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Forum topic by laxbograt posted 10-04-2011 04:45 PM 818 views 0 times favorited 5 replies Add to Favorites Watch
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laxbograt

76 posts in 1887 days


10-04-2011 04:45 PM

Topic tags/keywords: dust collection upgrades

I have a couple questions regarding dust collection / collectors. I recently bought a used 1hp dc, it is definitely an upgrade from the shop vac, but I was wondering are there any upgrades I could do to increase its performance, ie motor size, etc…

Also I have already upgraded to a .5 micron canister filter.

Thanks for the info

Carlos


5 replies so far

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Tennwood

107 posts in 2642 days


#1 posted 10-04-2011 05:28 PM

I don’t think there is a lot you can do to increase the performance. What you got is limited by its rated CFM. I do offer these suggestions:

If you are going to run hard pipe (i.e. PVC or metal)

- make the runs as short as possible with as few bends as needed.

- getting the connections between PVC and the plastic DC connections is a bit of a puzzle, they don’t always fit even though they are supposed to.

- I found that having a blast gate at every tool helps, but also recently found that the blast gates have to be removed and cleaned out as they get crud in the slots and won’t close all the way.

- I wrote a blog about my installation a couple of years ago. Much of my system has changed though since then. http://lumberjocks.com/Tennwood/blog/11405 If I had the room, energy and $ I would rip it all out and start over.

- Flex hoses are great but they do drop the efficiency do to internal friction.

- I wouldn’t worry about static electricity build up causing an explosion. There are many who will disagree with this, but most of the articles and blogs I have read (and I read a bunch), in small home shop setups, it is not an issue.

If you are just running one hose to a machine at a time, you shouldn’t have any problems with efficiency, even with a flex hose.

Even though I have a canister, I find I still need to remove it and clean it every time I empty the bag. It gets pretty junky, even if I bang the dust out or use the paddles.

My biggest suggestions is to purchase a trash can cyclone lid (http://www.woodcraft.com/Family/2004310/Trash-Can-Cyclone-Lid.aspx). This is a huge helper in keeping the chips out of the bag and MUCH easier to clean out. Just don’t let it get too full or it will start sucking up the chips out of the can and into the bag.

Good luck.

-- Jim, SE Tennessee, "Don't spare the kindling Dear, we have plenty"

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Bill White

4449 posts in 3421 days


#2 posted 10-04-2011 05:36 PM

Best thing ya did was to add the good filter.
You’re gonna be kinda limited as to other upgrades due to the size of the impeller/motor, but you’ll sure enjoy the lack of noise.
Bill

-- bill@magraphics.us

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laxbograt

76 posts in 1887 days


#3 posted 10-04-2011 06:24 PM

I don’t understand how motor size seems to be a limiting factor in dust collectors if you have two exact systems and one has a 1hp motor it is rated at like around 700 cfm were as a 1.5hp is rated at 1200 cfm. The motor is spinning at the same 3450 rpms?

Puzzled
Carlos

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Tennwood

107 posts in 2642 days


#4 posted 10-04-2011 06:33 PM

It is the size of the housing and impeller. The larger motor is required to move more air.

-- Jim, SE Tennessee, "Don't spare the kindling Dear, we have plenty"

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laxbograt

76 posts in 1887 days


#5 posted 10-04-2011 06:51 PM

And I imagine there is no upgrading the impeller.

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