947 GE took the checkered flag? It was the Lexus of early washers, wasn't it?

Thanks for all the time you put into this project, Robert. It's better than Consumer Reports!

 

[DADoES]

Run them through the '57 Unimatic a 2nd time for 8 min total and see how much closer the result gets to the '47 GE.

 

[partscounterman]

Thank you Robert for taking the time to do this test. It was really fun to see how all the machines did. To think that one of the oldest machines is the best! WOW! I wish I could make my hettie spin at it's "rated" 1200 for like 10 minutes, instead of just the last few minutes of the annoyingly long spin cycle.

My Hettie-

Start to spin
Stop
tumble
start to spin again
slow to tumble
pause
tumble again
pause
start to spin
conk out because frustrated owner just took a softball bat to the damned thing!

Sometimes it drives me nutZ

 

[exploder321]

I am quite suprised...

This is great and far better than CU ever could do...

 

[nasadowsk]

Ok:

What's the tube diamters and approximate g's generated for each washer? It'd be interesting to see how they place, plus solid/perf tub. Remember a discussion a ways back when Maytag's sell sheets were posted? Did the perf tub make the difference they claimed?

It's odd, but the best extraction was a solid tub machine. But, isn't that GE tub a bit wide?

 

[appnut]

David, I thought you were aleady nutz b4 the Hettie arried on the scene. (((((David))))))))

 

[jonv112]

I noticed from pictures that the holes in the Harmony are spaced quite far apart from each other. In my Oasis the holes are about 1cm apart from each other.

 

[oxydolfan1]

I'm impressed by the Neptune's performance.

 

[spiralator60]

Hi Robert! Thanks for all of your careful work on the extraction test. One question, though. In the "Water Removal per Minute" column, what is the measurement being used (liters, lbs, etc.)?

 

[panthera]

Robert

This was fascinating. You have really done something neat here.
Thanks!

 

[chestermikeuk]

Results Are In!!!

Great stuff Robert

Very interesting results there, I take it the 47 GE spins at 1140 for the 9 mins??

Surprised at the Unimatic, but like Glen I reackon with an extended spin it would come out on top, The UK Hotpoint (1050 4 mins)had a marked difference to the wash after a double spin.

You have to give it to those wringers!!! and the more you double up the clothes and extra passes the more you wring out...

Thanks for the testing n results, Mike

 

[hoover1060]

I agree

fascinating Robert, I had forgotten about the '47 GE too!

 

[mayken4now]

Wow Robert!

Thanks for the information. I was wondering why the test was taking so long for two machines. I should have known that you would even build a database to demonstrate not two but 16 machines! Very good data there and thanks a million. I will print this one out for the record.

Steve

 

[tlee618]

Robert those results are so interesting. Amazing the the 47 GE did the best job. Thanks for doing and sharing the results of this with us.

 

[sudsman]

Robert

Would be interesting to run a test with the same load in 2 or 3 machines but use a warm rinse I was always told that a warm loads extracts better than a cold load. Also a warm load will take 5 to 10m mins. less in the dryer.

 

[gansky1]

I'm not surprised with the GE results - they are noticably drier when they come out of that washer!

Where's the Super-Unimatic results? With that tub diameter and the extended time, it would be an interesting comparison.

 

[jetcone]

I am amazed at the

Extraction per minute figures!
Unimatic is highest with Maytag and then Westinghouse following??
So that a longer spin time in those machines would equal a unimatic???
It must be the perforated tub design that gets them up so high on extraction rate.

Now we'll see what the Blackstone can do, the Bendix Gyromatic versus the Bendix Duomatic and the Frigidaire 1010 rapid dry!!
Robert can you email me your spreadsheet so I can use the same formulas you used??

jon

 

[Unimatic1140]

the only thing missing is the Wizard
Eugene the Wizard is in Storage and as for other machines like the Norge, Hotpoint, etc. the results will be nearly the same, falling around the Maytag or Kenmore.

Run them through the '57 Unimatic a 2nd time for 8 min total and see how much closer the result gets to the '47 GE.
Hi Glen, I will do that over my lunch hour and we will see what happens.

conk out because frustrated owner just took a softball bat to the damned thing!
David I agree. While the Harmony might remove a tiny 2/10th of a pound more water than the Unimatic, it takes the Harmony 18 minutes to do this, where the Frigidaire does it in 4 minutes. While I know these new DC motor washers use less electricity than the older AC versions, I find it hard to believe that 18 minutes of DC spinning would use less electricity than 4 minutes of AC spinning. So much for conservation.

One question, though. In the "Water Removal per Minute" column, what is the measurement being used
Darryl its lbs per minute. But it’s not really that helpful because a lot more water is removed in the first minute of spin in any washer than in its last minute. I was sort of trying to show efficiency per minute of spin, but there probably is a better formula for that.

I take it the 47 GE spins at 1140 for the 9 mins??
Hi Mike, yes revs right up to 1140rpm, it takes it about 1.5 minutes to get up to speed. The Unimatic gets up to speed in less than 30 seconds, unlike all these modern machines is does not dink around wasting time for nothing. The modern machines claim they do this for balancing and that is fine, but with modern electronic sensors the machine should be able to tell when that the load is properly balanced (as it is 85% of the time) and get right up to speed, saving time.

Where's the Super-Unimatic results?
I’ll test the Super Unimatic tonight. I will perform three tests, a rinse and a 4 minute spin, a rinse and a 8 minute spin (my towel cycle does an 8 minute spin) and just for kicks a rinse and a 30 minute spin. The tub diameter is at least a 1” larger than in the ’57 Unimatic.

Extraction per minute figures!
Jon I don't think the Extraction per minute figures tell us very much.

NOW CHECK OUT SOME NEW INFORMATION, I ADDED TWO NEW COLUMNS:

I measured a few of the wash tubs to get the diameters: