Get current pricing for Sigma, Sigma-28704-ID Sigma Table Centrifuge 101. Analog Display. Timer 0-60 Min. 220 V. 50 Hz. 105 W. 4-fold Swing-out Rotor For 15 Ml Tubes. Max 5100 Rpm. . Product Category: Lab Equipment, Sub Category: Centrifuge - Benchtop: