Hi guys, I’ve got an HY spindle with a custom water cooling system. Everything works great with one exception. The coolant reservoir is getting lower, and there are zero visible leaks. No drips, moisture, or even evidence of past dripping anywhere. Could my spindle be consuming coolant somehow? P…

Hi I have run a HY for coming up to 3 years and in all that time have only added around 1 pint of top up to the reservoir. My system is home made with a 25L / 5 G plastic box with a clip on lid. The coolant pump is submerged in the tank there are 2 small hole in the top 1 for the flow pipe and on…

It shouldn’t be evaporation since the system is fully sealed. The reservoir is a small PC based reservoir so it holds very little by comparison to your system. It relies on a radiator for heat distribution/cooling. At first, I attributed the lowering level in the reservoir to colder temperatures in…

Well, this may have been a much simpler issue than I thought! I discovered that there were quite the number of air bubbles trapped in the radiator. After a bunch of tapping on the radiator with the pump running, they seem to have all come out. And the coolant in the small reservoir dropped a bit mo…

Spindle Coolant Disappearing

Spindle/VFD (Aftermarket/Unsupported)

349iq2345 May 23, 2024, 2:20pm 4

Hey chargedmr2,

you have a little gnome in your system that lives of drinking ethylene glycol.

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Spindle Coolant Disappearing

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