Supercritical CO2 coolant. The biggest breakthrough in CNC machining right now?

By Clinton Perry


Wednesday 3 June 2026, 3:00:00 PM


Up to 3x faster cycle times. Up to 4x the tool life. Surface finish up to 5x better than emulsion. All at the same time! Fusion Coolant Systems has spent twenty years developing this technology, with two hundred machines running globally.

Unlike traditional emulsion or flood coolant, supercritical CO2 loves tight spaces, slashes heat and friction at the cutting zone, and in some medical applications can machine with zero oil – parts coming off cleaner than they went on!

Supercritical CO2 coolant is now available in the UK exclusively through MTT. Clinton Perry of MTDCNC meets Steve Skerlos of Fusion Coolant Systems for a live demo that you genuinely have to see to believe.



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