Dewalt DW735 dust collection question

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Forum topic by jtm posted 03-09-2015 05:16 AM 879 views 0 times favorited 3 replies Add to Favorites Watch
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219 posts in 1141 days

03-09-2015 05:16 AM

Hi all,

I have a question/problem with my DW735 dust collection. I’ve researched this quite a bit, but I wanted to toss this out there for opinions.

Right now, my DW735 is connected to a 4” PVC piped system. The length from the planer to the 2HP Grizzly dust collector is only about 12 feet. If you look at the picture, you’ll see that I only have a foot or so of flex hose between the planer and the PVC, with a metal blast gate in between.

Now, when I plane a board, the chip extractor is so strong on the DW735 that it literally expands the flex hose and forces small dust through the open slit on the blast gate (I have duct tape over it in the picture). I know tons of people have their 735’s hooked up to dust collection, so I’m curious if any of you have this problem.

For the record, I plan on doing two things:

First, the blades are probably due to be changed. I’ve run a decent amount of wood through it, so maybe they are too dull, causing more fine dust than chips.

Second, I plan on replacing the dust collector bag, as it’s definitely getting full. Maybe that will increase suction, as the last time I let it get too full, it literally blew the filter right off.

3 replies so far

View TimberMagic's profile


114 posts in 684 days

#1 posted 03-09-2015 05:57 AM

I have same planer, but has about 12 feet of flex to my Laguna 2HP DC. I have not plumbed my basement shop yet, I just use Rockler’s DustRight quick ports on my tools, and move the hose around as needed. I have not noticed any issues with expansion of flex hose, but it may be that since I am using a long run of it, it just better absorbs the pressures.

I can relate to the force from the chip extractor. The first time I used the planer, I used the included long, slender “nozzle” that came with the planer. I’ll bet I still have some chips hiding in corners of my shop 5 years later. I’m not really sure of the value of that device!

-- Lee

View Fred Hargis's profile

Fred Hargis

4050 posts in 1998 days

#2 posted 03-09-2015 11:22 AM

You might want to check your filter as well, if it has clogged a little that can really decrease air flow. Personally I wouldn’t rely on that flapper to clean it, or at least verify it does clean it. Use it and then dismount the filter and have a look.

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

View OSU55's profile


1099 posts in 1494 days

#3 posted 03-09-2015 12:14 PM

Have the same planer and use a 10’ 4” flex hose connected to a HF DC. The flex hose jumps quite a bit when the planer is turned on. The blower in the 735 is very strong. Not sure you will completely eliminate leakage around the blast gate. Perhaps there is a better designed blast gate that seals better. One option is to disconnect the 735’s blower motor internally so it doesn’t run and let your DC do it all. If the wires can be pulled off terminals or unplugged, it would be very simple to reverse.

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