Tabletop laboratory centrifuge. This unit has a variable speed range of 1500 to 13000 RPM in part dependent on rotor assembly used. It includes a no brake option allowing rotor to spin to a gradual stop as well as the capability to enter combinations of time and RPM into the memory, and a door lock safety system. Heads accommodate a wide variety of tubes and can accommodate up to at least 76 tubes. Used in laboratories to prepare samples for further analysis.