Re: Which DC?
I am sure that there are others that can say the same thing about any DC unit. it depends on what you are using. Someone using an Kraemer industreal unit, would say an Onedia or Clearvue is just a toy.
Originally Posted by RapidCut
The CT030 was the big step up unit just 2-3 years ago. The CX comes with a pleated canister pre-installed. Go back some years and every DC came with both a cloth upper and lower bag. Now we look at that and cringe.
So it comes back to how good is good enough. I was like you in saying that who needs to spend the money. what I have it good enough for me. You can make up your own mind as to if a $50 shop vac is fine all the way to $20,000+ outdoor towers. But don't say that knowledge about why is ever unimportant.
Sorry, I don't mean to be rude but I see post after post on this forum of people crunching numbers on some formula and then conclude a certain DC doesn't handle a certain job (ultra fine dust). I can understand doing some research but the number crunching has gotten a little - old. Not everyone is going to buy a 5HP dust collector. If some people require a dust collector that costs $2000 and requires 5HP worth of electricity then so be it.
An Ostrige believes that if it sticks it's head in the sand so that it can't see anyone, then no-one can see it. If a 4" pipe works for you in removing "dust" from the air, then that is all you need.
The CX400 has a 6" inlet. I use 4" though. And for 12' of hose, that is all I will ever require.
Your question was multiple parts. I will try better to answer it for you.
Can you be more specific on how these don't do well with the ultra fine dust? (2)
You have me wondering if my cleaner is sub-standard? (3)
I don't think the filter is any different than any other 1 micron filter?
As far as sucking - I find it hard to believe that another DC will have as much suction as the CX400 for the same price. Have you used a CX400?
1&2. these machines by design cannot give you anywhere near the posted CFM nor airspeed that they post in the selling spec sheet. As an experiment. disconnect the hose from the front of your DC, then turn on your DC and put your hand two feet away from the port. Do you feel any suction? Probably no. slowly move your hand towards the port until you feel it sucking. measure the distance. Now for the science bit. go get some baby powder (corn starch, or baking soda will do) and a flashlight. dust the air with the baby power the same distance away from the port that your said you feel suction. the flashlight will let you see the dust in the air. does it all get sucked into your DC? probably not. That baby power is 10u in size.. the wood dust you are trying to get is smaller than 1u.
Now think about how the 12' of hose reduces your suction as it adds air turbulence. That hose is connected to your table saw, but probably is further away from your blade than your measurement. How effective is that port going to be in removing dust from that spinning blade that is blowing the dust away from your suction.
3. The filter is just that. It helps to stop the dust that you capture from getting blown back out the other side. Sawdust is very large. I wouldn't even call it dust, it's small wood chips. The deadly fine wood dust is 1u (micron) and smaller. So your fiter it trying to capture these particles and hold them from getting out. The filter works better when it has a cake of particles that will help trap the smaller ones from getting blown back out through it's media.
4. I don't know if there is another better DC for the sub $500 mark. I bet there is but it doesn't really matter. The real statement should be. Having something if far better than having nothing. Having something better, is more desirable than having something worse. Life is not fair, and we live with what we have got.
People are like a box of chocolates. It's hard to tell initially which ones are nuts.