Author Topic: Adjusting suction  (Read 1904 times)

0 Members and 1 Guest are viewing this topic.

Offline Simon O

  • Posts: 23
Adjusting suction
« on: March 23, 2017, 06:01 PM »
Is it possible to adjust the suction strength on the IPulse Starmix ISP ARM-1635 EW or for that matter the Metabo ASR 35M ACP or Mafell S35M models? They all have dials for hose diameter, is this where suction can be adjusted?
 And is there any real difference between the 3 models?

Festool USA does not pre-approve the contents of this website nor endorse the application or use of any Festool product in any way other than in the manner described in the Festool Instruction Manual. To reduce the risk of serious injury and/or damage to your Festool product, always read, understand and follow all warnings and instructions in your Festool product's Instruction Manual. Although Festool strives for accuracy in the website material, the website may contain inaccuracies. Festool makes no representations about the accuracy, reliability, completeness or timeliness of the material on this website or about the results to be obtained from using the website. Festool and its affiliates cannot be responsible for improper postings or your reliance on the website's material. Your use of any material contained on this website is entirely at your own risk. The content contained on this site is provided for informational purposes only and does not constitute professional advice.


Offline Simon O

  • Posts: 23
Re: Adjusting suction
« Reply #1 on: March 23, 2017, 06:18 PM »
This is in the service manual for the Mafell -
"In mode >AR< and >IR, the following setting is made, depending on the hose diameter:
   
Hose inside diameter Switch position

Ø 49 mm                 70m3/h
Ø 35 mm                 70m3/h
Ø 27 mm                 40m3/h
Ø 21 mm                 20m3/h

For options Ø 27 mm and Ø 21 mm, the speed is reduced.
 The dust extractor S 35 M is equipped with an electric suction force regulator. The turning knob 2 can be used to adapt the suction power to the material to be vacuumed"

So I guess that answers my question, but why a hose diameter dial rather than a dedicated suction setting? And why, as far as I can see no mention of this in the Metabo or Starmix models. The technical support people at Metabo UK even informed me, that there isn't a way suction can be reduced on the ASR 35M ACP? Despite it having a similar dial, albeit different diameters (19mm, 27mm, 35mm)??
Can anyone make this clear?


Offline Simon O

  • Posts: 23
Re: Adjusting suction
« Reply #2 on: March 23, 2017, 06:25 PM »
The Metabo manual has this -

"7.5 Rotary switch for setting the suction hose diameter (only ASR 35 M ACP, ASR 35 H ACP)
Adjust the rotary switch (5) to the hose diameter of the suction hose fitted.
The volume flow is being monitored if the switch (2) is in the "AR" or "IR" position.
If the volume flow falls below a set value, the filter cassettes (17) are automatically vibrated (without any reduction in suction power). If the value still remains too low, the volume flow control display lights up (in switch position "AR" an acoustic signal is also sounded) to indicate that the container must be emptied, or that the fleece filter bag (7) or the PE disposal bag (6) must be replaced.Ø 35 mm => 70 m3/h Ø 27 mm => 40 m3/h Ø 19 mm => 20 m3/h
Note: Note: If the suction hose diameter is 19 mm or less, and if the flow conditions in the suction hose are unfavourable, the volume flow control display (3) may occasionally light up and the acoustic signal may sound, even though the fleece filter bag does not yet need to be emptied. In this case, lay out the hose straight and clean it."

Note: If you need to turn the rotary switch (5) to a lower value because of a machine generating dust (e.g. small diameter of suction canal in the machine generating dust, compared to large suction hose diameter), there is no guarantee that dust will be conveyed adequately in the suction hose. The suction hose must be removed from the machine generating dust after every operating sequence, so it can be vacuumed clear."

No mention here of suction control?


Offline Simon O

  • Posts: 23
Re: Adjusting suction
« Reply #3 on: March 27, 2017, 02:55 PM »
Anyone? - Anyone actually got any of these dust extractors - Starmix impulse M class, Mafell S 35 M, Metabo ASR 35 M ACP? - and could possibly shed some light on this??

Offline leakyroof

  • Posts: 1868
Re: Adjusting suction
« Reply #4 on: March 27, 2017, 04:52 PM »
 Apparently, Nope.....- Would a Fein or Bosch hose with the adjustable suction valve built-into the end of the hose be of help?  I believe several diameters are offered by both, and the flexible tool ends seem to pair with most small tool dust ports pretty well just like a Festool 27mm hose does.
Not as many Sanders as PA Floor guy.....

