Dust Collection

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Upgrading existing dustcollector

12/22/17       
correy Member

Hi guys, I have a blower that has room in the housing for a larger impeller. I was considering increasing the motor one size up and the impeller as well. If it fits is it plausible? Is there a need for extra room in the housing around the impeller?
Thanks for any insight on this.

12/22/17       #2: Upgrading existing dustcollector ...
Bill

A collector can only take in what it can exhaust through the filters. Rarely so systems have too much filter. Are you going to increase the filter area.

12/23/17       #3: Upgrading existing dustcollector ...
Correy

Hi, yes, adding 60% filter area.
I have to admit I'm trying to turn a 3hp powermatic pm1800 into a 5hp.
Belive it or not it's been doing admirably in my 1200 Sq ft shop. But the planer could use a little more draw, getting some chip prints on the surfaces.
Bill pentz's design used a 5hp motor with 16 inch impeller. Pm1800 has 14". Housing is 18" maybe larger, can't remember right now.... would you think you need 2" around impeller for it to work right or 1" ok?
Currently have 6" duct. Thinking of upgrading mains to 8", max inlet DC.
Also the collector is a floor model twin bag collector, so I intend to remove motor and housing to invert and elevate to same elevation as main , about 11'. Then make a plywood box tube from it down to the newly inverted wye that splits to the two bags.
Currently my main turns down from the 11', then has to turn in to blower. I could eliminate two turns, the worst is the one directly into blower.
Seems like a monkey f@#%, but I really like this particular model with the snap rings on the collection bags. I cut off the canvas bags and use the snap rings with 3mil contractor bags, super easy for swapping out. Then the cost of a new 5hp with shipping to hawaii, it's cheaper to beef up what's here. Then no snap rings on the 5hp.
Don't want to empty cans, the bags are by far too efficient. Sometimes 30 bags one day, rarely but maybe 3 times a year. Also never had to dispose of them, set them outside, gone in 30 minutes. Too easy.
Can get Leeson motor and 16" impeller for about $600.better than $1500.

12/26/17       #4: Upgrading existing dustcollector ...
Bill

Sorry Correy I can’t help with that.

Good luck.

1/6/18       #5: Upgrading existing dustcollector ...
rich c.

It would certainly pay to stop guessing what will work and do some calculations. You need to calculate based on distance and number of elbows and flex. Plenty of places will help you design the piping and air flow requirements.


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