Scaring up a Storm

I have long been absolutely sold on the benefits of cyclonic dust separation methods – the combination of the convenience of easily emptying the collection bin, combined with a negligible amount of dust getting to the vacuum itself (and filling its dust bag).

Filterless, efficient dust collection – sounds like an advert for Dyson.

The fascinating thing is the concept is incredibly simple.  Pull a vacuum in an inverted cone through a central vertical port, and have the collection hose coming in the side of the cone angled so the dust-laden air is caused to spin all around the edge.  The dust is heavy, and spins to the outside where it impacts the container wall, slowing it and causing it to drop down towards the bin at the bottom.

The air on the other hand follows a torturous path from the entrance to the cone to the central exit – a path too convoluted that the dust can’t follow the twists and turns, so the dust that wasn’t removed by hitting the wall still drops out of the air stream.

You can make your own, particularly if you can work with sheet metal, but if you don’t have the skills, or simply the time there is finally another option available.

The Oneida Dust Deputy is now available under the Carbatec banner, and I was putting one through its paces today, and it was definitely achieving what I would expect of a cyclone dust collector.


I fitted it to my ShopVac vacuum, and the very nice thing is the fittings are compatible. The heavy hose leading from the vac to the top of the cyclone came with the cyclone, and it plugged straight in. The hose coming out of the side of the cone leads to the collection point from the tool.

The cyclone unit came with a few variety of fittings to ensure a wide variety of vacs would work with the cyclone.  It also came with 2 collection buckets – they do fill quickly, but I didn’t think a second bucket was necessary.  No matter – bonus.

Connecting the Cyclone to the Vac

A number of different methods are documented in the user manual, and I came up with this one as being particularly suitable for the model vacuum I am currently using .  I attached a couple of metal hooks to the top, which the bucket hangs off by the handle.  A brick in the vacuum itself at the front provides a counter balance (in this case, a couple of lead dive weights).

Cyclone conical section

It is interesting that the plastic chosen is both antistatic (a cyclone can build a significant charge!), and semi-transparent, so you can see the dust swirling.

All in all, an excellent unit, and if you are not inclined to make your own, this is a ready-made commercial version. I’ll shot some video of the unit in operation in the near future.

%d bloggers like this: