I am looking to purchase a low noise dust collector for my shop. I will
need about 1200 cfm at 115/230 volts. Any recommendations?
What is the consensus Delta, Jet or other?
Mooresville, NC 28115
I like my Oneida (3 hp) as well though I still put it in a separate room. I
have a Delta 850 (1-1/2 hp) as well and the noise factors are roughly the
What really amazes me is the noise generated by leaky blast gates.
I like my 1.5hp Oneida too. I got the sound-reducing muffler for mine.
It's WAY less annoying than a ShopVac. It's not quiet, but it is
non-annoying enough that I often just leave it on for minutes at
a time between operations.
Dennis M. O'Connor email@example.com
First of all, the CFM ratings you see on most dust collectors are largely
meaningless. What you are looking for is "real world" numbers; i.e.,
the CFM when you have 6-10" of static pressure resisting the air flow,
rather than some measurement taken under very "ideal" conditions. In
general, to get 1200 CFM of ***REAL*** air flow at 8-10" of static
pressure will require a well-designed 14" impeller spinning at 3450 RPM,
and it will take a 3-5 HP motor to spin it properly. A lot of so-called
1000-1300 CFM dust "collectors" have trouble pulling 300 CFM in a real
shop, especially if you use 4" hoses. A 10" table saw needs 500-700 CFM
under the table and another 300-400 above the table just to properly
conduct the dust-laden air to the collector and not to your nose.
If you want a dust collector that WORKS, get a cyclone, but don't trust
every "cyclone" on the market. A few of them are well designed, but others
aren't. Oneida makes decent units, and woodsucker is OK. RUN (don't walk)
from most of the importers. I have a friend who made and installed
dust collectors, including cyclones, for years before changing his company
into a different product mix. He called an importer on their specs recently
and challenged them. His opinion? I better not say because some of these
outfits are pretty defensive about the undefensible specs they publish...
For the real scoop on dust collection, go to Bill Pentz's web site for a
good education on dust collection [he almost died from wood dust that
aggravated existing lung damage from Viet Nam. I have copies of email
from others who had a lot of respiratory problems until they installed
a well-designed cyclone (one even replaced a major brand-name cyclone
with one using Bill's approach, and his lung problems went away)]:
I have been collaborating with Bill to introduce to the market a top
quality, does-what-it's-supposed-to cyclone in kit form. We now have the
cyclone unit itself available as a kit, and will have a blower housing in
a few days. Other components are available as indicated on his site.
I don't like using newsgroups for advertising, but friends don't let friends
buy stuff that can be dangerous to their health, and a lot of these machines
distribute fine dust all over the shop instead of trapping it, which is what
happens when the collectors use cloth bags as "filters".
Those filter bags pass particles as large as 30 microns, and those fine
particles are like tobacco smoke -- they go deep into the lungs where they
can do a LOT of mischief, especially nasty stuff like MDF. It's a major
I thought I wanted one of those conventional machines too until I
encountered Bill's experiences and realized just how badly I *don't* want
one of those. Cyclones are the ONLY way to go if you want to protect
If you want to know more, contact me privately by email.
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