View Larger Image Sigma 4-16KS Refrigerated CentrifugeStuart2019-06-10T17:29:56+01:00 Sigma 4-16KS Refrigerated Centrifuge. Key Aspects:Refrigerated version of SIGMA 4-16.Universal refrigerated table top centrifuge; speed range up to 15.000rpm.Possibility of pre-cooling rotors during standstill; Refrigeration CFC-free (R404a).Click here to Enquire