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Dust collection main trunk line

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Forum topic by Kaleb the Swede posted 11-14-2014 01:03 PM 871 views 0 times favorited 10 replies Add to Favorites Watch
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Kaleb the Swede

1727 posts in 1431 days


11-14-2014 01:03 PM

Topic tags/keywords: question

Hi there.

I have a 1.5 hp Baleigh Industrial dust collector. I have a run of 4 inch pvc that goes to my planer and table saw. I am going to add a port for my band saw that I just picked up recently.

This is my dust collector
http://wood.baileighindustrial.com/bag-dust-collector-dc-1300b

I run a straight shot from the collector at the far part of my garage for about 15 feet. It is about 4 feet off the ground. With the planer closest to the collector, next the band saw, then the table saw based on the configuration of my garage. I was planning on using wyes with a very short run of flex to each tool. I can’t do a trunk overhead because it would interfere with the garage door opening. I also use a trash can cyclone lid from woodcraft

My question is can the 1.5 hp dust collector use a 6 inch line for the trunk with reducers to 4 inch for my ports? I run on 110 if that has anything to do with it, I’m not an electric guy. Or should I just stay with 4 inch for everything because the collector would not have the cubic feet of airflow for the larger line.

Yes I read on Bill Pentz website, so let’s not get into that discussion.

Thanks,

The Swede

-- Just trying to build something beautiful


10 replies so far

View Fred Hargis's profile

Fred Hargis

3932 posts in 1955 days


#1 posted 11-14-2014 01:26 PM

Your collector would probably be OK with a 6” trunk, but if you choke that down to 4” at the tool you won’t gain anything in practical terms. Your flow will be limited to the 4” capacity and given that you are adding flex plus the separator, the air flow in the 6” may not be fast enough to keep the debris suspended (fall out and clog). You’re moving maybe 400 CFM through the 4” (+/-), if that does what you want there’s very little reason to change.

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

View Bill7255's profile

Bill7255

354 posts in 1746 days


#2 posted 11-14-2014 01:39 PM

The other thing to consider is if you ever want to change you system, you wont need to change your duct work. I am just now starting to run my duct work and will use 6”. I will need to go down to 4” for my saw, but will need two 4” ports, one for the saw and one for the overhead guard. 6” should give me the flow for both at the same time.

-- Bill R

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crank49

3981 posts in 2432 days


#3 posted 11-14-2014 01:59 PM

Put your cyclone trashcan as close to the planer as you can, then connect it to the planer with a short flex and to the trunk line with another short flex.

Instead of wasting money on the 6” trunk, buy another trashcan cyclone for the table saw and hook it up the same way.

You did not say what size your band saw was, but if it is a small one (12” or less) and has a 2 1/2” dust port, you can run it in 2 1/2” PVC all the way to the wye on the collector inlet.

Those collectors will run a 4” and 2 1/2” system at the same time with virtually no loss. Or a 5” trunk line. Not enough volume to handle a 6” unless it is only fine dust, like from a sander.

Unless you are looking to justify the purchase of a Clear Vue cyclone there is not much need in laboring over the Bill Pentz website, in my humble opinion. I have not done the studies he has done, but I did take care of all the dust control issues with a large foundry for 37 years and foundries are way harder to control and are way more hazardous than a wood shop. I haven’t killed anyone yet.

-- Michael: Hillary has a long list of accomplishments, though most DAs would refer to them as felonies.

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Kaleb the Swede

1727 posts in 1431 days


#4 posted 11-14-2014 02:06 PM

Thanks all for the responses. I think I am leaning heavily towards the 4 inch line. I just don’t want to set up a six inch line and have it not be strong enough to carry everything and have to clean it out every ten seconds.

Crank thanks a lot. That was very informative. My band saw is the Steel City Deluxe 14 inch band saw. It has a four inch port.

Thanks again all

-- Just trying to build something beautiful

View CharlesA's profile

CharlesA

3020 posts in 1259 days


#5 posted 11-14-2014 02:22 PM

I went with 4” line on my HF DC (similar to yours) and it works quite well. I did it for two reasons: 1) I used PVC, and 4” is standard and easy to get fittings, etc. 2) the main inlet on the DC is 5”—my understanding is that there is no value in expanding the size of ducting along the way.

I think you are already doing this, but I used Pentz’s diagram of how to run ducting as my guide. I would have done it differently, and less efficiently, without it.

-- "Man is the only animal which devours his own, for I can apply no milder term to the general prey of the rich on the poor." ~Thomas Jefferson

View dozer57's profile

dozer57

92 posts in 961 days


#6 posted 11-14-2014 05:14 PM



Put your cyclone trashcan as close to the planer as you can, then connect it to the planer with a short flex and to the trunk line with another short flex.

Instead of wasting money on the 6” trunk, buy another trashcan cyclone for the table saw and hook it up the same way.

GREAT IDEA——- THANKS——-GOING TO DO THIS SOON—-HATE EMPTYING BAGS———:)

View timbertailor's profile

timbertailor

1591 posts in 885 days


#7 posted 11-14-2014 05:43 PM



Your collector would probably be OK with a 6” trunk, but if you choke that down to 4” at the tool you won t gain anything in practical terms. Your flow will be limited to the 4” capacity and given that you are adding flex plus the separator, the air flow in the 6” may not be fast enough to keep the debris suspended (fall out and clog). You re moving maybe 400 CFM through the 4” (+/-), if that does what you want there s very little reason to change.

- Fred Hargis

I agree. I did not feel that such an under powered unit would be suitable for tying into a trunk system.

I have kept my system portable, use a short run hose, and only use it on one machine at a time. 400cfm is just not going to clear the trunk lines over time IMO. Lots of stories of people having to tear them apart, clean them, repeat.

-- Brad, Texas, https://www.youtube.com/user/tonkatoytruck/feed

View sawdustjunkie's profile

sawdustjunkie

343 posts in 1178 days


#8 posted 11-14-2014 06:44 PM

I have the HF dust collector as well. I have the Wynn filter and a Super Dust Deputy on a trash can which seems to work good. Not great, but good!.
I only have a 4” flex hose connected and only run 1 machine at a time. The flex hose is the 25’ one from Rockler and I can hook up the planer to it that is about 12’ away. With planer blower and the dust collector going, it works quite well. My band saw has a 4” port as well as the table saw. I never thought about going to a 6” main line.
I really don’t feel the HF could actually handle it.

-- Steve: Franklin, WI

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sawdustjunkie

343 posts in 1178 days


#9 posted 11-14-2014 07:46 PM

I have the HF dust collector as well. I have the Wynn filter and a Super Dust Deputy on a trash can which seems to work good. Not great, but good!.
I only have a 4” flex hose connected and only run 1 machine at a time. The flex hose is the 25’ one from Rockler and I can hook up the planer to it that is about 12’ away. With planer blower and the dust collector going, it works quite well. My band saw has a 4” port as well as the table saw. I never thought about going to a 6” main line.
I really don’t feel the HF could actually handle it.

-- Steve: Franklin, WI

View sawdustjunkie's profile

sawdustjunkie

343 posts in 1178 days


#10 posted 11-14-2014 07:47 PM

Sorry for the double post. I got sidetracked

-- Steve: Franklin, WI

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