dust ectraction

[Stevemk2]

i know this has been covered many times, how ever im looking for some advice on what to use in my small work shed
i mainly be for my lathe and band saw
but what would you recommend i go for a shop vac ( if so what make) or a dust/chip extractor like the record ones
im very limited on space and budget

your advice would be great

 

[LancsRick]

I'd go for a shop vac personally (sorry, can't recommend a make, created my own). Rationale being that your band saw will produce dust not chips, and for the most part on the lathe it's the dust you want to control, the shavings are easily tidied.

 

[DennisCA]

I would buy a used dust extractor, something in the 1.5 - 2.2kw range, stuff that looks like this, nothing less than 2hp is worth considering imo:
https://images-na.ssl-images-amazon.com ... 09125_.jpg

Basic simple units with induction motors, much better at catching dust than a shop vac. Especially for a lathe. You want volume or air moved to catch dust, suction to catch chips. A 2hp should be able todo both well enough.

 

[MattRoberts]

Unfortunately a shop vac isn't going to do much for a lathe or a bandsaw. Most bandsaws have at least a 2 inch extraction port, if not 4 inch. Lathes have no extraction port, so some sort of hood / shroud is needed. This results in large openings, which means you need to shift high volumes of air.

As Dennis suggests, an HVLP chip extractor is the way to go

 

[AJB Temple]

On my lathe I have dial extraction - a wide hood (used as a funnel) below, which catches quite a bit of the big stuff, and a moveable slit hood which pulls most of the dust away from the cutting / sanding area. Both are attached to 100mm hoses and blast gates, and air is pulled by a 3hp cyclone hvlp system (which has other machines attached to it as well). I also wear an air mask (as I get asthma). I find the funnel and hood approach works pretty well.

 

[woodpig]

I'd go for a shop vac personally, rationale being that your band saw will produce dust not chips, and for the most part on the lathe it's the dust you want to control, the shavings are easily tidied.

If you're short of space and on a tight budget I think this makes sense. I know several of the folks at my WT club use this method including myself. You can always add an air filter later if funds allow.

 

[stewart]

This is always an area of turning I've been unclear about. Don't the hvlp machines just let fine sanding dust back out into the workshop?

 

[DennisCA]

That's a filter issue and so a shopvac can be better or worse depending on the type of filter it has, or what the HLVP has.

 

[CHJ]

This is always an area of turning I've been unclear about. Don't the hvlp machines just let fine sanding dust back out into the workshop?

As has been mentioned due to the wide area needing to be covered for dust entrapment from a spinning lathe a HVLP chip extractor connected to a hood or wide area funnel is the way to go to most easily remove it from source, unfortunately most lower priced units have coarse filters to enable least restriction of the mas airflow which do just recirculate the finest dust, larger more powerful units can be fitted with finer filtration capability but these are then more expensive and can take up a larger volume of workshop real-estate.

I personally have modified my budget extractor with an even coarser filter than normal and positioned it outside the shop and dump all the very finest dust to the outside atmosphere.

Excessive heat loss in winter is reduced by judicious use of open window to provide air inlet path that does not draw too much heat from main shed volume, and enhances airflow/dust path away from me as operator.

I also have a 9" expelair wall extractor that does likewise with shop air, automatic in warmer weather and can be overridden manually any time of the year it is deemed necessary due to fumes or rogue dust.

 

[stewart]

Thanks for the clarification. I think I'll have to get a closer look at this type of extractor. I've got a record dx5000 which is very powerful but struggles with picking up a lot from the lathe.

 

[Keithie]

I'm waiting for a good quiet hvlp to becomeavailable cheaply (secomd hand, nearby)

In the meantime I use a 3 speed desk fan to blow fine dust away from me at the lathe and a henry hoover to try and collect it rather than it just lingering in the aie. Not great but ok-ish in the interim. I also wear a 3m full face visor with p3 filters due to asthma.