Definition : Centrifuges designed to be mounted on a tabletop or bench and to process a small volume of specimens, possibly contained in a small number of test tubes. These centrifuges are typically compact, stationary structures and consist of an electric motor, a shaft, and speed and time controls; they also include a rotor on which one of several interchangeable heads is mounted. The rotor head includes slots into which tubes, cups, flasks, microplates, test tubes, and/or other sample holders can be fitted. The two most common rotor designs are fixed angle and swinging bucket (also known as horizontal). Tabletop-mounted centrifuges working at low speed (usually up to 10,000 rpm) and high speed (typically from 12,000 to 25,000 rpm) and ultracentrifuges with a speed usually between 30,000 and 120,000 rpm are available; some models have refrigerating capabilities to keep the rotor chamber cool. Tabletop centrifuges are used mainly in the clinical laboratory for a variety of procedures such as centrifugation of body fluids, reagents, or mixtures of both in preparation for analysis using other equipment.
Entry Terms : "Bench-Top Centrifuges" , "Tabletop Centrifuges"
UMDC code : 10780