Cryogenic Mill

Spex Certiprep Cryogenic Freezer Mill Model 6800. Cryogenic laboratory mills which chill samples in liquid nitrogen and pulverize them with a magnetically driven impactor. Each sample is placed in a separate grinding vial which is immersed in a liquid nitrogen bath inside the mill. Thus there is no cross-sample contamination, and the low temperature of the sample is maintained during grinding.