Thread: flood cooling

i recently pruchased one of them blue magnetic flexible flood cooling nozzle
it is attached to a 5 litre garden pressure spray
whilst it works fine my previous experiments using the sprayers original jet which is much finer but more pressure seemed to work ok.the larger jet has very little pressure but more a flooding effect BUT the 5 litres runs through very quick
the finer jet+more pressure lasts longer but maybe its not doing its job correctly
any comments appreciated
john

I would use the bigger nozzle.

Put a Tap on the larger nozzle if it dosent allready have one.

Buy your self a 15/30 ltr plastic container and a pond pump that has a head height of between 750/1500mm depending on where the pump is located in respect to your outlet.

On a reasonable sized job whether Lathe or Mill 5ltrs is not going to last long.

Pipeclay is right, I also would setup a pump. There only about 10-15 dollars new from the markets or a fish place. Your 5ltrs may last all day then, as long as none ex capes onto the floor, which it usually does.
I will pass on some info I have heard on the internet, that it is not good if you don't have enough coolant running over your cutter keeping it cool. If you allow it to get really hot, then when the coolant hits it, you can get micro cracks on the cutting edge. Just like when grinding lathe tools.
Dave

I dislike flood cooling for the risk of rust on a seldom used machine...

Soluble oil goes off over time and neat oil does not provide any real cooling benefits...

Most of my machines have sud pumps but the sump on them all is dry...

If its a seldom used machine ,just clean the coolant off when you have finished.

Cant say in all my years machining that I have ever seen rust caused by solubile oil,seen some staining but not rust.

Cheapest way to stop a lot of coolant getting away from the mill table or lathe is to make some guards up ,out of the plastic stuff they print signs on,Forsale signs work for me.
It light easy to shape and usually easy to find.

my new set of er32 coletts n chuck arrived tonight i have a blue barrel witha screw on lid will be just the ducks gu*&^%tz for a container the pond pump doesnt need to be in the pond its empty im going to recycle the liquid thru a few pads of scotch bright scourers then over a couple of hard drive magnets for cleaning before it returns to the tank
and see what happens thanks everyone
john

Glad to hear they turned up. That was quick.
Dave

Are you using this set up on a mill or lathe.

If it is on a mill place one of your magnets near the drain hole in the bed,this will catch the bulk of any magnetic swarf in the coolant.

Are you using a standard solubile oil,or something else.

How big in diameter is your barrel.

If the barrell is of a reasonable diameter I wouldnt worry about magnets in your tank,just position your return line on the opposite side to the pump.

I have not yet had any problems with mattalic foriegn bodies causeing any harm to my pumps.

Not to sure about the scourers,depending on the type and mix of coolant you use they could restrict the return flow of coolant to tank,possably causeing a build up on the mill table.

Another small and cheap thing to use if you want to keep mettallic particles out of the sump is to run your return line in to a vegetable strainer,the type with the fine mesh.

If its for a lathe you could try the magnet near your table outlet or just the line feeding into the strainer.