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Forum topic by Floyd Hall posted 04-20-2019 10:55 PM 317 views 0 times favorited 7 replies Add to Favorites Watch
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Floyd Hall

141 posts in 633 days


04-20-2019 10:55 PM

Topic tags/keywords: question

Hi all,

Something just came up on line—an old-school dust collector/blower with a 1/2 hp Dayton motor on it.

My question. I just bought a Powermatic air cleaner which I figure is good for the fine stuff. My shop is about 15ft x 30ft and I was thinking about setting up some ductwork along the rafters on the one wall with a 55-gal barrel in the corner. There would be 6i ductwork about 20 feet along the wall in the rafters with two 8ft extensions down to the floor. One extension would serve a RAS/chopsaw station and the other a collector on the floor. Basically I would sweep sawdust into the collector at the end of the day, then turn the air cleaner on for the fine stuff.

Will a 1/2 hp motor handle this?

Floyd


7 replies so far

View GrantA's profile

GrantA

1481 posts in 1769 days


#1 posted 04-20-2019 11:02 PM

Nope. Ain’t gonna cut it. That may have been used as an inline booster or something

View Floyd Hall's profile

Floyd Hall

141 posts in 633 days


#2 posted 04-20-2019 11:33 PM



Nope. Ain t gonna cut it.
- GrantA

How much motor do you think I would need?

View WoodenDreams's profile

WoodenDreams

582 posts in 273 days


#3 posted 04-21-2019 07:58 PM

1/2hp motor…. sounds like a shop vac size motor. probably ok with a 1 1/2” or 2 1/4” hose. What is the inlet size and the cfm rating that size hose, for that collector.

View Sawdust2012's profile

Sawdust2012

172 posts in 2074 days


#4 posted 04-21-2019 08:00 PM

You need at least 1.5 hp.

View Floyd Hall's profile

Floyd Hall

141 posts in 633 days


#5 posted 04-21-2019 09:41 PM

Thanks all.

The consensus is I should pass on this. Other than power, the big issue for me is that it requires a fairly large bag off to the side, so the unit will take up 3-4 square feet, and that’s just too much for my small shop. Since I already have a Powermatic air filtration unit, I figure I’ll just stick with shop vacs or to get something like this when the time comes.

https://www.grizzly.com/products/Grizzly-1-HP-Wall-Hanging-Dust-Collector/G0710?gclid=EAIaIQobChMI9raQ8ovi4QIVgrXACh2aFAWSEAQYCyABEgIzlfD_BwE

Thanks again,

Floyd

View HackFabrication's profile

HackFabrication

126 posts in 73 days


#6 posted 04-22-2019 12:03 PM

Based on the system you want to hook up, you’d be better off acquiring a 2hp or larger dust collector. I’d go directly past the 1hp system you posted, and up to the Grizzly 2hp or larger. For a bit over $1000, you can get this: https://www.grizzly.com/products/Grizzly-2-HP-Portable-Cyclone-Dust-Collector/G0861. And it will definitely do a better job than any wall mount system. However, going to a 3+hp system is even better, if you plan long runs and multiple tools being used: https://www.grizzly.com/products/Grizzly-3-HP-Portable-Cyclone-Dust-Collector/G0862

I put a bit of work (and a bit of money) into modding my ~2hp Harbor Freight DC (https://www.lumberjocks.com/topics/303647), and I can say that it would be a better economic decision to just ‘pay once, cry once’. There are countless pages of information on the internet in regards to dust collection. And I read a lot of them. There are a lot of conflicting opinions, and a lot of ‘facts’. But the general consensus is: airflow, airflow, airflow. You’re only going to get this with a larger impeller which requires a larger motor to spin it.

-- "In the end, it's all Hack..."

View Floyd Hall's profile

Floyd Hall

141 posts in 633 days


#7 posted 04-22-2019 05:56 PM



Based on the system you want to hook up, you d be better off acquiring a 2hp or larger dust collector. I d go directly past the 1hp system you posted, and up to the Grizzly 2hp or larger. For a bit over $1000, you can get this: https://www.grizzly.com/products/Grizzly-2-HP-Portable-Cyclone-Dust-Collector/G0861. And it will definitely do a better job than any wall mount system.
- HackFabrication

That’s probably more than I’ll be able to spend for the near term, but I do know 2 hp units come up regularly online, so I’ll keep an eye out. I understand ductwork can quickly double the price, though I’m really looking at a pretty limited system. Anyway, that’s one consideration. The bigger consideration is really space. I’ve decided to forego a big table saw station in favor of a mobile 2 hp table ‘old arn’ saw for ripping and a radial arm saw for cross cuts and dados. Since I already have an air cleaner—a Powermatic 1200 that I just purchased—what I really need is a high power/high capacity shop vac for the heavy stuff. What I was hoping to set up was a ductwork extension that reached to the floor that I could just sweep dust into. I used to work in a cabinet shop and that worked just fine.

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