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Air lift coolant system

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John Hill:


I need to add coolant to my chop saw  (which has a steel blade, not abrasive) and I thought maybe this scheme would do the trick?  All parts are plastic bits from the hardware plumbing section.

The theory is that air bleeding into the bottom of the column causes a column of aerated coolant which is lighter than coolant alone and hence rises and eventually flows to the work. 

bogstandard:
John,

A very inovative idea, but I think maybe a bit cumbersome for the job in hand.

I can just imagine a bit of over pressure and you will be painting the ceiling with coolant.

But well worth a try if you think it might work efficiently enough.

I am just looking at these units and my mate has just brought me one back from the States. I hope to have it in my hands by next week. If it works well, I will strip it down and see how it is made. I reckon it could be used as an almost total loss system if it will turn down low enough. I am hoping to use them on all my machines, including my power hacksaw. Then when finished cutting, just mop up the tiny amount of coolant it has used.

http://littlemachineshop.com/products/product_view.php?ProductID=2725&category=

John

John Hill:
John, I am beginning to wonder if the vent pipe is required.  Without it the output would be a bit 'spluttery' but maybe thats OK.

I agree it is cumbersome in that the resevoir needs to be deep (at least I think it does) but I didnt have anything too fancy in mind, just 4" plastic drain pipe.  Though I have shown nice straight pipe for the up tube of course just garden hose poked to the bottom of the resevoir would do just as well, it just needs a little fitting to somehow inject a bit of shop air at the bottom of the output tube.

I will be looking forward to your opinion on the mist modules.

sbwhart:
John H

One way to rig up a cheep coolant system is to use gravity, just hang a bottle of coolant up and lead a pipe from it to the job, your just using mother earths free energy.  :thumbup:

John B

Like the air mist we use that system to drill millions of holes a week at work.

Have fun
 :wave:
Stew

John Hill:
Yes Stew, I could use gravity, I could even just put the stuff in a spray bottle and give it a few squirts while the work is being done but where is the fun in that eh? :beer:

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