Cumulus® Freeze-Drying
Machine overview
As natural as nitrogen
CUMULUS® uses liquid nitrogen (LIN) as the cooling agent to achieve ultra-low temperatures and near-linear cooling rates unattainable with compressor systems.
A cryogenic heat exchanger system converts LIN into cold nitrogen gas, then used to independently cool both the shelves and the ice condenser within the freeze-drying chamber.
The heat transfer fluid circulating inside each shelf is cooled by cold nitrogen gas rather than liquid nitrogen. Meanwhile, the ice condenser coils are cooled directly by cold nitrogen gas, which is evenly distributed to eliminate the risk of large temperature gradients across the coils.
Production plant
IMA Life North America
Machine highlights
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Enhanced cooling performance
Fast and near-linear cooling rates.
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Independent cooling
Excellent temperature control of both chamber shelves and ice condenser.
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Increased reliability
Simple design with no moving parts and minimal maintenance.
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Reduced environmental impact
Zero emissions, no refrigerants, and quiet operation.
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Compact system footprint
Smaller space requirements for mid and large-scale installations.
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Modular and scalable design
Adaptable to new or existing freeze dryers of any size.
Process excellence
Developed by Linde and exclusively commercialised by IMA Life, CUMULUS® has earned recognition through a growing base of successful installations. The proven cryogenic cooling technology delivers exceptional performance, reliability and efficiency, ensuring long-term value and process excellence.


