Fusion Coolant Systems supplies a supercritical CO₂ coolant (Pure‑Cut®/Pure‑Cut®+) that replaces oil‑based fluids in CNC machining, providing liquid‑like heat extraction and lubrication directly at the tool‑workpiece interface. The solution integrates with existing machines through minor retro‑fit, delivering 2‑5× faster cycle times, longer tool life, and a cleaner, lower‑emission shop floor by using reclaimed CO₂.
Funding
Funding not disclosed
Founders
Product
Problem
Conventional CNC machining relies on oil‑based flood coolants or minimum‑quantity lubricants that generate hazardous mist, require extensive waste handling, and limit cutting speeds, tool life, and cycle time. These health, safety, and environmental drawbacks constrain productivity across high‑precision sectors such as aerospace, automotive, and medical device manufacturing.
Solution
Fusion Coolant Systems replaces traditional cutting fluids with Pure‑Cut® and Pure‑Cut®+ technologies that deliver supercritical carbon dioxide (scCO₂) directly to the tool‑workpiece interface. In its supercritical state, CO₂ provides liquid‑like density for effective heat extraction while remaining a gas for rapid chip evacuation, enabling dry or near‑dry machining. The system integrates with existing CNC machines via minor plumbing modifications and can optionally dispense a low‑paraffin oil for added lubrication (Pure‑Cut®+). By using reclaimed CO₂, the solution eliminates oil‑based contaminants, reduces operator exposure, and lowers the overall carbon footprint. The result is 2‑5× faster cycle times, significantly extended tool life, superior surface finishes, and a cleaner shop floor without sacrificing compatibility with current tooling or processes.
Features
- Supercritical CO₂ delivery at >73 bar and >31 °C provides high heat‑transfer capacity and inherent lubrication comparable to conventional fluids.
- Pure‑Cut® operates as a fully dry coolant for ultra‑clean applications (e.g., medical implants); Pure‑Cut®+ adds controlled low‑paraffin oil dosing (15‑30 mL hr⁻¹) for enhanced lubrication on demanding metals.
- Minimal machine retro‑fit: only small coolant‑line modifications are required; machines can revert to traditional fluids if needed.
- Scalable turnkey infrastructure packs support single‑machine installations up to 1,000 units, with on‑site gas supply integration from global CO₂ providers.
- Real‑time CO₂ concentration monitoring and automatic shutdown to stay below OSHA 5,000 ppm exposure limits.
- Low consumable rate of 2‑10 kg hr⁻¹ per machine, sourced from recycled industrial CO₂ streams, reducing material cost and emissions.
- Compatibility with standard CNC tooling; optional tool geometry recommendations for optimal scCO₂ flow and chip evacuation.
- Cloud‑connected diagnostics (optional) for predictive maintenance and performance analytics.