Offline Simon O

  • Posts: 23
Re: Adjusting suction
« Reply #5 on: March 28, 2017, 08:52 AM »
That would be one solution Leaky. However -
What I'm trying to work out specifically is whether the hose diameter dial on the Metabo ASR 35 M ACP sold here in UK, doubles as a suction control i.e. if I was using a 27mm hose for sanding - I could dial up suction to 35mm or down to 19mm?

My assumption is - as both the Mafell and the Metabo are essentially rebadged Starmix extractors with twin filters and ipulse self cleaning - that the Metabo hose diameter dial Does act as a suction control, despite what the tech people at Metabo UK told me.

The other question I'm asking re any real difference between these particular 3 models, is simply down to cost (if there is no appreciable difference) - roughly speaking here in the UK I can pick up the Metabo model for £450, the Starmix for £600 and the Mafell for £670.


Offline Alex

  • Posts: 5339
Re: Adjusting suction
« Reply #6 on: March 30, 2017, 04:35 AM »
What I'm trying to work out specifically is whether the hose diameter dial on the Metabo ASR 35 M ACP sold here in UK, doubles as a suction control i.e. if I was using a 27mm hose for sanding - I could dial up suction to 35mm or down to 19mm?

No sorry, that dial does not work as a suction control. You get the same maximum suction from the motor in both modes, it's just that the alarm is triggered by a different value due to the different hose diameters.

The other question I'm asking re any real difference between these particular 3 models, is simply down to cost (if there is no appreciable difference) - roughly speaking here in the UK I can pick up the Metabo model for £450, the Starmix for £600 and the Mafell for £670.

I didn't make a real study out of comparing these 3 but they look like they're the same. Get the specs for each of them and see if they match, and of so, save you some money with the Metabo.

Offline Simon O

  • Posts: 23
Re: Adjusting suction
« Reply #7 on: March 30, 2017, 05:41 AM »
Thanks for that Alex. Can you clear up the same issue re the Mafell S 35 M (supposedly the same essential design as the Metabo and the Starmix)? In the manual for the S 35 M it says -

"In mode >AR< and >IR, the following setting is made, depending on the hose diameter:

Hose inside diameter  Switch position

              Ø 49 mm                        70m3/h

              Ø 35 mm                        70m3/h

              Ø 27 mm                        40m3/h

              Ø 21 mm                        20m3/h

For options Ø 27 mm and Ø 21 mm, the speed is reduced.

The dust extractor S 35 M is equipped with an electric suction force regulator. The turning knob 2 can be used to adapt the suction power to the material to be vacuumed."

My confusion started with initially being told by the Mafell distributor in UK that the dial DID control suction, and I was directed to look at the manual, which with the words "equipped with an electric suction regulator" and my understanding that the 3 models of extractor are essentially the same in design - strongly suggested that the Metabo diameter dial also controlled suction....... and now finally? being told by both Metabo tech support and you that the hose diameter dial on the Metabo model does NOT control suction. So still confused really [unsure]

I finally got around to contacting Mafell and Metabo Headquarters directly - should have really started at that point, would have saved me a lot of doing and froing. [eek] Hopefully the answer will be forthcoming.
« Last Edit: March 30, 2017, 09:21 AM by Simon O »

Offline Simon O

  • Posts: 23
Re: Adjusting suction
« Reply #8 on: March 30, 2017, 06:36 AM »
Ok definitive answer from Mafell -

"Mafell S35m
NM
Nathan McEwen <nathan@nmauk.com>




  Reply|
Today, 09:36
You
Hi Simon
 
Thank you for your enquiry on the S35m extractor.
 
This machine is fitted with a variable suction rate, so the simple answer is yes you can increase or decrease the airflow to suit your requirements. In practice you may find certain tools, such as a sander for instance, if you increase the airflow by too much all you succeed in doing is vacuuming the sander to the work surface and this then becomes detrimental.
 
If you have any further questions please just ask.
 
Kind regards
 
Nathan"

Just waiting on Metabo.... [wink]

Offline Alex

  • Posts: 5339
Re: Adjusting suction
« Reply #9 on: March 30, 2017, 08:35 AM »
Glad to see you got that all sorted out and shared the result with us, makes us all the wiser. Good luck on your purchase.

Offline Simon O

  • Posts: 23
Re: Adjusting suction
« Reply #10 on: April 04, 2017, 03:44 PM »
Thanks Alex, nice to spread some wisdom, particularly in an area rife with misinformation and concerned with health. [smile]