Coolant strength

[depronman]

I’m in contact with the coolant supplier to establish the brix multiplier for there semi and fully synthetic coolants that I use
For now I’ve mixed up a control batch at 5% and measured this on the refractometer and got a brix reading for it. When checking the coolant in the mill which felt a bit thick it was some three times the brix reading on the control sample
Water with a small amount of concentrate was added until I got to the same brix reading
It now feels right so all good until I get the official data from the coolant supplier

Thanks for you input from another Cnc’er in st Anne’s
Cheers paul


Sent from my iPhone using Tapatalk

[JAZZCNC]

Synthetic coolant is a completely different animal to the typical emulsion and soluble oil type coolants that typically have a 1:1 Brix (Ri) factor where semi and fully synthetics coolant can have up to 3.5 factors.

The Refractometer range (RR) doesn't actually have to be too large for synthetics coolants because of the high Brix Factor, that's why a 0-10% range is more than enough.

For instance, if the coolant Brix multiplier factor is 3.3 and you want a coolant concentration of say 8% which is a typical concentration then the RR would only need to read 2.5 so even a 0-5% refract would be plenty wide enough.

[Colin Barron]

I’m in contact with the coolant supplier to establish the brix multiplier for there semi and fully synthetic coolants that I use
For now I’ve mixed up a control batch at 5% and measured this on the refractometer and got a brix reading for it. When checking the coolant in the mill which felt a bit thick it was some three times the brix reading on the control sample
Water with a small amount of concentrate was added until I got to the same brix reading
It now feels right so all good until I get the official data from the coolant supplier

Thanks for you input from another Cnc’er in st Anne’s
Cheers paul


Sent from my iPhone using Tapatalk

An easy solution (sorry) is to make a graph using control batches of different percentage concentrations and then in future you can compare refractometer reading to concentration.