FIELD: biology, medicine, cattle production, cryogenic preservation of biological substances and suspensions for protracted storage. SUBSTANCE: device for freezing the biological suspensions has housing with revolving cooled drum arranged inside it, suspension loading mechanism, frozen suspension unloading mechanism and device for separation of frozen suspension. Revolving drum is thin-walled drum; loading device has one or several reservoirs tightly connected with one or several micropipettes whose center portion is placed in cooler, Unloading mechanism has one or several capsule-test tubes arranged in heat-insulated casing for fixing them on housing; cooler, cooled drum and heat-insulating casing are hydraulically connected with Dewar flask containing cryogenic fluid. EFFECT: enhanced reliability. 1 dwg
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