Plumbing a water-cooled spindle.

[cropwell]

Just a word of caution - phenol may attack and embrittle any plastic or rubber it comes into contact with.

My central heating header tank had a pint of cheap engine oil floating on top of the water to exclude oxygen. It worked well as it just stayed in the tank. Any oxygen in the water was soon boiled out.

[routercnc]

Late to the thread but I’ve been using pc water cooling fluid for years and works fine. Lots on eBay such as EK-cryofuel.
Claim they are non toxic, don’t corrode wide range of metals, have anti fungicide etc.

[cropwell]

Late to the thread but I’ve been using pc water cooling fluid for years and works fine. Lots on eBay such as EK-cryofuel.
Claim they are non toxic, don’t corrode wide range of metals, have anti fungicide etc.

Of course ! Why did I not think of that, when most of the components I have for spindle cooling are out of a water cooled computer.

[Kitwn]

Of course ! Why did I not think of that, when most of the components I have for spindle cooling are out of a water cooled computer.

Of course ! Why did I not think of that... as well! Though I've never water cooled a computer and I'm not using anything as swanky as a radiator in my system. Good idea.

Kit

[Kitwn]

OK, so I was about to buy 'Mayhems Biocide Extreme' additive especially for PC cooling systems when I spotted a warning not to use it in aluminium systems. Since the body of my spindle is aluminium this is no good. I think it's time to just stick with the distilled water and nothing else!

Kit

[routercnc]

OK, so I was about to buy 'Mayhems Biocide Extreme' additive especially for PC cooling systems when I spotted a warning not to use it in aluminium systems. Since the body of my spindle is aluminium this is no good. I think it's time to just stick with the distilled water and nothing else!

Kit

The Chinese spindles look more like stainless steel to me. The end cap could be aluminium but the barbs go most of the way through up to the seal.

In any case the EK-Cryo fluid claims to be ok with SS Ali brass etc for corrosion and is not an additive. Just pour in neat.

I’ve used it for years without issues.
https://www.watercoolinguk.co.uk/p/E...SABEgLHY_D_BwE

[RobC]

Mine is SS, I just run plain good old water through mine. All I do is just change it every now and then. I don't really see much point in using expensive cooling agents for such.

[Kitwn]

Just back from a few days digital detox at Point Samson. No CNC machine, no internet!

A lot of the PC cooling fluid appears to be incredibly expensive eye candy, all swirly pearl effect colours. My key concern was the water going green (on it's own) which hasn't happened so far, so I'm sticking with plain distilled water for now.

Kit