time for my CT 22 to retire

[ChuckS]

Is CT22 an EU thing? I don't see it on LVT's product pages.

 

[Cheese]

Is CT22 an EU thing? I don't see it on LVT's product pages.

It’s an older model, probably discontinued about 8 or more years ago. I purchased mine new in March 2008. Great piece of equipment, I never “upgraded” to the newer 26/36 series because mine still works well after almost 10 years.

 

[Stephen B]

My CT22 is around 15 years old and still going but is suplimented now by a CT26. I need a  DE that can be moved from the Untidy Shop to tasks within and about the house easily by someone in their mid 60s. The larger DEs can be very heavy with full bags.

 

[aloysius]

I think my Kraenzle/Festo/ol CT22 is 2000 vintage +/-.  Acquired just after the company changed its name & corporate colours from blue to green.

The "original" CT22 & 33 are merely badge-engineered versions of Kraenzle's much older Ventos 25 & 35 models,  with black rather than blue superstructure.  K had a uniquely weird "aerodynamic" systainer fitted for accessories too.  F's 11, 44 & 55 models of this series were mere shrunken & stretched versions of the 24 & 35 Kraenzle originals.  K still make vacs for Festo/ol too:  their crappy budget 20 & 30L versions of Festool's own rather pedestrian "17".  K still make their own range of water blasters & sweepers too, but to date not in Festo/ol livery as far as I'm aware.

Prior to Kraenzle's acquisition, Festo for many years badge engineered a few select versions of the then German industry standard Nilfisk/Alto/Wap industrial extractor range as their "own" SR series, as did almost all other German domestic power tool manufacturers. 

 

[Corwin]

Really depends on what you use it for. And what the price difference is. The bags become cheaper per volume unit when going bigger. However... a CT36 with a full bag will be harder to pull up some stairs (ladder!?) than a CT26.

As someone who owns both a CT22 and CT26, let me remark this;

The CT26 doesn't have a blow-port like the CT22 does. I've used that to inflate a life raft that we put in the backyard as a swimming pool for the kids.

The CT26 is much less noisy than the CT22

On the CT22 the cord (if not unrolled all the way) is in the way of opening the VAC.

The hose garage isn't detachable on the CT26, so a CT can be much lower.

Both fit under a Precisio. Now try that with a CT36 or CT48...

My CT22 is almost twelve now. Somehow I missed that the CT26 was quieter than the CT22. So, how much of a difference are we talking here?

 

[Michael Kellough]

 

[smartins]

About your concern start to watch from 9:00 minute.

...but I don't know how much loss of suction there is using this setup....

 

[smartins]

Can't measure, but I was really surprised that CT26 is quiter than my home vac- Kaercher DS5500.

My CT22 is almost twelve now. Somehow I missed that the CT26 was quieter than the CT22. So, how much of a difference are we talking here?

 

[smartins]

I wish CT26 had this feature also. But I realize that manufacturer has to change/remove some features which users needs so that this annoys users and after some time user will buy newer version of product which will have this feature again...

...
The CT26 doesn't have a blow-port like the CT22 does. I've used that to inflate a life raft that we put in the backyard as a swimming pool for the kids.
...

 

[Bohdan]

About your concern start to watch from 9:00 minute.

...but I don't know how much loss of suction there is using this setup....

Unfortunatly Peter is only measuring the static pressure on the CT with different hose combinations. There is no airflow because the hose is totally blocked.

The different readings that he gets for the different setups just tells us that there is more leakage with his homemade collector and slight leakage with the DD.

[member=11196]Peter Parfitt[/member]

 

[w802h]

For less than the price of a new Festool vacuum that will only match your current set-up with cyclone, you can buy a 1.5 HP dust collector with a 4" hose to handle a high volume of debris.  The CT's are great for what they do, but the time alone constantly emptying the machine calls for a bigger machine.

 

[Stone Message]

Unfortunatly Peter is only measuring the static pressure on the CT with different hose combinations. There is no airflow because the hose is totally blocked.

The different readings that he gets for the different setups just tells us that there is more leakage with his homemade collector and slight leakage with the DD.

There is a relationship between static pressure and CFM for specific fans/setups. As, in this case, the fan (extractor) is the same then the static pressure can be assumed to be linked to potential CFM.

Peter

 

[Coen]

Unfortunatly Peter is only measuring the static pressure on the CT with different hose combinations. There is no airflow because the hose is totally blocked.

The different readings that he gets for the different setups just tells us that there is more leakage with his homemade collector and slight leakage with the DD.

There is a relationship between static pressure and CFM for specific fans/setups. As, in this case, the fan (extractor) is the same then the static pressure can be assumed to be linked to potential CFM.

