Thread: Dust Collector

Adequate do do what??

Originally posted by Tim the Timber Turner:
Adequate do do what??

Collect dust, one would have to think...

Iain mate, I have no idea what mine is without going out to the workshop and having a look. But what I can tell you is that I use mine to clean the floor regularly and it picks up nails and bits and pieces and shoots them through no worries. A bit of a clunk when they hit the blades thought, but the blades arn't showing any signs of wear.

Cheers...

Operate with the 12 1/2" Thicknesser, that is the biggest producer of rubbish I have.
I would also attach it to other machines but only one at a time.
I am consider a portable machine (on trolley, attach short hose to machine in use).
Most thing I use are adequately covered with a shop vac but I would use this for drill press when sanding, small belt sander, lathe and bandsaw.

Hi Iain
While not having any experience extracting a Thicknesser I offer a few points from my own experience.

For not much more money you could get a 2hp
single bag unit which won't take up much more room. The advantage of doing this is more suck and a bigger hose size.

If you are going to use the unit as a mobile.
I would strongly suggest you replace the top bag with a neddlefelt one because the standard bag on most units won't filter the fine dust. Don't forget you are going to inhale this exausted air.
Ace Filters in Melbourne will make any size filterbag and are very reasonable price-wise.
I would install as tall a bag as your head room permits. A bigger bag increases efficency.

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Some days I turns thisaway, somedays I turns thataway and other days I don't turn at all.

Iain,I recall that there may be some previous posts on this topic...have a look back thru the archives....
Cheers

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Johnno

G'day Iain
Should do the job no worries one machine at a time with no more than say 3m flex tube.
cheers
Rod

Iain.
I have a 1h.p.650cfm.Chinese made model, purchased on special from Carbatec at last years W.W.W.Show.(same as on p.24 of their current cattledog.) It works very well with about 2m.x 100ml hose ,and on one machine at a time.Easy to move around the workshop as it is on castors. Remember it is a dust extractor, and even small shavings off the lathe will quickly block it up.Used in combination with my Racal, particularly when sanding, it keeps the dust to a minimal level. Neilssorry,Tims! suggestion re. replacing the top bag is a good one and I will probably look into that soon. Regards, John H.

[This message has been edited by John Hambly (edited 06 June 2002).]

[This message has been edited by John Hambly (edited 14 June 2002).]

I am sure he meant to say Tim

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Ian () Robertson
"We do good turns every day"

Iain,I think that in the analysis of cfm drawpower your 650 cfm in a 1hp unit is ok provided you use it solely with the thicknesser.
I have a 2hp unit with blastgates and a pvc in suction set-up.Its capable of handling the capacity of around 1350 cfm which means if necessary I can have 2-3 blast gates open without due diminish of suction on those units.
There is a chart around giving the nominal values of cfm expected off each type of woodworking machine for the small shop...and for the life of me I cannot locate it but gives the sawbench at the top of the range or thereabouts with about 450 cfm.
I have used mine on occasion to "vacuum" the floor and does it with no problems at all as will your 1hp unit like I had previously providing your dedicated suction is addressed to the same purpose.
Hope this helps
Cheers

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Johnno

I also have a question about the small 1HP units. I have seen that Carba-Tec sell a single bag 1HP unit as well as a two bag unit. Are the single bag collectors any good or should you make the space for the larger two bag collector?.

Regards,

Peter.

Peter,
One problem with smaller bags is the increased frequency of emptying, increasing your exposure to fine dust ….

As for collection efficiency, I’m not sure what micron capacity the standard bag material is rated to, I would definitely ask to see some form of written test result – never ever rely on word of mouth.

If it can’t filter out finer dusts (<1 - 5 micron), then its defeated the purpose of being small and should be set up outdoors with connecting suction hose.
I’m guessing with this model to achieve a good capture efficiency you’d need to look further in to Tims advice.

Hope this helps,
Mark

[This message has been edited by Eastie (edited 07 June 2002).]

Thanks for the responses, Johnno, 2hp is probably going to be an overkill and a health risk to the cat
As for double units, the size difference is only vertical, is that really a major problem.
Most work areas are restricted in floor space and a double decked bag shoudn't make a lot of difference.
I intend to take a look at the 5 micron bags and see what is in store.

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Iain, I wasn't suggesting that you go for a 2hp unit..I used that as a comparison.
I had a 1hp unit beore I upgraded to larger units and it handled most provided you dedicated it to the particular machine you were using, was bag under/bag over for fine micron collection.
It was also capable of "vacuuming" all the bits off of the floor.
One thing I do do is wash the top bag/s every six months..tho 'Er Indoors don't take too kindly to the assault on the washin' machine...but it does take out all that fine stuff that adheres to the bag even after a couple of taps to knock it down!
Cheers

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Johnno

Sorry Johnno, I was not suggesting that you were suggesting that suggesting a 2 hp unit was a better suggestion than a 2hp.
I was only joking about the cat, I hate the damned things, but we do have Corgis which are a similar size and I have no idea how to remove a corgi from a 4" hose.
I think a 1hp would suffice my needs and I am sure I will regret the decision later.

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: http://community.webshots.com/user/iain49