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baffling delta 50-850

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Forum topic by toolie posted 754 days ago 7358 views 24 times favorited 13 replies Add to Favorites Watch
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toolie

1739 posts in 1256 days


754 days ago

after reading several threads her and on other forums about improving the performance of single stage dust collectors, and reviewing the jet vortex and it’s apparent impact on performance, i wanted to try something to help my 50-850 breathe better. fashioning a thien baffle was my first thought as i’d used them in two 5 gallon preseparators and they worked very well. i also saw several posts where WWs used plastic flower pot trays, alad bowls, wok cover,etc. to achieve what they reported to be dramatic improvements in the performance of their DCs. and some were as s imple as a bowl, a metal strap and 2 screws. when i happened upon a large (16”diameter) discared frying pan, i decided to attempt a similar modification.

as a point of reference, here are pics of the DC and the canister filter after it was removed at the start of the modification:

here’s the pan and the same pan after the handles were removed and a bolt with a 1” spacer was placed in the center of the pan.

mounting the “baffle” (pan) in the DC was facilitated with a 1” wide piece of 1/8” thick steel stock bent in a vice so the ends matched the incline angles of the DC housing ring. the first pic is looking into the opening that receives the dust from the blower. the next 2 pics are of the DC after all the sawdust that was in the collector bag was collected again by the DC:

i was stunned by the performance of the DC after the “baffle” was installed. there was no dust on the top of the DC ring that holds the canister filter, and even the filter was cleaner than when it was initially removed for the modification. this video demonstrates the current airflow within the collector bag:

http://www.youtube.com/watch?v=l6KpAhEsrV0&feature=plcp

believe this is the kind of thing that’s supposed to happen when a baffle/cone/whatever is performing the way it’s supposed to. but i was really surprised by what i felt when i had completed the installation of the baffle and tested the DC’s operation without the canister just drawing in air. i could feel air almost being pulled down into the collector bag from above the collector ring. it’s probably what accounts for the significant reduction in the dust escaping up above the collector ring.

total cost of the enhancement was $6 for the metal mounting strap.

-- there's a solution to every problem.......you just have to be willing to find it.


13 replies so far

View MonteCristo's profile

MonteCristo

2094 posts in 816 days


#1 posted 753 days ago

Did your collector come stock with a pleated top fllter or did you add that ? I have Delta 1200 CFM collectors (model number is similar / same(?) as yours) and they use a top fabric bag. I wonder if your stategy would be as succesful with them ?

-- Dwight - "Free legal advice available - contact Dewey, Cheetam & Howe""

View toolie's profile

toolie

1739 posts in 1256 days


#2 posted 753 days ago

the canister filter (by jet) is an aftermarket addition to the 50-850. yes, the addition of the internal baffle works with bag filters also. the baffle just helps keep fine dust out of whatever filter medium a DC uses, thereby helping the DC brethe better resulting in better dust dollection.

-- there's a solution to every problem.......you just have to be willing to find it.

View amplifiednation's profile

amplifiednation

22 posts in 726 days


#3 posted 712 days ago

that is AWESOME. I already hit up the wife for a frying pan but i was denied… I bet if i buy her a new one…

-- Taylor Cox www.amplifiednation.com

View cstrang's profile

cstrang

1769 posts in 1795 days


#4 posted 701 days ago

Looks like its time for me to raid the kitchen! thanks for the tip.

-- A hammer dangling from a wall will bang and sound like work when the wind blows the right way.

View Ed's profile

Ed

28 posts in 702 days


#5 posted 701 days ago

Good job improving the unit.

It is amazing that the manufacturers don’t do a better job designing the units to do what they are supposed to do. If one sees dust in the air in their shop, the breathing air quality is obviously very unhealthy. If turning on a “dust collector” results in a visible “puff” of dust (like from inflating a bag or out of a cannister), then the unit is not a dust collector. It is a dust blower and a chip collector combo. Turnig off the dust blower and just using a broom would be a more healty approach for breathing air.

Lots of bag units are dust blowers. Converting them to pleted filters is a big step forward, if they don’t plug quickly.

-- Ed

View ellen35's profile

ellen35

2566 posts in 2060 days


#6 posted 693 days ago

Very interesting solution. I think you may have answered my question in another forum topic.
Thanks,
Ellen

-- "Don't let the perfect be the enemy of the good." Voltaire

View Roger's profile

Roger

14318 posts in 1431 days


#7 posted 693 days ago

Gr8, simple, and very affordable fantastic addition. Just another reason why LJ’s is so awesome. Tips like this sure helps on the financial end o this hobby.

-- Roger from KY. Work/Play/Travel Safe. Kentuk55@bellsouth.net

View HorizontalMike's profile

HorizontalMike

6923 posts in 1541 days


#8 posted 693 days ago

Just openly wondering/pondering how this would work with a 2-stage DC system (HF + Thien). I already get very little dust in the plastic bag, maybe an inch after 6-8 full cans of dust in the separator. Has anyone tried using BOTH modifications on a DC setup?

-- HorizontalMike -- "Woodpeckers understand..."

View toolie's profile

toolie

1739 posts in 1256 days


#9 posted 693 days ago

horizontalmike ….... according to phil thien, many WWs use both. some reserve the pre-separator for things like jointers and planers, which are chip heavy waste generators, and others leave both in place all the time. if i had the space for a pre separator, i’d just add a thien baffle based pre-separator to my set up.

-- there's a solution to every problem.......you just have to be willing to find it.

View HorizontalMike's profile

HorizontalMike

6923 posts in 1541 days


#10 posted 693 days ago

Yeah, I am not so convinced as to have both. After all, each separator/baffle does lower flow because of the increased friction, though that cost in friction is what actually separates the dust/chips from the air. I guess those of us with the marginally powered 2hp? HF DCs should pick one OR the other but NOT both, that is unless you choose to have a 3hp or greater DC unit.

Personally, I take the hit in convenience(lack there of) since I drag one hose around to the machine in use, each and every time. That assures me that I have enough suction for the task at hand. That said, one 10ft flex-hose reaches/serves my Jointer, TS, BS, router table extension, and router-based horizontal mortising machine. I use a 20ft section to reach my planer and my MS has a dedicated shopvac+Thien w/hepa. I do get tired of dragging the hose around, but do remind myself that this is my “hobby” and not my “livelyhood/job.” ;-)

-- HorizontalMike -- "Woodpeckers understand..."

View ducky911's profile

ducky911

208 posts in 1417 days


#11 posted 692 days ago

thanks so much for posting this…i am off to the dollar store for a frying pan…shoot i don’t care if I have to go buy one a macy’s….

View toolie's profile

toolie

1739 posts in 1256 days


#12 posted 692 days ago

ducky911 …..... remember, any bowl, pan or cone shaped item will perform the function. a thien shaped baffle will also work and, according to phil thiem, will work better than the pan.

-- there's a solution to every problem.......you just have to be willing to find it.

View Gshepherd's profile

Gshepherd

1465 posts in 829 days


#13 posted 666 days ago

Heck of an idea, good source for pans is your local goodwill….. I always hate to clean that fine dust out and not to mention the canister gets so dirty…..

-- What we do in life will Echo through Eternity........

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