Thread: tricky dust extractor upgrade

7m of 100mm flexy outlet, plus a generic cyclone, on a 3HP DC will equate to stuff all flow.

The flow rate will be so low that the cyclone won't be working properly to separate enough fines.

Those small cyclone collection bins also have bugger all room in them and once they get more than about 2/3rd full the cyclone also won't work properly so this will spew out out into your yard.

But, replacing the 7m with 150mm smooth wall PVC won't make a lot of difference because the generic cyclone on the 3HP will remain a flow constrictor.

Also looking at the photo of your machine connection it looks like you reduce the 150mm down to 100 mm collection
The dust collection ports on machinery must be opened up to 150mm.
Read the ducting FAQ in the sticky thread at the top of this forum.

With such a low ceiling height, about your only choice is a twin pleated filter bag setup with shallower collection bags.
You will have to replace that 7m of 100mm flex with 150 mm smooth wall PVC
Empty the collection bags and clean the filters often.

Consider getting a 3 phase unit and run it on a VFD so's it can be spun @ 60Hz.for 20% more IR FLOW

Check this out.
CV Cyclone Low Ceiling Installation

If you want to vent outside really you don't have many decent options without annoying the neighbours unfortunately.

The alternative is to house the unit entirely in the room you have with some filter bags and clean them regularly.

Is the diagram showing a 150 mm pipe being split into two 100mm pipes going to the same machine ie. upper and lower ports - much the same as I see on bandsaws or are they going to different machines? If it’s the former, is there anything wrong with that?

Originally Posted by Lappa

Is the diagram showing a 150 mm pipe being split into two 100mm pipes going to the same machine ie. upper and lower ports - much the same as I see on bandsaws or are they going to different machines? If it’s the former, is there anything wrong with that?

Good point - it Depends on the machine - its OK for a BS but not really for a aTS.

Originally Posted by hurcorh

Check this out.
CV Cyclone Low Ceiling Installation

If you want to vent outside really you don't have many decent options without annoying the neighbours unfortunately. .

You could put some HEPA filters onto the outlet.

eg See the
Wynn Flangeless Nano Filter on this page Accessories and Spare Parts | Clearvueoz.com.au

Thanks for the answers. the reason i have the machines still haven't been altered to a 6" outlet is because i think i will upgrade them when i get the additional floorspace. And i don't want to mod them before i sell them. I have read alot of the sticky posts, so i know that there is always a journey to achieving good dust extraction. I have seen you recommend Felders dust extractors before. So would you recommend something like a Felder RL 160 or would i get better bang for buck with a unit more like a AF22. Thanks BobL

Hurcorh - I have seen this post and actually talked to clearvue about it. And as BOBL has mentioned in the thread it does loose a fair bit of power, so i have decided to stay away from that idea.

Lappa - the setup is for 2 seperate machines. The only 2 that i haven't yet made into a 6" port. My sawstop and my 18/36 drum sander.

Thanks again for the help

Originally Posted by BobL

You could put some HEPA filters onto the outlet.

eg See the
Wynn Flangeless Nano Filter on this page Accessories and Spare Parts | Clearvueoz.com.au

Sorry I was referring to venting with current or similar setups where there would still be a reasonable amount of dust being vented due to inefficient separation.
Sure but if the system doesn't efficiently separate the dust they'd block up in no time at all. Plus, they are $875 each, not exactly cheap.

If i follow the CV max dimensions from the website there will be a total of 1590mm with this variation. That leaves me 440mm to put a bin. Will that be sufficient or will that bring about the same issue i have with no flow? And with the costs of the pleated filters and this modified set up, is there any other recommendations that would better suit my individual situation. How else would you recommend linking up the 2 machines there? i feel like i am missing something. haha. Thanks again guys

I've seen a few people who have used this that seem happy with it. Harvey Gyro Dust Filter Extractor - Bigger Boyz Toyz

Dimensions listed as 1430 wide x579 deep x858mm high

The Harvey unit does look good. I'm just not sure about the power of the unit and also how small the dust bags are. Both are a little worrying. Especially for that price point. I can't find many independent reviews on YouTube either. Everyone who has reviewed it is sponsored by them. I will search the forums tonight for reviews.

Side note there is a felder ro160 for 5k second hand that is looking pretty nice.

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Originally Posted by Storm2point0

The Harvey unit does look good. I'm just not sure about the power of the unit and also how small the dust bags are. Both are a little worrying. Especially for that price point. I can't find many independent reviews on YouTube either. Everyone who has reviewed it is sponsored by them. I will search the forums tonight for reviews.

Side note there is a felder ro160 for 5k second hand that is looking pretty nice.

You tube "the medium for those wishing to reinforce already held views" - if you don't like a review keep looking and you'll eventually find one you like .

A friend of mine has a Felder 160 inside his 140m^2 carpentry workshop factory unit located right next to his rear roller door.
We had my particle counters running there for a week in that factory and the particle counts inside teh workshop never got anywhere near any OHS levels.

Several major mitigating factors are;
- he buys most of his hardwood stock already approx cut to width and docks to length with a small drop saw
- 14" Sliding panel saw is used mainly for sheet stock like ply
- 12" Hammer thicknesses used occasionally to dress stuff like boards for table tops to the same size
- Workshop has two almost full length roller doors at the front and back of the unit.
- Dusty work like ROS is performed near the rear door where prevailing winds exit the workshop.

Yes it seems odd that it requires a 20A breaker with something like a 5.6A current draw listed on the specs and I do agree the small collection bins are worrying for me, too.

Will the RL160 fit into that room? Dimensions on the website listed as 1775x898x2005mm

Yeah I think I will stay away from the g700. After more research I don't think it will fit my needs.

And the felder rl160 is the older model so it is much smaller. I have contacted felder and got the dimensions. 171cm(H) with baffle 184cm(H) x 78cm(W) x 160cm(L) So it will be a simple fit without any stuffing around.

I have read a fair bit about modifying a Clearvue to fit too. So that is the only other option. I have contacted Stephen from Clearvue and spoke to him briefly today about it. He said that he has seen a few installs in confined heights and said it shouldn't be a problem. He suggested making a flatter, square bin from plywood and then I wouldn't need any adjustments at all. He has a pdf to send me to review my options.

I might call him back and get a quote too.

I'm on the fence with what way to go. The plug and play with the felder is appealing, but it's a 13 year old machine. And the customisation of the Clearvue is great and it seems to have the best reputation for small hobby shops. But running it in a less optimised configuration is a worry too.

Too many decisions. Haha. I appreciate everyone's input.

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Another factor is probably timeline. You are right that felder machine is getting on a bit, maybe you could get it for a better price because of that but available right now. Clearvue orders are taking some time currently. I ordered at the end of May, haven't heard anything about when it may be arriving.