CFM vs. Static Pressure? For My Dust Collector or Extractor Which is More Important? EthAnswers

[@NajmanAlpha]

Good video. I appreciated the explanation of CFM to HP and SP to Torque. That makes sense. I would have liked to have seen the same static pressure test at each CFM test...see how that dropped in relation to the CFM for each type of motor.

[@StockroomSupply]

Great suggestion! I will do this in a future video Thanks

[@mathiarun90]

Thanks for your awesome explanation!!! Can you make video on S.pressure vs CFM

[@chrishouse6924]

Interesting, all the figures but surely the best test is seeing each unit pick up wood shavings, chippings and then saw dust.

[@StockroomSupply]

Definitely! You may enjoy this video then - kzbin.info/www/bejne/qXjYq6qteshnpLs

[@nathanquinlan2719]

Almost perfect, seeing the 1/2 motor performance on Record Power would have been the cherry on top. I was already sold on the RP when my current shopvac fails but now there is the 3 motor version to consider.

[@jakegevorgian]

Last week I purchased the 55L CamVac. It's a well made dust extractor --- and I love everything that's made in England. However, I have some questions (and I don't know how to ask them.) it's got to do with the air flow. So, the new CamVac 55L I got, will be working mainly for dust (fine sandpaper dust) off my lathe. I find it important to note, that the dust direction will be towards the 4-5 o'clock and sometimes around 2 o'clock. The dust "hood" I am using has a conical shape, which measures about 11" in diameter and hooks to the 4" hose. When the direction of the dust is at the 4 o'clock, the CamVac is able to capture most (if not all) dust, however, when the direction of the dust changes to 2 o'clock, then CamVac does nothing (or does very little.) I wonder, if I create a "ring" opening, instead of the conical opening, will I see a an improved dust extraction with the CamVac, or will I exhaust the CamVac?

[@spiritseedpinecones6529]

Best video I have seen so far about this, thank you so much

[@snowinokinawa]

This was extremely informative thank you. I clearly understood how going from a larger 4” outlet to a smaller 2.5” hose affects the CFM. But may I ask what effect going from smaller to larger would be please? For example in my shop I’m using a powerful (140” Static Pressure) Central Vacuum which has a 2” outlet… and I’m going from the 2” outlet to 2.5” ducting around the shop and then back down to 2” flex hoses. I wonder if this would affect the CFM like it did in your demonstration? Thanks!

[@marks4925]

I would like to see the results of the 55L 2.7 hp CanVac added into the comparison with the 90L 4hp CanVac & the Rikon Dust collector.

[@TheAManG]

May I ask for the methodology of the static pressure measuring device you used, for our research paper? Thank you 3:55

[@StockroomSupply]

That’s the least expensive static pressure gauge I could find on Amazon screwed into a piece of plywood 👍👍

[@SMee67]

Well that was a pretty interesting and thorough comparison.👌🏽 Thanks for the break down on that too, I learnt something new here. Cheers, mate, really appreciate your efforts. 👍🏽

[@StockroomSupply]

Thanks Bill! Always thrilled when folks learn something!!

[@yuanqu6473]

Hold up, how is the dust collector better at 4" hose? Your result showed that with the ductwork, the dust extractor has higher CFM. Wouldn't that mean at least for Camvac it has all the dust collectors beat? Even with a 1000 cmf dust collector after all that ductwork you would get around 500 cfm at the end anyway.

[@christianpetersen1782]

Interesting video indeed, thank you very much. I have a very small workshop. I use mainly cordless hand tools; circular saw, router, sander etc. RP also do a single motor unit using the same motor. Can one assume that the single motor version would produce about 1/3 rd of the 3 mottor version? Many thanks.

[@mrgunn2726]

Where do I get one of these CanVac doo-dads south of the border in the USofA?

[@mykidsdad9]

Great explanation, seems my small shop may need the extractor more than the big Rikon. Using big shop vac now but limited to 2.5 in. hose. Dewalt Planer question below ?

[@StockroomSupply]

For most small shops a dust extractor like the Camvac is the best option! Regarding the Dewalt planer…both dust collectors would do a fine job. Though the Record would be better, especially on a long length of hose, due to the higher CFM and static pressure rating. Thanks for watching!!

[@Quest2chill]

could you tell me the actual cfm of the wall mounted camvac please; the specifications are low at 229cfm (108 l/s) - my router table dust collection requires 350cfm

[@christopherungaro8454]

Which is better for sanding dust a dc or an extractor ? Also which is better for chips (planer, table saw etc.) a dc or an extractor?

[@mathiarun90]

Thanks for your awesome explanation!!! Can you make video on S.pressure vs CFM

[@hassanal-mosawi4235]

Thanks Ethan for sharing that!

[@StockroomSupply]

Thanks for watching!

[@Nayuk2010]

so I just have to ask then what's the point of a dust collector then? Camvac has them beat in all conditions and there are priced similarly. I always thought dust collectors are high CFM and low pressure and dust extractors are low CFM and high pressure, but here it seems camvac got high CFM and high prssure.

[@lausts]

What happened to the "fan curve" you promised to do a video about?

[@StockroomSupply]

I made one, misplaced the paper and then broke my anemometer lol Send me an email and if I find it I’ll send it over. [e-mail]

[@Idefix70]

Thats actually very interesting! It would be nice to see how they work with a Dewalt planer that has a blower on it and which would work best :-) And how a router table works with both of them and the residual dust that gets put in the air. Thanks for this video!

[@StockroomSupply]

Honestly both units would work quite well with the Dewalt planer. Because it has a 4” dust port and the assisted blower it is a very easy machine to collect dust and chips from. Of course the Record would still be superior due to the higher CFM and static pressure rating….especially off a long length of hose.

[@jeffbrooks7773]

Awesome video! Very helpful!!!

[@danphilpott6302]

Disregard my last. Made comment half way through. Great content!

[@kevint8886]

nice job, very interesting, thank you

[@danphilpott6302]

I love your content! I think you are getting low numbers because your device is not capturing all the air flow. Some escaping around your measuring device.

[@jimaspinii7579]

Great info!

[@rhuynh]

Great video and explanation but probably the most impressive part of this video isn't hat the dust collection fittings fit haha

[@horsetowater]

8:02 she was right!

[@Cythraul9]

The tests aren't sufficiently accurate because the adapter used on the Mikron was too large.

[@LeftenantBeige]

I mean, “thanks honey” 7:48