Advice needed -- problem -- Super Dust Deputy - inlet and outlet sizing

  • Advertise with us

« back to Power Tools, Hardware and Accessories forum

Forum topic by HowardInToronto posted 07-26-2021 10:45 PM 951 views 0 times favorited 10 replies Add to Favorites Watch
View HowardInToronto's profile


85 posts in 2915 days

07-26-2021 10:45 PM

Topic tags/keywords: tip

I just bought a Super Dust Deputy. Its 5” inlet and 6” outlet are causing me big probs.

I have 6” hoses off my machines so I bought an HVAC 6” to 5” reducer (uncrimped at both ends).

The SDD’s inlet is 5” (actually it’s 5 1/8). And the SDD’s outlet is 6” (really it’s 6 1/8”). My hose won’t fit over it either.

What is your advice to modify SOMETHING/ANYTHING to get these things to fit efficiently.

And – what are your thoughts re any advice so I can get this going fast -
- how much extra room do I acquire if I buy crimped reducers and “un-crimp” some of the crimps
- does it make sense to drill out the reducer’s rivets, move the collar a little and use a #4 screw to hold it in the new position
- where to buy rubber-type plumbing 6” to 5” reducer fitting
Advice needed—problem— Super Dust Deputy – inlet and outlet sizing



10 replies so far

View Ocelot's profile


3341 posts in 3851 days

#1 posted 07-27-2021 02:09 AM

Pictures would help

-- I intended to be a woodworker, but turned into a tool and lumber collector.

View HowardInToronto's profile


85 posts in 2915 days

#2 posted 07-27-2021 03:15 AM

Thanks Ocelot – I find the pic posting process here a tad difficult

View Mike_D_S's profile


778 posts in 3427 days

#3 posted 07-27-2021 03:55 AM

I have the same sort of set up and here’s a couple of options:

1. PowerTec coupler: Powertec coupler on Amazon
Listing shows the OD of the coupler at the 5” end to by 4 7/8” which I think should slip inside the SDD inlet.

2. Fernco style coupler: Rubber coupler on Home Depot%
Specs say the IDs are 5.5” and 4.25” but you should be able to crank them down. But you’ll need a piece of 4” hose coupler to attach the hose.

3. Duct Reducer: Reducer at HD
This is what I’m using and was able to open up the 5” end slightly by rotating it over a piece of steel pipe to flare the 5” end slightly. It fits very very tightly over the SDD inlet after flaring it a little. I chose this as it was immediately available at the HD, but it also has the advantage of a smoother transition.

I’m sure there are some higher $ options like a nordfab reducer that would work as well, but the metal reducer above works fine and you could always cut a few slots in the 5” coupler section to give it a better fit and then seal it with tape. I’m using tape in any case to make sure I have a good seal.

-- No honey, that's not new, I've had that forever......

View Mike_D_S's profile


778 posts in 3427 days

#4 posted 07-27-2021 03:58 AM

sorry, just realized you wanted 6” down to 5” so my post may not be all that helpful. I’ll leave it up anyway as it may be useful to someone, but I think the same logic applies using a 6” to 5” reducer and short piece of 6” duct for the hose attachment. The 5” end could be crimped down just a bit to go in the SDD inlet I think.

-- No honey, that's not new, I've had that forever......

View CaptainKlutz's profile


4859 posts in 2707 days

#5 posted 07-27-2021 05:41 AM

5” sized ports/fittings are hard to find.
I started a thread attempting to document what I could I find.

If you want rubber couplings; the Fernco Master catalog of standard parts is easy to use. I think there is a better option, but you can make a 1056-65 convert from 6” to 5”. Need big squeeze on band clamps to close down OD on each end, but it will work.

BTW – not sure you will like the impact your SDD creates? If all machine connections are 6”, and SDD inlet is 5”; you will slow down airflow increasing the size from 5” port to 6” hose to machine. This is not recommended practice in dust collection plumbing? Why not use the Dust Deputy XL that offers 6” inlet and outlet ports?

Best Luck.

-- If it wasn't for bad luck, I wouldn't have no luck at all, Doom, despair, agony on me… - Albert King - Born Under a Bad Sign released 1967

View EarlS's profile


4724 posts in 3561 days

#6 posted 07-27-2021 11:23 AM

If I recall correctly, Oneida just happens to have a pretty decent selection of adapters. They aren’t cheap though.

My solution was to take the SDD to the local big box store or some place that sells Fernco rubber adapters and wander the aisles trying out the fittings until you find something that works. I’ve also had luck with the thin wall rigid drain pipe and fittings that can be found in the garden centers of the big box stores.

You might also consider getting some hose from Oneida.

-- Earl "I'm a pessamist - generally that increases the chance that things will turn out better than expected"

View tvrgeek's profile


2259 posts in 2862 days

#7 posted 07-27-2021 02:54 PM

A bit of aluminum flashing and foil tape can fix a lot of quick fix issues.

View HowardInToronto's profile


85 posts in 2915 days

#8 posted 07-27-2021 04:51 PM

Thanks Earl – I might just do the Fernco thing

But TVRGeek – that’s a great idea – I just happen to have tons of flashing on hand – thanks for that

View Kelly's profile


3752 posts in 4157 days

#9 posted 07-27-2021 05:44 PM

I made my own for my SSD and my four bag Jet from plywood.

View HowardInToronto's profile


85 posts in 2915 days

#10 posted 07-28-2021 11:20 PM

Hi all,

I think I solved my Super Dust Deputy problem

- 6” hose will fit perfectly directly on the SDD’s outlet
this requires close to nil in the way of wrestling the hose onto the inlet
you just have to reeeeeally open up the clamp

- Oneida supplies a 5” collar to use for installing duct rather than hose onto the inlet
- it fits perfectly onto the uncrimped 5” side of the 6” to 5” reducer
it seems you still need to tape it up to close things off leaks etc

- this now poses 2 questions/opportunities/problems
I’ll need to break down and just buy 5” hose and fittings to replace the 6” hose and use it the way it’s designed
(admittedly, rather unusual in the typical Rosenberg Brain Process way of doing things)
and just say goodbye to my 6” hose and fittings

As I continue to get myself organized, I’ll keep you posted.

Have your say...

You must be signed in to reply.

DISCLAIMER: Any posts on LJ are posted by individuals acting in their own right and do not necessarily reflect the views of LJ. LJ will not be held liable for the actions of any user.

Latest Projects | Latest Blog Entries | Latest Forum Topics