In seeking superior dust extraction machinery, we came across a small British company, Camvac, who were using their background in industrial vacuum cleaning systems to devise a new range of what can genuinely be
called "Dust Extractors" at very reasonable prices. We purchased one of these units for our own workshop and now, after 24 months of practical testing, are happy to
recommend this product to you without reservation.
The filtration provided by this unit is achieved through three stages of filtration, achieving the removal of particles down to 0.5 microns. (Most of the "old"
so-called Dust Extractors were incapable of removing particles below about 5 microns in size: it is the particles which fall into the 1 micron to 5 micron range that do
most damage to human tissue and organs. Hence, in recirculating these particles, the Chip Extractor-style of unit is actively damaging the user's health, NOT
protecting it at all!) The first stage is a large-area washable cloth filter, the second is a fine, easily replaceable paper filter and the final stage is a further cloth filter. Part of the secret of
the dust- AND chip-handling capability of these units is that the fan is located after the
filtration stage and the extracted waste does not have to pass through the impeller before it reaches the collection sack. This arrangement also ensures that all of the dust-containing parts of
the system are under vacuum the whole time so that there is no danger of leakage of particulates back into the workshop atmosphere. I also know from years of using a chip extractor that
the systems which pass the waste through the impeller have an irritating habit of blocking all too frequently. I can honestly say
that in two years I have only rarely experienced a blocked hose on my Camvac system - and I use it for "vacuuming" out the workshop floor with all of its shavings too!
The machine that we feature above is the best-selling Camvac CGV286W which is conveniently wall-mounted, as illustrated, and will ably cope with the needs of the average
small workshop. I use mine to provide extraction to my lathe, bandsaw and sander, and building an efficient extraction system with the components available from Camvac is child's
play (rather like "big boys" Lego, in fact!)
High capacity, floor mounted "bin" style models are also available and these are listed below
- the GV336, a typical example, is illustrated, right. These larger units can be equipped with additional motors, creating double and even triple motor systems of enormous suction
capacity. The filtration efficiency remains as excellent as the wall mounted model featured above, with filtration through the triple stage system down to 0.5 micron particle size.
The toolkits and accessories listed above are also compatible with these machines. A specification table comparing their various features is provided towards the end of this
page. Industrial users, in particular, should please note that the duty cycle should not exceed two hours on followed by at least twenty minutes off.
For accessories to help you pipe up a complete dust extraction system, see the page entitled CamVac Accessories. Please note that CamVac extractors are supplied without any hose
as standard, enabling you to contruct a system to meet your own specific requirements.