Don't discount pump heating of the water. Last week I was working on one of our machines that was down with several issues (much larger spindle 19hp). One of the problems was the cooling fan for the water was dead. It was a lower priority than some of the other problems, so I was working on it for a couple of hours with the power on, then went look at the cooler and I was shocked at how warm the water was. Without the spindle running at all, in the time I worked on the machine, the water temp had risen from room temp to about 3 times higher than it normally is with the spindle cutting and the cooling fan working. The fan and radiators are very important on this 5 gallon cooling system.
Todd Zuercher P. Graham Dunn Inc. 630 Henry Street Dalton, Ohio 44618 Phone: (330)828-2105ext. 2031 -----Original Message----- From: Ken Strauss <ken.stra...@gmail.com> Sent: Friday, March 15, 2019 3:03 PM To: 'Enhanced Machine Controller (EMC)' <email@example.com> Subject: Re: [Emc-users] Spindle motor coolant advice needed > -----Original Message----- > From: Chris Albertson [mailto:albertson.ch...@gmail.com] > Sent: Friday, March 15, 2019 1:44 PM > To: Enhanced Machine Controller (EMC) > Subject: Re: [Emc-users] Spindle motor coolant advice needed > > When I had a coolant tank, for a different purpose, I put automatic "anti > freeze in the water. It is make just for this purpose and is > non-corrosive with materials used in car engines. > > Also, if the water recirculates it will eventually warm up. I put a 12 > volt fan on the tank lid and made it into an evaporative cooler. Then > you top off the tank with new water now and then. If the water is > taking even 25 watts of heat from the system it will heat up quite a > lot unless you rig some kind of cooling. > How about using a radiator like https://www.amazon.com/Computer-Radiator-Water-Cooling-Cooler/dp/B079DHJ91F/ which is intended to cool CPUs? It comes with mountings for three 120mm muffin fans. _______________________________________________ Emc-users mailing list Emcfirstname.lastname@example.org https://lists.sourceforge.net/lists/listinfo/emc-users _______________________________________________ Emc-users mailing list Emcemail@example.com https://lists.sourceforge.net/lists/listinfo/emc-users