Axminster WV2000P

[Rknott2007]

Does anybody own an axminster wv2000p i already own an axminster wv100 but seeing as i just brought a planer thicknesser i need greater air flow and bag capacity. Can anyone recommend this extractor? i have a small plumbed in system already, hooked up to a table saw, router table and a power tool hose, all with blast gates.

And does decreasing the diameter of pipe on the extractor increase its suction? e.g would a 195m air flow on a 4'' pipe be increased if using a 2 1/2'' pipe?

 

[mpooley]

Well I cant comment on the extractor but as someone who is in the process of buying a cyclone from the USA and having read Bill Pentz's website till my brains started to boil.
The one thig a can say is NO the airflow will decrease dramatically.
Well thats what he says!


Mike :shock:

 

[jonny boy]

I think that the extractor you are talking about is a fine dust one as opposed to an induction motor run chippings extractor, in which case there will be no problem reducing the diameter down to 2 1/2 inch. I have a record DX 4000 which is the same sort of thing and can use 100mm right down to 32mm vacuum hose, with super suction with either. The use of a chippings extractor though, will reduce in suction if using smaller hoses than the standard 4 inch dia.

cheers,
jon.

 

[mpooley]

I think that the extractor you are talking about is a fine dust one as opposed to an induction motor run chippings extractor, in which case there will be no problem reducing the diameter down to 2 1/2 inch. I have a record DX 4000 which is the same sort of thing and can use 100mm right down to 32mm vacuum hose, with super suction with either. The use of a chippings extractor though, will reduce in suction if using smaller hoses than the standard 4 inch dia.

cheers,
jon.

Yes you are right about it being a fine dust extractor and i know from my own expereince that it will be fine on a smaller pipe but if Bill is right then air is air whatever extractor you use and HE says that at those pressures it doesnt compress therefore it doesnt speed up.

Now i dont understand the physics i;m just going on his word
but one thing i do know is not to try to pick up any amount of largish chippings with a pipe any smaller than 100mm cos you will be blocked up most of the time.

Mike

 

[Harbo]

I had to change my 2.5" Camvac system to a 100mm piped Record DX5000 when using my P/T. The smaller pipes cannot cope with the shavings.
I also use an Axminster double holed lid ontop of a dustbin as the first collection stage but it only works well with both extractor motors running to get enough suck - it saves a lot of time though not having to empty the bags as often - only the very fine stuff reaches the bag!

Rod

 

[Rknott2007]

I have used the axminster lid, and have found that it has a dramatic loss of suction, with the wv2000p I thought i could use the 4in hose for the planer and keep my 2 1/2 in for router table/table saw. I have looked at the induction type and they all seem to have an NVR switch, and seeing as my extractor is housed in a lean to at the back of my garage would need a 'rocker' style switch as i have a remote control to switch it on.

I also find the axminster lid hard to empty into sacks if i put a bag into the dust bin it just sucks up onto itself :x , with the mentioned extractor it would be already bagged up for me, i know i know i'm well lazy.

 

[jonny boy]

Using a hose dia. less than 4 inch for any chippings producing machine is without doubt a no no. It's obviously going to get blocked and is the reason why theese type of machines have the 4 inch outlet. Even a 4 inch pipe can be too small sometimes, especially in an industrial situation on spindle moulders.
jon.

 

[mpooley]

Here is a very succinct quote from Bill Pentz site

Measure the inside diameter of the ducting to your larger machines. If it is not at least 6" all the way to those machines the best you can hope to do is get the same sawdust that you would get with a broom. Small pipe will not support the air volume at typical blower pressures needed to get all the fine dust at the source.

which makes most hobbyist woodworkers systems not up to the job!
assuming that you would like something more than a chip collector that is.
I used to be happy with that until i started to get sore throats all the time and realised it was the very fine dust that was settling over my workshop that was doing it.


Mike

 

[Jake]

The thing about Pentz is that everything he says is predicated on high volume low pressure extractors of the chip collector variety. Nothing wrong with that, but you cannot extrapolate any of it directly to high pressure low volume systems like the record extractors, precisely because Pentz's calculations are based on the effects on air flow in low pressure systems. High pressure systems (which he doesn't consider at all) will be affected by things like duct size much, much, much, less.

Nothing wrong with Pentz (that I know of), but you can't just take what he says about HVLP and apply it willy-nilly to LVHP - it doesn't work like that, which is why power tool extractors (with their tiny tiny ducts) are without exception LVHP.

 

[mpooley]

yeah i think i understand that but do the Lvhp systems pick up the fine dust?
i'm assuming that Bill doesnt mention them cos they dont or at least not enough but i could be totally wrong
mike

 

[davy_owen_88]

Jake, the thing you must realise is, HPLV systems just don't move enough air to capture the fine dust at the source even when they are working at their best. The only benefit of a high pressure system is you can use smaller ducting without the massive losses of a LP system, but if there isn't enough airflow to capture the dust in the first place what is the point?

 

[Jake]

Yes, they pick up fine dust, and can force air through fine filters with much less loss of performance than HVLP can (it's the other side of the same coin) so in fact they do so very well.

But there's a ceiling on how much air they can shift, and ultimately they can't match a big hvlp extractor through big ducting, and wouldn't make Bill Pentz's ideal. How far they can match a more compromised hobby hvlp/cyclone system through 4" ducting and little ports - who knows, but a much better chance.

 

[jonny boy]

At work, we have a six bag HVLP extractor unit which measures about 20 feet long by 10feet high and is powered by 7 1/2 horse power motor. The ducting is 12 inch from this running down to 10 then 6 inch on the machinery outlets. The suction that it creates is scary and will even suck spanners down if they're too near and even still, the workshop gets covered in fine dust on a daily basis, so what hope has a home woodworker got of eliminating dust totally. I gave up a long time ago and now just use a record DX4000 for fine stuff and a 2 hp hvlp for the planers. The trick is to get the sawdust at the point of production and a face mask will do the rest.

cheers,
jon