High-speed freezing centrifuges are used in laboratories to separate various samples such as cells, proteins, and nucleic acids. Due to its working principle and structural characteristics, failures may occur for a variety of reasons. The following are some common causes of failure and corresponding emergency measures:
Failure causes:
Excessive noise of centrifuge: it is caused by the long time of using the equipment, serious wear and tear of the equipment, and insufficient noise protection measures.
Centrifuge speed abnormality: it will lead to abnormal separation effect. Abnormal centrifuge speed can be caused by improper maintenance, aging equipment, etc.
Unbalanced samples: When the samples in the centrifuge tubes are unbalanced, it may lead to abnormal vibration or noise from the centrifuge, or even damage to the machine.
Overloaded operation: Operating beyond the maximum capacity specified for the centrifuge may result in overheating of the machine, increased vibration or other mechanical problems.
Damaged oil seals or seals: Damaged oil seals or seals in the centrifuge may result in lubricant leakage or external contamination.
Electrical problems: Problems with the power cord, plug or internal circuitry may cause the centrifuge to fail to start or operate abnormally.
Refrigeration system failure: Failure of the refrigeration system of a refrigerated centrifuge may result in poor cooling or damage to the refrigeration system.
Control System Failure: The control system of the centrifuge may fail due to a software malfunction, a circuit problem, or a damaged sensor.
Emergency Measures:
Excessive centrifuge noise: the cause of excessive noise can be determined by checking equipment bearings, gears, etc. for wear. If the equipment components are found to be badly worn, they should be replaced in time.
Abnormal centrifuge speed: Stop the centrifuge from running and check whether there is any suspended matter inside the centrifuge. If there is suspension, it should be removed. If there is no suspension, check the centrifuge rotor for damage or imbalance. If there is damage or imbalance, it should be repaired in time.
Excessive centrifuge noise: You can check for loose parts or damaged equipment components inside the centrifuge, as well as phenomena such as the rotation time of the flywheel after stopping the centrifuge. If damage to components or other problems are found, they need to be repaired or replaced promptly.
Unbalanced sample: Immediately turn off the centrifuge, remove the centrifuge tube, and rebalance the sample before centrifuging.
Overloaded operation: stop the centrifuge, reduce the sample volume to the specified capacity range, and then restart.
Damaged oil seals or seals: Switch off the power and contact a professional for repair. Do not use the centrifuge while awaiting repair.
Electrical problems: Disconnect the power, check that the power cord and plug are intact, and if necessary, contact an electrician or professional for repair.
Refrigeration system malfunction: Switch off the power and contact a service professional for inspection and repair. Do not attempt to handle the refrigeration system on your own during repairs.
Control system failure: restart the centrifuge and check the display and operator interface for error messages. If the problem persists, disconnect power and contact the manufacturer’s technical support.
Safety always comes first when dealing with any centrifuge malfunction. If you experience a serious mechanical or electrical problem, stop using the centrifuge immediately and contact a professional for repairs. Do not attempt to perform potentially dangerous repair operations on your own. Regular maintenance and inspections can help prevent malfunctions and ensure stable centrifuge operation.
