Definition : Free-standing centrifuges designed to process a large volume of specimens, possibly contained in a large number of test tubes. These centrifuges are typically large stationary structures and consist of an electric motor, a shaft, a tachometer, 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). Floor-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 and/or facilitate performance of temperature-sensitive assays. Floor centrifuges are used mainly in the clinical laboratory for a variety of procedures such as centrifugation of body fluids, reagents, and/or mixtures of both in preparation for analysis using other equipment.
Entry Terms : "Floor Centrifuges"
UMDC code : 15116