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Old Mon 22 March 2010, 10:28
Just call me: 15mgtar
United States of America
Can I use this for vacuum pump?

Hi all,
can I use this blower as a vacuum pump?
I really hate burning anymore of the house vacuum cleaner.
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Old Mon 22 March 2010, 10:34
Just call me: Ken
sure you can any blower can be use as a dust collector, the question is only how effective...
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Old Mon 22 March 2010, 14:33
Just call me: Brad #10
United States of America
15mgtar, are you looking to use that as a vacuum pump or a dust collector?

It doesn't look like it will pull very much vacuum to me; seems to be more of a high volume low pressure device.

As a dust collector, I'd be concerned about large chips and that squirrel cage, so you'd probably want some sort of chip separator in front of it.
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Old Mon 22 March 2010, 18:06
Just call me: Heath
Cornwall, Ontario
A Thein separator would work.
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Old Mon 22 March 2010, 18:52
Just call me: David
Hi 15mgtar,

I've just setup vac hold down on my Mechmate and I experimented with a number of pumps borrowed from a vendor and settled on a 10HP roots blower with 3" ins and outs. I tried a standard 10 hp blower like the one in you picture. It just doesn't work. It pulls about 2-3 inches Hg at best. I even tried a 15hp regenerative blower and that achieved 7-9 inches. The air volume was incredible, and the hold down power was acceptable, but pulled almost 40 amps. I also tried vane pumps (becker style) in a range of hp. Those pulled an astounding 24-25" Hg but to achieve good air volume like the roots, I had to shell out some major $$$$. They are the best in terms of noise level and vac performance. The roots I ended up with will pull about 18" and will do about 200 CFM for air volume. All the equipment I refered to were referbished. The roots set me back about $1000 for just the pump. The whole setup with plumbing, filter, inverter set us back an additional $300. Cheap when you consider a commercial setup is about $3500 - $4000 for equivilent performance.

Vac hold down is awsome.

Good luck
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Old Tue 23 March 2010, 04:09
Just call me: Irfan #33
David it would be great if you could post the pictures of your setup, and the vac base you have done up
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Old Tue 23 March 2010, 07:44
Just call me: Nils #12
Winter Park, FL
United States of America
You can't beat the price of a Harbor Freight dust collector when they are on sale.
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Old Fri 26 March 2010, 11:48
Just call me: David
Irfan, I'm posting pictures on my build log right now. I'll update it over the next week or so to current progress which is pretty much complete.
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