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hf 1hp dust collector ???

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Forum topic by timbecht posted 02-25-2021 08:29 PM 376 views 0 times favorited 8 replies Add to Favorites Watch
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timbecht

15 posts in 2909 days


02-25-2021 08:29 PM

a buddy gave me a harbor freight 1hp dust collector and would like to use for my small shop but need input on duct size would 2.5inch piping be better than 4inch on this unit longest run would be like 15 feet. any help would be greatly helpfull


8 replies so far

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Kudzupatch

174 posts in 2264 days


#1 posted 02-25-2021 08:35 PM

No. Larger dia, means more air flow or rather more volume and that is critical in dust collection. It is not so much about suctions but grad big amounts of air pulling the dust away. Go with the 4”.

-- Jeff Horton * Kudzu Craft skin boats* www.kudzucraft.com

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Fred Hargis

6926 posts in 3548 days


#2 posted 02-25-2021 09:01 PM

What he said^^^^. That DC is going to be marginal in collecting dust, using a hose less than 4” will only make things worse.

-- Our village hasn't lost it's idiot, he was elected to congress.

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Kelly

3495 posts in 3999 days


#3 posted 02-25-2021 09:50 PM

Yep, I leave the 2-1/2 for my shop vacs.

If you have a lot of shop area to cover, the HF is going to be a questionable solution. Start with putting it center of everything, to make the runs as short as possible.

I like swapping hoses at the collector, because every gate is a minor leak. A small collector cannot afford them. Of course, that isn’t practical in many shop situations.

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JohnDon

156 posts in 2225 days


#4 posted 02-25-2021 11:45 PM

Agree that 4” will offer less resistance to air flow. However, you could have problems with using 4” for a vertical (updraft) run- say from a tool to a ceiling run. You’re fighting gravity, making it hard to move larger (heavier) chips.

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timbecht

15 posts in 2909 days


#5 posted 02-26-2021 07:46 PM

ok thanks guys

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75c

208 posts in 82 days


#6 posted 02-27-2021 02:16 PM



Agree that 4” will offer less resistance to air flow. However, you could have problems with using 4” for a vertical (updraft) run- say from a tool to a ceiling run. You re fighting gravity, making it hard to move larger (heavier) chips.

- JohnDon

The bad sawdust is small like microscopic. Hand plane chips you can sweep up. Never saw a chip made by a power tool that I would even think would have a chance falling out of the air stream. Keep you filter clean or better yet if possible run the exhaust side outside no restriction that way.

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WoodenDreams

1288 posts in 966 days


#7 posted 02-27-2021 08:26 PM

HF has two 1hp dust collectors.

The model #31810, has four impellor blades, and a 2 1/2” reduction adapter at the 4” inlet. This is the model I have. I left it with the 2 1/2” adapter and using 2 1/2” hose with it.

The model #61808, has six impellor blades, and as far as I know, does come with a 2 1/2” reduction adapter. This model I would go with the 4” hose.

If you don’t see a model #, unscrew the inlet plate to see which impellor blade you have.

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tvrgeek

1764 posts in 2704 days


#8 posted 02-27-2021 09:22 PM

You have a underpowered chip picker-upper, dust re-distributor. Basically worse than useless as you are putting the deadly fine dust into the air under power.

Your “buddy” gave it to you for a reason. It is junk. For ONE tool, start with a 3 HP with pleated canisters, preferably with a cyclone in front. The Onedia is a good choice. I am waiting for my 5 HP ClearView as my 1 3/4 Jet, with canister, was only useable if I had it on a cart and connected one machine at a time. 3 to 5 is what you need for just one TS or BS if you want it ducted and to actually work.

2 1/2 is what you use on a vacuum cleaner for a pad sander.

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