Peter

You block the hose and measure pressure? With zero air leakage... friction losses are irrelevant.

It's the same thing as measuring voltage without load; all losses become irrelevant. No current = no losses = full voltage. That's why you get all those "ghost voltages" with a high impedance measuring device (voltage stick, indicator, etc.) and not with a low impedance measuring device (the bipole voltage testers with switchable load).

 

[leakyroof]

Howard, as someone who owns a MIDI, a CT 26, a CT36 Auto, AND a CT Sys Vac, I'm THE LAST person to talk you out of buying a new vac..... [poke]
But I do agree that it might be worth waiting for the new models if they aren't 2 years away from getting here to the US....
Oh, and I used to own a CT-22 as well..... It was my first Festool Vac... [thumbs up]

 

[leakyroof]

My CT22 is around 15 years old and still going but is suplimented now by a CT26. I need a  DE that can be moved from the Untidy Shop to tasks within and about the house easily by someone in their mid 60s. The larger DEs can be very heavy with full bags.

  Buy the MIDI, it's def. more portable up and down stairs than a partially full or even empty CT 26. The MIDI is my go-to vac for job site work that won't require a larger bag that my 26 or 36 vacs have.

 

[sancho57]

Hey are we gonna see these CT 22s in the classifieds anytime soon? Last used one I bought I paid $198 for it and that was 5 years ago and it works like a charm.

 

[Gregor]

There is a relationship between static pressure and CFM for specific fans/setups. As, in this case, the fan (extractor) is the same then the static pressure can be assumed to be linked to potential CFM.

[member=41421]Peter[/member]: Having dealt with vacuums (industrial grade) in static and dynamic setups I must side with [member=8955]Coen[/member] here, measuring static pressure like you did is only good to detect leaks.

CFM is about flow (not pressure) between two pressure levels (room and DE intake) and is highly dependant on the geometry (lenght, width, form) of the airway between these two levels as that determines the way the air moves (laminar vs. turbulent) and thus the internal resistance of the airway.

Possibly, with a spring of carefully selected tension (so you get good readings) your setup could be used to measure the pressure near the DE intake, which would measure the dynamic situation (the DE sucking at the hose vs. the air coming through it) so the effect of putting different things on the other end of the hose (nothing, another hose, cyclones of certain types) could be estimated:
Should the pressure near the DE intake fall one would know that what's currently at the end of the hose poses a greater resistance to the airflow (as the DE is able to evacuate the beginning of the hose to a lower pressure level as less air is able to travel through the setup). A good cyclone should have only very little resistance, thus should result in only a small pressure drop at DE intake.

Possibly you have a Y connector (to go directly into the DE), so you could attach your test rig to one connector of it, then a normal hose (for reference, then the cyclones) at the other and redo the test? It would suffer from venturi effect (as of the geometry of the Y connector) a little, but that shouldn't be that relevant for this kind of test.

An airflow meter (basically an unpowered fan with a RPM readout, with a little electronics to multiply with the known fan characteristics and the area of it) measuring what's going into the end of the hose would give way more accurate results though...

Back on topic, I would suggest (should the vac mainly be ment for stationary use) to keep it and invest in a DD style cyclone, would be cheaper and solve the 'full bag' problem in an (relatively) inexpensive way.

 

[Stephen B]

My CT22 is around 15 years old and still going but is suplimented now by a CT26. I need a  DE that can be moved from the Untidy Shop to tasks within and about the house easily by someone in their mid 60s. The larger DEs can be very heavy with full bags.

  Buy the MIDI, it's def. more portable up and down stairs than a partially full or even empty CT 26. The MIDI is my go-to vac for job site work that won't require a larger bag that my 26 or 36 vacs have.

[size=13pt]
Yes we have a Midi too and I agree re portability. It is so portable that Ms Untidy has taken possession of it as a household Vac.  [eek]

 

[rst]

I feel for you Untidy, my wife just got a Rhumba...calls her Rosie, so I got back my vac.  Kinda of insulted...she never named my vac.

 

[leakyroof]

My CT22 is around 15 years old and still going but is suplimented now by a CT26. I need a  DE that can be moved from the Untidy Shop to tasks within and about the house easily by someone in their mid 60s. The larger DEs can be very heavy with full bags.

  Buy the MIDI, it's def. more portable up and down stairs than a partially full or even empty CT 26. The MIDI is my go-to vac for job site work that won't require a larger bag that my 26 or 36 vacs have.

[size=13pt]
Yes we have a Midi too and I agree re portability. It is so portable that Ms Untidy has taken possession of it as a household Vac.  [eek]

. Ahem, um yes, I SEE your point.... [eek] [wink]