Dynamic balance of high speed and large capacity refrigerated centrifuge
The high-speed large-capacity refrigerated centrifuge is inconsistent with the geometric center of the rotor due to uneven material structure of the rotor. When the rotor is running due to mass asymmetry, the inertia main shaft deviates from the rotating shaft, which will cause imbalance and generate additional force and torque. The rotor with high speed is relatively large in centrifugal force, and the small unbalanced mass will generate a large centrifugal inertia force, which will cause the centrifuge to generate vibration, increase the dynamic load, reduce the use effect of the centrifuge, shorten the service life, and severely Causes damage to the centrifuge.
Ways to overcome dynamic imbalances:
(1) For high-speed centrifugation, large particles are removed at a low speed for samples with a large amount of precipitation.
(2) Do not use a sample with different densities to form a pair of corresponding tubes.
(3) The weight of the sample in a pair of corresponding tubes should be the same and the volume should be the same.
(4) Centrifugal caps should be balanced first. Different caps of different materials and different models have different weights. Do not mix them.
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