In industries where precision, reliability and very low temperatures matter, ultra-low temperature (ULT) chillers play a critical role. Ultra Low Temp Series is designed specifically to meet those demanding process-cooling needs. Typical ultra-low temperature systems extend well below -40 °C (-40 °F) and are engineered for specialty fluids, multi-stage refrigeration and heavy-duty environments.
Key applications
- Materials testing & aerospace components – In aerospace, automotive and defence sectors, components are often tested under extreme cold to validate performance in high-altitude or arctic conditions. ULT chillers provide the stable sub-zero environments needed for thermal cycling, fatigue testing and specialized materials research.
- Pharmaceutical, chemical, and biotech processes – Manufacturing active pharmaceutical ingredients (APIs), conducting freeze-drying operations, or maintaining solvent stability often require ultra-low liquid temperatures. ULT chillers ensure precise and consistent cooling to support chemical reactions or product integrity.
- Food processing and extraction – From botanical and hemp extraction to food freeze-processing, ultra-low chillers keep fluids at deeply chilled temperatures to optimise yield, prevent degradation, and ensure food-grade or solvent-safe operation.
- Equipment cooling & test labs – Sensitive medical devices, lasers, MRI/PET systems, electronics test chambers and catalyst rigs all benefit from ultra-low temperature chilling to reduce thermal noise, extend component life and maintain tight tolerances.
Why ultra-low matters
Standard chillers may stop around 0 °C or a moderate negative temperature; by contrast, ultra-low chillers extend further and require advanced refrigeration cycles, specialized heat-transfer fluids (glycol blends, silicone oils, fluorinated fluids) and durable components engineered for cold-out-of-the-ordinary use.
For example, reaching -60 °F and below often necessitates cascade refrigeration stages and fluids capable of remaining pumpable and safe at these extremes.
Why choose Fluid Chillers
Fluid Chillers produces ULT-capable systems built in the U.S.A with custom engineering to fit your process environment. Whether air-cooled or water-cooled, our Ultra Low Temp series is tailored for intensive, round-the-clock industrial use. With 24/7 service, broad industry experience, and manufacturing focused on the tough demands of low-temp process cooling, we’re equipped to serve large-scale, critical deployments.