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Question #: 13472

Question: Okay guys, what fluid are you using for the spindle to keep them cool? do you recommand anything else beside water for the spindle?

Current Solution

We have always used water for our cooling, but since this is a heat transfer condition, you should be fine with any form of coolant.

Additional Information:
We live in a cool part of the USA. My CNC is in an unheated garage and temperature gets to -10 degrees Fahrenheit. So we use 100% anti-freeze that is used for winterizing campers. Use same coolant year round. Put 3 gallons in a bucket with fish-tank pump, and it works great. Since there is 3-gallons of coolant, no need for fans to cool the coolant. Just pump from tank to spindle back to tank. And no worry about frozen coolant.

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