USA E8 COMBINATION Centrifuge. The E8 Combination Centrifuge is specifically designed to run 75mm microhematocrit tubes and 1ml-15ml microtubes and test tubes. This centrifuge features a quiet operations for a more peaceful laboratory environment. It also features a shorter height to fit under any cabinet, and auto-calibrating speed function for precision results. To run microhematocrit tubes, simply insert your 75mm capillary tubes into the carrier, place carriers in opposing tubes sleeves for a balanced load, and spin at 3,500 rpm for 6 minutes for clear separation. Advantages: • Accurate speeds for specific g-forces • Proper separations without cell damage • Quiet, vibration-free operation • Auto-brake stops the rotor in less than 30 seconds • Spins 8, 75mm capillary tubes • Designed, Engineered, and Assembled Proudly in America Features: • Holds 1-2ml microtubes, 3-15ml test tubes and 75mm capillary tubes