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Spindle Cooling System

I needed a cooling system for my CNC spindle. Instead of using an aquarium pump and a bucket of water, I wanted something a little more convenient and elegant.

I spotted a CPU cooling system with a very nice little radiator. It’s a Thermaltake Tide Water system which I brought secondhand. Unfortunately the pump didn’t work and the fan failed soon after.

The fan was pulled out and replaced with a standard 60mm fan. The pump was replaced with a Thermaltake pump which came with 6mm fittings.

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  1. Daniel

    Can i ask, how did you wire and power the water cooling, did you hook it into your CNC’s power and if so could i enquire how to do so,(some photos perhaps or an explanation) Im looking into buy a PC water cooling kit for my 6040 cnc, cheers.

  2. kiwionpatrol

    I just used a bench power supply to begin with so I could vary the voltage and check water flow.
    I now have a 12v chinese power supply which I bought from eBay and I’ll use that. Connecting it up was simple enough, just two wires through the cable carrier to the power supply and I manually switch it on if I think the spindle will get warm.
    BTW the standard water pump in the PC cooling system was really too weak, the bigger external one is much better.

  3. Aleks

    “BTW the standard water pump in the PC cooling system was really too weak, the bigger external one is much better.”

    You mean – external Thermaltake pump?
    How do you think is it good for water spindle – Thermaltake PW 850i?
    Thank you.

    1. kiwionpatrol

      Hi, no the internal one was too small, I can’t see that the 850i wouldn’t work unless you have very high loads on the spindle for long periods of time.

      1. Aleks

        I will try to yse 850i.
        Because i have it new one.

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