Thread Number: 36836  /  Tag: Recent Vacuum Cleaners from past 20 years
More Airflow Tests Part II
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Post# 394048   6/29/2018 at 20:00 by blackheart (North Dakota)        

The other thread is getting a little long.

I've learned that F+G bags are quite restrictive. I believe this is due to their paper filltubes, they are too easily crushed or folded which create causes a loss of flow. To test this idea I took took two measurements One where the F+G bag was outside of the zippered bag and another while it's in the zippered bag. I also got a 3rd measurement where the filltube was unintentionally crushed and the flow was very limited (55.49)

I found this unit roadside and couldn't leave it behind. It had a chipped fan and a seized brushroll. Since i've got connections with one of the local shops I fixed it for under $15.

Is it normal for these "Blender motor" units hoods' to get really warm/hot? the motor turns freely. I think the problem here is the cardboard diverter just doesn't do it's job. I barely feel any air coming from the top vent. If anyone has a good solution to this I'd like to know about it.

It's a nice budget machine it's a true shame that Eureka no longer makes them or the 1934B that replaced them.


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Post# 394332 , Reply# 1   7/4/2018 at 07:55 by Mike811 (Finland)        

mike811's profile picture
Here is my Nilfisk GM80 results.
cfm from the canister is huge 149 cfm with the HEPA bag.
Sadly the hose causes major drop to the 101 cfm
I tested the shorter/thicker Philips hose and got 117 cfm
Motor uses 1345 watts.
Motor is 2-stage and very large for a household vacuum.

This would be extremely good with the large diameter hose.


CLICK HERE TO GO TO Mike811's LINK


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Post# 394362 , Reply# 2   7/5/2018 at 00:20 by blackheart (North Dakota)        
149?

Wow maybe I should look into one of those.... that's quite impressive.

Post# 394475 , Reply# 3   7/7/2018 at 11:23 by Mike811 (Finland)        

mike811's profile picture
Sorry my late answer.
With the Nilfisk it's important to choose the right type. You can get GM80 with the GMI or GMD motor. GMI is the industrial motor. Nilfisk GM80 is still available new almost unchanged, but the new model has the small 700 watt one stage motor.
You can see my GM80 motor in the picture.

Mike


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Post# 394476 , Reply# 4   7/7/2018 at 12:00 by Mike811 (Finland)        
Vorwerk Kobold VK135

mike811's profile picture
Well this is something what I quite did not expect.

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Post# 394641 , Reply# 5   7/10/2018 at 17:57 by Mike811 (Finland)        

mike811's profile picture

Here is all of my vacuums in the airflow from the nozzle test.
Results order best to worst.





Post# 395234 , Reply# 6   7/18/2018 at 18:34 by blackheart (North Dakota)        
Dirt Devil Broomvac

I'm kind of surprised by it. It seems to be able to lift rug edges despite it's low waterlift. I just finished putting it back together today and the area I had attempted to mend cracked right back open. It doesn't impact performance but the handle is constantly pushed back.

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