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Poor dust/chip collection on joiner

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Forum topic by mandatory66 posted 11-28-2015 07:16 PM 612 views 0 times favorited 8 replies Add to Favorites Watch
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mandatory66

201 posts in 1597 days


11-28-2015 07:16 PM

Topic tags/keywords: jointer chips

I have a Powermatic 54A 6” joiner and I installed a Byrd spiral cutter head on it. The head runs & cuts fine but I have noticed a significant change in chip collection for the worse. I have a 1.5 JDS 4 inch vac hooked up to it with nothing else but the joiner on it. Chips come out of the back of the cutter head(toward the fence side) and I get chips in the motor housing area. I always got some chips in these area but much more now. If I was to guess about 75% go to the Vac & the other 25% gets spilled on the floor. I was wondering if anyone else has experienced this & had a fix for it.


8 replies so far

View Fred Hargis's profile

Fred Hargis

3947 posts in 1959 days


#1 posted 11-29-2015 12:28 PM

I have no experience with that jointer, but I have a Jet 8” and when I converted it I didn’t see any change in the collection. I’ll hazard a guess, and that’s all it is. The chips from a spiral head are smaller than the ones from knives, each cutter is throwing it’s own little chip, as opposed to one the can be up to 6” long. The smaller the chip, the more air flow it’s takes to catch it…the smaller ones can escape the air stream more easily. So here’s my guess: while you may have had enough air flow to catch the larger chips, it’s lacking once you started throwing the smaller ones. It sounds like you have a 1.5 HP (?) JDS collector, running a 4” line to the port? I would think that would catch the chips, but there may be some circumstance that’s otherwise reduced your airflow. Regardless, I think the will be the solution to your problem: increased airflow. There may be something you can do inside the jointer cabinet to redirect (not choke down) where the air is moving that may help.

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

View rwe2156's profile

rwe2156

2198 posts in 947 days


#2 posted 11-29-2015 01:18 PM

Same here ^. Might be smaller chips and not being picked up as well. I probably wouldn’t worry about it.

-- Everything is a prototype thats why its one of a kind!!

View toddbeaulieu's profile

toddbeaulieu

781 posts in 2470 days


#3 posted 11-29-2015 01:25 PM

Personally I think that’s not enough DC. I have a 2HP and have a lot of problems with my 8”. I am about to do a lay away on the ClearVue 5HP. Yeah, you might have gotten away with it before the new head, but I just think you were at bare minimum in the first place. I could be wrong.

View mandatory66's profile

mandatory66

201 posts in 1597 days


#4 posted 11-29-2015 07:35 PM

I did some testing to try and determine how much suction I had at the cutter head. I turned on the Vac and took a kleenex tissue and laid it across the cutter & cutter opening. I was surprised to find the the tissue was sucked down only about 1/8 inch. Not very much suction at the cutter. Also found the there are open areas in the dust shute leading to the hose. These open areas are on the side of the shute and are quite large.I believe these open areas are the main source for the poor collection. When you open the back door of the motor area these are not visible,you have to place your head in the motor area & look up to see the open areas in the chute. Seems like a poor design.
I will try to close off the openings,I am sure this will solve the issue.

View SawSucker's profile

SawSucker

110 posts in 395 days


#5 posted 11-29-2015 08:01 PM

It always helps people see everything more clearly if you have pictures, you don’t say how your dust collector is setup. Is it a ducted system ? or just a single hose to the DC ? Without seeing and knowing everything it just becomes an unnecessary guessing game for everyone else. Remember, don’t close the jointer up too much, the DC needs air, otherwise you can suffocate it.

View mandatory66's profile

mandatory66

201 posts in 1597 days


#6 posted 11-29-2015 09:47 PM

I was able to close one side of the dust shute which was a right triangle with a hypotenuse of 11 inches. There is another opening on the other side of the shute which would require removing the beds from the stand to get at it.
I ran the joiner and there was some improvement but I will leave it for now as I am not going through another set-up on the beds.
Saw sucker,
You are correct pix’s would help, the vac is hooked up to the joiner direct with 10ft of 4 inch hose. I can hear the air being drawn through the cutter head now that one side has been closed. Still am getting chips from the back side of the cutter(fence side) but not as much.I think if I closed 1/2 of the other side it would do the trick. But that is for somewhere down the road. For now I will take the improvement and live with it. Thanks to all

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rwe2156

2198 posts in 947 days


#7 posted 11-30-2015 01:40 AM

I wouldn’t expect much suction at the cutterhead because of air loss around the base. If you check your machine you may find quite a few gaps. Most jointer dust collection (at least my machine) works by directing the chips down toward the port by means of a baffle which are then picked up by the DC.

It might be worth it to take a minute and see if there isn’t an obstruction of some sort.

You said you have a JDS vac. Is this like a shop vac or is it an actual dust collector?

I am running a 1.5HP Jet DC with a small cyclone and 6” ducts. The run to the jointer is about 12 feet I’ve never had a problem even though I think my blower is undersized.

I think you just don’t have enough CFM’s.

-- Everything is a prototype thats why its one of a kind!!

View mandatory66's profile

mandatory66

201 posts in 1597 days


#8 posted 11-30-2015 05:33 AM

rwe2156, I am running a 1.5 hp Vac very similar to your Jet.( if not a clone of your collector) There is huge suction at the end of the 10ft 4 inch hose and the are no obstructions anywhere. I have concluded that the duct in the joiner is just a poor design.I was hoping another owner of a 54A who had a similar issue might help with a fix. For now I will line with my limited fix.

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