Super Dust Deputy cfm loss

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Review by secretgarden posted 80 days ago 2222 views 0 times favorited 7 comments Add to Favorites Watch
Super Dust Deputy cfm loss No-picture-s No-picture-s Click the pictures to enlarge them

I have a Jet 1200, a 2 hp with a 12 inch impeller attached to a Super Dust Deputy (SDD) sitting on top of a 55 metal drum. I used a Alnor anemometer Model RVA+ to measure the velocity and calculated the cfm at different duct set ups and found no meaningful loss of cfm.

Measurements as follows;

1. Measured at the 6 inch intake with a cheap metal 90 degree elbow (after removing the two 4 ” port) measured velocity at 5700 fpm/cfm 1114

2. same as above but with 3 cheap 6 ” metal Home Depot 90 degree elbows and 4 ft of 6 ” snap together pipe, 5004 fpm/1001 cfm

3. same as #2 but through a metal Super Dust Deputy with 5 ft of 5” metal pipe as the intake, 5852 fpm/1170 cfm

4. Same DC with cheap 90 degree elbow attached to 6 ’ flex 8 ft long, 4844 fpm/969 cfm

5. Same as #4 thru SDD and 5 ft of 5 inch metal pipe as the intake, 5447 fpm/1089 cfm

Comparing #1 to #3 shows no significant loss through the SDD and additionally comparing the data from #2 and #4 shows the difference between the flex and metal ducting effects on the cfm to be minor, 1001 cfm to 969 cfm.

Therefore I believe that the Oneida SDD does not significantly impede the CFM in a 2hp DC using either flex or metal ducting.

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13 posts in 96 days

7 comments so far

View MJCD's profile


449 posts in 873 days

#1 posted 80 days ago

I used the SDD for several years, and found it to work great – it saved me a lot of money (no need to buy a full cyclone) – recently my shop expanded considerably, and I purchased a Clearvue. Short of needing a very powerful (5hp) cyclone, the SDD is a great investment.


-- Lead By Example; Make a Difference

View secretgarden's profile


13 posts in 96 days

#2 posted 80 days ago

I am in transition on a path to the clearview next year. I am considering the 16 inch impeller model and venting outside under my large deck. How did you make your choice between models, same horse power and a larger duct is the main difference that I can tell plus the extra $300.

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3425 posts in 2165 days

#3 posted 80 days ago

I have had a Super Dust Deputy hooked up to my little Jet dust collector for almost a year now …

Still haven’t had to empty the plastic bag on the Jet … I’m happy as clam with the SDD.

-- Gerry -- "I don't plan to ever really grow up ... I'm just going to learn how to act in public!"

View NormG's profile


3632 posts in 1505 days

#4 posted 80 days ago

I am looking at a HF DC (on sale for $149 at the moment) with a SDD attached

-- Norman

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2179 posts in 1385 days

#5 posted 79 days ago

A cyclone adds about 1-2” static pressure to a system which isn’t much…

-- Sometimes the creative process requires foul language. -- Charles Neil

View MJCD's profile


449 posts in 873 days

#6 posted 79 days ago


My shop expanded beyond the capability of my 1.5hp Delta single stage, with the SDD pre-impeller: a great setup, and I sold it on Craigslist for nearly what I paid for it – after about 3 years of use.

My choice came down to Oneida and Clearvue. I was very impressed with the SDD, and have the DD hooked to my shop vac (effective solutions). I went into the selection process with Oneida as the favorite, and Clearvue as the ‘user’s choice’ – Marc Spagnuolo (WoodWhisperer) and other YouTube jocks seemed to prefer the Clearvue (they sponsor part of Marc). I spoke with Marc, and his feedback was that Oneida’s had some Customer Service lapses – feedback he’s received from others.

Both Oneida and Clearvue had Christmas Specials – the comparable was $2,000 (Oneida) and $1,785 (Clearvue). Oneida was firm on their pricing; whereas Clearvue threw-in the 16” impeller upgrade, Wynn Nanos, plus free shipping – a combination I could not beat.

Certainly, the Clearvue requires assembly – and it’s not so much difficult as it is tedious and cumbersome – no special skills, but two people are necessary, unless you get creative on holding bulky things while trying to screw them: allow at least two days for assembly: I did it by myself. If you go Clearvue, purchase the Aluminum Hanger Bracket – this, and the Filter Clean Out Box (for attached filters) are easily self-constructed (which I did), but time consuming. The Assembly Manual is bare bones and partially misleading (I re-wrote the manual, and sent them a copy – I didn’t have access to any of their photos, and I did not put a ‘finished-edge’ on the wording and cross-referencing).

In retrospect, the Clearvue is probably the better value (IMO), though, a comparable Oneida is what I’d buy. Get the 16” Impeller – regardless of which unit you go with. Venting outside will reduce the sound level, as most of the sound derives from the transition into the filters – the motor sound isn’t that high.

If you want to compare notes – or need a sounding board for assembly grief and aggravation, contact me through the LJ e-mail.

-- Lead By Example; Make a Difference

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Mainiac Matt

3500 posts in 830 days

#7 posted 78 days ago

nice to see an objective review based on facts.

Thanks for going to the time and expense to put it all together for us.

-- Pine is fine, but Oak's no joke!

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