Using dust deputy with central vacuum for dust collection?

[Ruahrc]

I just got a central vacuum installed in my house. I have read a number of threads here on using a central vacuum system as a dust collection device in the garage. I understand the concepts that were brought up in those threads: central vacuums usually are high static pressure but lower CFMs, whereas dust collection is usually low static pressure but high CFMs. There was also the concern of flammability of sawdust/metal dust and sucking it up into your central vacuum.

I've been doing a little research about this, and want to know if the following solution would work... what if I installed an Oneida dust deputy dust separator in line with the vacuum? This would greatly reduce the amount of sawdust being sucked into the vacuum, and keep the sawdust debris separate from the other general vacuum debris (if that really mattered). My central vacuum is a cyclonic separator model already, but I could see adding a second dedicated separator specifically to catch sawdust.

I look at the specs of my vacuum and compare them against something like the Bosch VAC090A, the specs are not really all that different. Suction pressure is way higher but CFMs are not that much different. So then is there any reason my central vacuum work just about as good if not better at dust extraction?

My central vacuum:
static pressure 208" (converts to 517 millibars)
122 CFM

Bosch VAC090A:
242 millibar suction pressure
150 CFM

Keep in mind I am talking in the context of small-scale garage workshop tools. A miter saw, sander, etc. Obviously a 6000CFM mega-collector unit using 6" piping will work better than a central vacuum or standalone dust collector but that is also way overkill for my needs which is just a small garage workshop.

Thoughts?

Ruahrc

 

[Ainsley]

It will work but I don't like the idea. The dust deputy isn't perfect and I woudn't want a lot of that stuff getting into the household vac.
Are you thinking of doing some 2-1/2" duct and gates or just a hose to whichever tool you're using?
This is my setup (kinda hard to see the vac)

 

[dnschmidt]

The dust deputy is great. I use it in my shop for sanding paint and MDF board which is brutal on vacuum cleaner filters as it's so small. With the dust deputy I very seldom have to clean my filters in the shop vac that I use with the dust deputy. All of the fine powder (which you certainly don't want to breath) ends up in the dust deputy. GREAT TOOL.

 

[Ed ke6bnl]

been thinking the same thing, but also remembered that we only changed the central house vacuum 2 times in the last year. but it is a great item I have one set up in the shop. I mounted it on tom of an old dead stainless shop vac. container, still want to make them so they travel together.