Q re dust extractors

[YorkieT]

After a few years of using a wet n dry vacuum I have decided to buy myself a dust extractor but I want something as quiet as possible :shock: I know that quiet and dust extractor do not go hand in hand but what is the quietest available for under £200.

I have looked at various tool sites etc and a decibel rating is seldom mentioned :roll:

YorkieT

 

[richburrow]

Hello there

I have got this one http://www.dm-tools.co.uk/product.php/section/4559/sn/SCHHA2000
in my workshop in Gloucester. 90% of the time it is used for the planer but when I get more time down there I am working on a diy attachment head for the lathe.
It is not really noisy and its not quiet, its some where in the middle. Much quieter than those metal drum ones, we have got two at work and they make a right racket.
It does pump out some valuable warm air :lol:

 

[YorkieT]

Cheers Rich, I am in need of something a little smaller IF possible?

I will stick it on my list of units to check out though :wink:

 

[CHJ]

Hi YorkieT,

One or two comments I would make about extractors and lathes, they will never capture anything but a small percentage of the turnings, they will though if you get enough air flow and can position the dust cowl in the right place remove 90% + of the fine dust.

Volume of air movement is what you need because of the wide area that dust gets flung by the spinning chuck and wood, but very few of the lower end units will provide a good volume and adequate fine filtering suitable for positioning in the shop and adding effective noise reduction too something this low powered just about stops them in their tracks.

I have overcome this limitation by fitting my lower powered extractor outside of the shop and replacing the supplied filters with a large open weave polycotton cloth bag, this has quadrupled the air flow at least and now I could almost get away without wearing my mask when sanding.

This is of course at the expense of shop air being extracted but I minimise the heat loss considerably by having an adjacent window vent open to provide the airflow.

 

[YorkieT]

Hi YorkieT,

One or two comments I would make about extractors and lathes, they will never capture anything but a small percentage of the turnings, they will though if you get enough air flow and can position the dust cowl in the right place remove 90% + of the fine dust.

Volume of air movement is what you need because of the wide area that dust gets flung by the spinning chuck and wood, but very few of the lower end units will provide a good volume and adequate fine filtering suitable for positioning in the shop and adding effective noise reduction too something this low powered just about stops them in their tracks.

I have overcome this limitation by fitting my lower powered extractor outside of the shop and replacing the supplied filters with a large open weave polycotton cloth bag, this has quadrupled the air flow at least and now I could almost get away without wearing my mask when sanding.

This is of course at the expense of shop air being extracted but I minimise the heat loss considerably by having an adjacent window vent open to provide the airflow.

Hi CHJ,

Thanks for the reply

It is purely the fine dust that I want to try and capture, I am not concerned with chippings etc.

I do have another small shed but it is 4ft away from my workshop so I am not sure if I could site my extractor in there due to the length of pipe that I need / loss of suction etc!

What length of pipe could I have before suction is reduced?

It would certainly be a better idea re noise / space

 

[CHJ]

Obviously the longer the pipe the more flow restriction but as long as you can (or your neighbors) live with the more Harmful dust being discharged in or out of your other shed then I would say the extra hose length would be an acceptable price to pay and more than outweighed by the greater airflow from a coarse filter bag.

My vents are at ground level and although visitors are warned not to stand in front of the vents I have yet to notice significant airborne dust, most of the very fine stuff seems to be collected by static charge on the machine and inside of the shed.

You could always use 6" plastic drain pipe between sheds to reduce restriction.

 

[YorkieT]

Obviously the longer the pipe the more flow restriction but as long as you can (or your neighbors) live with the more Harmful dust being discharged in or out of your other shed then I would say the extra hose length would be an acceptable price to pay and more than outweighed by the greater airflow from a coarse filter bag.

My vents are at ground level and although visitors are warned not to stand in front of the vents I have yet to notice significant airborne dust, most of the very fine stuff seems to be collected by static charge on the machine and inside of the shed.

You could always use 6" plastic drain pipe between sheds to reduce restriction.

I will give it a go as soon as the weather improves CHJ I think I will box in the area between the 2 sheds to make a purpose built extraction area :wink:

Thanks for the info

 

[boysie39]

Chas, what wouldbe the distance from your point of collection to where you have your extractor situated,Approx. I have one of thr Record RX5000 extractors and while it's very powerful it's also very noisey and I'm toying with the idea of moveing it about 5ft to outside the shed.This would be about 8ft to the Chuck, that should be ok do you think? It's just for the dust,I have an Earlex hoover for the chippings. Regards Boysie.

 

[CHJ]

Chas, what wouldbe the distance from your point of collection to where you have your extractor situated,Approx.

The extractor in the above reference is the other side of this wall.

It will pick up a 2" cube of wood no problem, when the fine filter bags were fitted the box trapped all shavings but with the increased flow it traps about 30% but still catches the odd sanding sheet or polishing cloth if I forget to put a mesh grill on the pipe or vac up something accidentally such as a pencil or brush from the floor or bench.