More Airflow Tests Part II

[captainslow]

Miele C3 motor airflow

Thanks for the clarification Bill. Indeed the inner diameter is wider than the opening ends, but since all I have is a standard ruler, the opening diameter is all I have. I've done a motor-only run, with a clean bag with standard filters.

My results show that the 1200W motor can indeed achieve the 158CFM rating as advertised on this Ristenbatt webstore. How do I embed a youtube video to share it here?


http://https//www.ristenbatt.com/xc...8-Canister-Vacuum-Cleaner-Specifications.html

 

[blackheart]

Another Lux

I'm surprised by this i honestly though it's flow would be as good if not better than the marquis given it's shorter airpath. I attempted to take suction readings at the bag chamber but the cardboard bag frame leaks when suction at the main port is sealed off. I also lack a proper hose which would allow me to get a good suction reading. I did take a reading at the base hose when it was apart for service but I didn't have the hepa bags when i did that. It's amazing how much flow was lost going from that tube to the nozzle itself as well as waterlift the suction was ok from that hose nothing great though.

 

[blackheart]

RSL4

That's very odd....They did change the fan from the RSL line to the new R/S10S and up line but the old R/S10E still uses the old fan. I recall trying the "wand" test with both models and the newer style did pull the wand away. this is very interesting and I'm going to have to test that too I know the shop i worked for has a Used S3600 which i think was the equivalent of the RSL4.

More machines to come! unfortunately i've been rather slow with my restorations.

 

[rivstg1]

black heart,

we appreciate your testing and posting these results!!! keep doing them as you come across different machines!

 

[blackheart]

Freedoms

Well i tried a used 3600 and it's motor was not in the best of shape i only got 67.28 CFM from it. Then i got the idea to measure the S10E which uses the same fan and motor as the older freedoms then i did one of the newer S10 series machines with the new fan and strangely i got a lower result than last time and i couldn't figure out why but there's two factors that could have effected the S10D's flow #1 the metal rollers when brand new have additional resistance until it "breaks in" due to a seals meaning the motor could have been spinning slightly slower. #2 I was using a different Vane on the same anemometer. The weirdest part to me though is that the S10S and up line produces more flow with a fan with fewer blades. In a way it makes sense though the outer part of the fan is going to reach the highest speed and on the old ones the highest point is towards the center with the new one the peak is towards the outside of the fan. so that portion which displaces the most air is traveling the fastest on the S10S+ line.

 

[blackheart]

Symmetry S20D

I've been told they had superior flow but their hose power always seemed weaker to me, doing this though shows me that they have more flow at the base than the old versions do according to Bill's symmetry I didn't have all my tools on me or enough time to do it thoroughly but here's another

 

[blackheart]

Symmetry S20UP What happened?

Ah the ultra premium using a 2 stage motor and having an additional year of warranty over the S20P it's two steps up from the previously tested S20D
The first weird thing i noticed was that this had less hose power than the S20D. Looking at it more closed showed that this has a different hose on it one that is more supple and stretchable but it may have deeper ridges to it which would make it's interior diameter smaller. I'm not sure what went wrong at the nozzle for some reason it's loss was much more significant than the S20D, but i re-tested it once and found a similar result. I didn't have the time to do a more thorough test or to inspect it's base for the cause of the loss.

 

[blackheart]

Proteam 1500xp

Another partial test really. They also have a smaller headed 1200xp which i'd assume would be just as powerful just with a smaller cleaning path. I'd assume it's brushroll cavity to be the same size as a lux so it's airflow density could be guessed at 2.77CFM/in²

 

[blackheart]

Another!

This time a Eurekalux, ever since I've tried one of these in a local hardware chain i've wanted one. It's power is in line with other high end canisters.

 

[mike811]

Here is my AEG / Electrolux Precision BrushRoll Clean


I got 76 nozzle cfm what is the highest what I have seen for a bagless vacuum.
It has a diverter valve, so when the floorhead is in use air doesn't go through the hose.
In the US it has 12 amp motor.

 

[blackheart]

Another!

Here's a higher end Dirt devil vision. It has a Dirt sensor and even a clutch system for the brush control i'm kind of amazed that a Dirt Devil has these features. I was told the owner never changed the main filter, It's a cleanstream filter so i washed it it and replaced the pleated after filter It's in surprisingly good shape for it's age and brand. The belt area accounts for nearly 2" of the nozzle width which is much too wide IMO.

 

[blackheart]

A Kenmore

Picked this up from a thrift store to test it. It has a new hepa bag a new hepa filter and the unit was cleaned out the motor was about 5" in diameter. The results are pretty mediocre. Yes the suction is actually that weak at the nozzle granted my panels may not seal as tightly as other testers but there was a lot of air leaking around the nozzle's housing.

 

[vaclab]

Devin, Thanks For All Those Extensive Tests!

And please keep posting!



Buwahaha! Jeez, I gotta stop typing that.....

 

[blackheart]

Bill

I've recently gotten my hands on another canister in the same league at my platinum. I'm not sure when i'll get around to doing the full tests though.

 

[blackheart]

Oops!

I misread my own data! I saw 112cfm and thought that was a hose measurement but that was a body measurement oops!

 

[s2_82]

Hey devin, have you ever tested any riccar brilliance models or latest aerus upright for airflow tests? Just curious

 

[lesinutah]

Hey

I'm pretty sure riccar has been texted. I think 80 or so cfm.
The other I don't know.
Les

 

[blackheart]

Brilliance and Aerus

I did test a Simplicity Synchrony and got 88 base CFM, I got 99 from a Synergy. I thought they'd score a little better than that, but they're still excellent cleaners IMO.
I have not measured the latest Aerus. I think the most current model I measured was a Legacy (3000) which used the VM3 motor. I hate the VM3 though so I have since replaced that.

 

[s2_82]

Awesome, not too much difference then between both the synergy and synchrony then.. they do have different brushrolls but i still dont think it affects how much air they are both moving. I like all your airflow tests, hope to see more in future

 

[blackheart]

Another tub.

This was the machine I thought was as powerful as the Lux platinum I put initial readings on a post it note and mistook my body reading for a hose reading. I will say it's suction is kind of hard to measure as with some tub vacuums the gauge's needle shakes for some reason I used the max value as it's suction rating.

I was looking for a quiet canister for the daytime cleaning of an office area and I considered this and a Numatic James. I did decide on James due to my familiarity with Numatic's products. Then curiosity set in and I ordered this machine as there was a nice condition "used" machine on ebay. I'm thinking this machine is nearly new as the box had return center labels. There may be an upcoming video comparing this machine to James (with Henry acting as a stand in as James is at work)