Laboratory centrifuge maintenance and troubleshooting
　　The following is a brief introduction to the maintenance of ordinary centrifuges. There are many kinds of existing centrifuges, we often classify them in several ways: low-speed centrifuges, high-speed centrifuges, ultra-high-speed centrifuges by speed; according to the temperature requirements, can be divided into: ordinary centrifuges and freezing centrifuges; according to the volume of the centrifuge can be divided into: ground centrifuges, desktop centrifuges, handheld centrifuges, etc.
　　Centrifuge components
　　Ordinary centrifuge consists of motor, turntable, speed regulator, housing, base and other components. The motor is lightly loaded at high speed, but as the load increases, the speed drops sharply.
　　1. Speed:
　　According to the centrifuge speed is large, centrifuges are divided into low-speed centrifuges(
　　2. Capacity:
　　These factors determine the total capacity of the centrifuge. In summary, the total capacity of the centrifuge is equal to the capacity of each centrifuge tube × the number of centrifuge tubes, and the total capacity and workload are matched to each other.
　　3. Rotor:
　　There are two main types of centrifuge rotors:
　　Horizontal rotor:The drum runs horizontally, at right angles to the axis, and the sample settles to the bottom of the centrifuge tube.
　　Angled rotor:The centrifuge vessel is at a fixed angle to the shaft and the sample will concentrate on the bottom of the centrifuge tube and on the side walls near the bottom.
　　Choose a horizontal rotor if the sample is to be concentrated at the bottom of the centrifuge tube, or an angled rotor if the sample is to be concentrated at the bottom of the tube and the side wall near the bottom. Some special experiments or special samples need special rotors, such as large capacity basket (mainly used in blood stations), enzyme plate rotor, slide rotor, polymerase chain reaction rotor, test tube rack rotor, capillary rotor, etc.
　　Both types of rotors have fixed specifications and are combined with the capacity of the centrifuge. For example, the 12*5ml angle rotor determines the type of rotor and the capacity of the centrifuge, so the choice of rotor is important.
　　4. Control system :
　　The high quality centrifuge adopts the microcomputer control system, which can ensure the safe operation of the centrifuge as well as automatically complete the work task.