Dust Collection

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multi 10 hp units vs one large dust collector

12/4/20       
Bob Stern Member

We are getting ready to put on 2nd production line. We will have two Rover A's with auto load and unload. We use a dedicated Nedderman S1000 (with dump bin) on the first one and it has worked great. Spoilboard gets very clean and the parts come off the conveyor very clean.
I have plenty of 460 power.

My question is should I just add another S1000 or should I look to add a larger single outdoor dust collector?

I have a dedicated Oneida 5hp dust collector for the edgebanders. The high vac works well with the pvc tails on the scrapers, so I don't think I will change that.

Only other large source of dust is a minemally used beam saw, a dovetailer and lots of sweeps.

Custom closet parts so we run mostly 3/4 Melamine on particle board core.

Any input would be appreciated.

12/6/20       #2: multi 10 hp units vs one large dust ...
Scott

Bob,
I think you are at the crossroads of pay now or pay later. I ultimately think a large unit outside for the whole shop is the best, once installed there is no mess in the shop, everything goes in a bin outside, someone else dumps the bin.

The drawback for the big unit outside is they are very expensive, unless you can find a good used one.

The smaller ones inside will do a great job, the Niederman collectors are a great product. The drawback for them is they donít hold a lot of product so you always have to empty them out, clean up around them afterwards, put the containers back in place, very labour intensive and messy compared to the other system. The initial setup cost will be less, but the labour every two weeks will be ongoing.

The other things to consider are space and heat loss. The footprint of the indoor collectors is quite a bit, if you have tons of space then no big deal.
The big units outside are designed to have the air return, but if you are in a climate where you are -20 Celsius or colder, the air going out through the system will be cooled some. The indoor collectors have zero heat loss.

All the best on your decision.

12/7/20       #3: multi 10 hp units vs one large dust ...
Bill

Scott's reply is on point, I agree with everything he said.

I would add that the outdoor unit is always on 100%. Indoor units are able to be selectively turned off if needed. They use more electricity.

You need to size an outdoor unit for the future. That uses more electricity.

An outdoor unit is expensive. We had three collectors before going to our outdoor unit. The outdoor unit is significantly more than twice as expensive.

An outdoor unit is safer.

Our suction is excellent, everywhere all the time.

We don't dump or clean anything related to the collector. We call and the dust is hauled away.

Air comes back in the building 15 degrees colder then it went out in MI.

Good luck.

12/7/20       #4: multi 10 hp units vs one large dust ...
Dylan Bayliss  Member

Website: http://www.machineconsult.com

indoor $2.50 per cfm
max indoor units 5000cfm per nfpa 664
outdoor closer to $7.00~$9 per cfm

12/8/20       #5: multi 10 hp units vs one large dust ...
Bill

Not knowing the setup of your shop I don't know if this is practical or possible.

If you put rotary air locks on what you have and ran a recirculating loop to a dumpster or hopper outside it would fix the biggest problem with indoor systems, dumping them.

12/8/20       #6: multi 10 hp units vs one large dust ...
Bob Stern Member

Thanks for the responses.

Dylan, thank for putting it into $$.

1. We have a enough room or 2 or 3 for now.

2. We use the S1000 dump bin and generally dumping 1.5 to 2 a day. Not that big of deal for now.

My conclusion is that we will go with another S1000 this time. Will be planning on a big upgrade with the next production line.

12/9/20       #7: multi 10 hp units vs one large dust ...
Scott

Bob,
How do you like the dump bins? How much are they, who sells these days.
My Niederman is over 10 years old so company I dealt with is no longer around.
One more thing, any idea on the cost?

I have quite a bit of ceiling room so I was thinking about raising the dust collector and fabricating my own dump bin with more capacity?

Bill,
How do those rotary air locks work exactly, that sounds like a really good idea?
Thanks

12/9/20       #8: multi 10 hp units vs one large dust ...
Bob Stern Member

Love the dump bins.

I think about $4500.
Well worth it.

You may want to contact Dylan at
http://www.machineconsult.com/

He helped me out with my duct work.
I think they are a Nedderman dealer.

12/9/20       #9: multi 10 hp units vs one large dust ...
Bill

A rotary airlock is like a revolving door. It allows dust to drop from the collector while not breaking suction.

From there you create a closed loop system. You need a fan and duct running under each collector. The duct also runs through a dumpster in one side of the front out the other. The dust drops out because of gravity. It is not an inexpensive thing to do but stops you from emptying collectors which has great value in my opinion. It may be impossible or at least difficult to do with multiple indoor units.

Oneida sells small rotary airlocks and transfer blowers.

https://www.oneida-air.com/dust-collectors/industrial-shops/7-5hp-dire
ct-drive-cyclone-dust-collector

If you are looking at Dantherm collectors also look at Belfab. They have a nice quiet machines with a unique dump system. I had one and was pleased with it.

Belfab collector

12/10/20       #10: multi 10 hp units vs one large dust ...
Scott

Bob,
I looked on line and saw a few pictures of the dump bin, I havenít found much detail on it yet.
I was just wondering how you dump it? Does the lid hinge? Thanks

12/10/20       #11: multi 10 hp units vs one large dust ...
Bill

The plastic of the hopper has a pivot point and flat for the forks of the forklift to sit. Quite ingenious really.

Belfab tilting hopper

12/10/20       #12: multi 10 hp units vs one large dust ...
Dylan Bayliss

Website: https://www.cnc-tool.com/cnc-dust-collectors.html#...

Scott please find link above some for additional info and videos
Call or email if you have any more questions
314-504-8098
Regards
Dylan

12/13/20       #13: multi 10 hp units vs one large dust ...
Hen Bob Member

I'm in the process of putting a rotary airlock under the collector for the cnc. the goal is to get away form the bags and to a dumping bin or cans. I got the airlock from W. Meyer very nice unit.

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