Which vacuum cleaner (Karcher MV2?)

[d4cnc]

I was just about to post if something like your second link would be more like what I'd need Draper 10923 but the reviews state, as you have, that they're extremely noisy.
So a Henry is the way to go? Do you keep it on your cnc machine for hours at a time? The one you linked is a 580W whereas the noisy one linked is double that. Is that not an issue in reality?

EDIT: Ah there's also a Henry with 2 switchable speeds.. 1200W & 600W. Is that the one you use and recommend?

[routercnc]

QUOTE[I was just about to post if something like your second link would be more like what I'd need Draper 10923 but the reviews state, as you have, that they're extremely noisy.
So a Henry is the way to go? Do you keep it on your cnc machine for hours at a time? The one you linked is a 580W whereas the noisy one linked is double that. Is that not an issue in reality?

EDIT: Ah there's also a Henry with 2 switchable speeds.. 1200W & 600W. Is that the one you use and recommend?]

OK, managed to check the spec of my Henry and it is 580W non-switchable. But suction is not a problem. Be careful of just looking at wattage to determine how well it might work as this is just electrical input - I do know that the motor type is different to the cheap can type, and it certainly is much quieter.

I have run it for extended periods (at least an hour) following the cutter around, and didn't notice heat etc. but now that my dust shoe is finished and working I use a proper extractor. I then use the Henry to generally tidy up. Must post a video / pics on that when I have a moment.

I haven't used the 1200/600 version so can't comment but I'd be fine recommending the 580W version. When I was looking at all this ages ago there was some ruling coming in about maximum power allowed in future vacuum cleaner models (to save energy) so this could be something to do with the 580W version - but please check this before deciding.

[d4cnc]

I wonder also if I can't improve the chip removal a lot, by using 2 nozzles blowing air. Therefore I could get away with a less powerful air pump? That coupled with the dust hood and vacuum sucking air.. do you think this setup could give a good enough chip removal on aluminium?


What I'm not understanding is the power of the pump I'll need and if I need a tank system or not. And how big a tank. Is it a case of trial & error or are there some rules of thumb/formulas I can plan in advance?
I can just about fit everything in if I use the Wickes vac (assuming it has the same dimesnions as its dearer model. and the 6l tank shown above..


(the two nozzle system I see working well here..


PS. the hood system I'm thinking or this one

[cropwell]

I can just about fit everything in if I use the Wickes vac (assuming it has the same dimesnions as its dearer model. and the 6l tank shown above..

The Wickes 1250W vac sits in a 32x32cm square 43cm high if you do not have the castors and handle fitted.

[cropwell]

QUOTE[ When I was looking at all this ages ago there was some ruling coming in about maximum power allowed in future vacuum cleaner models (to save energy) so this could be something to do with the 580W version - but please check this before deciding.

The EU ruling that came into effect in August 2014 limited the power to 1600W. There is a proposal to limit noise output to 80db by 2017. That would really f**k up a lot of manufacturers !