Reasons for the centrifuge’s automatic shutdown
Release time:
2017-08-15
Overview:
Centrifuge Centrifuges are widely used in the pharmaceutical and chemical industries and are indispensable equipment; their development has consistently been robust. In the medical field, centrifuges are extensively employed in applications such as blood separation, virus research, DNA studies, and drug purification. Centrifugation leverages the powerful centrifugal force generated by the high-speed rotation of the centrifuge rotor to accelerate the sedimentation rate of particles in a liquid, thereby separating substances within a sample that differ in their sedimentation coefficients and buoyant densities. During operation, the safety of centrifuges has become the primary consideration when selecting equipment.
Centrifuges operate at high speeds, so it’s important to pay attention to safety when using them. By following these guidelines, your centrifuge can last for decades without breaking down!
1. When the centrifuge is in the pre-cooling state, the centrifuge lid must be closed. After the centrifugation is complete, once the rotor is removed, it should be inverted onto the experimental bench, and any remaining water inside the chamber should be wiped dry. The centrifuge lid should remain open.
2. Turn on the centrifuge once a week and run it at low speed with a rotor installed to ensure its proper functioning.
3. Regularly use a level to check whether the centrifugal shaft or centrifugal housing is horizontal. If it’s not level, adjustments must be made.
4. After each use of the centrifuge, the rotor must be removed immediately.
5. Regularly change the oil in the vacuum pump and diffusion pump to ensure the vacuum system operates properly.
6. Each time the centrifuge is used, detailed records must be kept, and a yearly statistical summary must be prepared. For high-speed centrifuges, both the entire machine and the rotors it uses have a limited service life. The entire machine is warranted for 16 billion revolutions; aluminum rotors can be used for 1,000 cycles or 2,500 hours, while titanium rotors can be used for 5,000 cycles or 10,000 hours. Once these service lives are reached, the centrifuge must be operated at a lower speed or with reduced performance.
7. Centrifuge The main accessories include rotors and centrifuge tubes, among others. When using these accessories, you must strictly follow the instructions provided in their manuals. In daily use, pay close attention to their cleaning, disinfection, and maintenance. If you notice any obvious cracks on the bottom of the rotor’s centrifugal holes or on the bottom or walls of the centrifuge tubes, do not use them.
8. Rotors from different manufacturers cannot be mixed and should be used exclusively with their corresponding centrifuge models; otherwise, the rotor’s lifespan may be shortened, and the centrifuge could even be damaged.
9. As long as the centrifuge is carefully maintained, its operating status is closely monitored, its sounds are listened to, early diagnosis is performed, and any issues are addressed promptly, the centrifuge can operate at its maximum efficiency.
In daily life, we often find that centrifuges automatically shut down—what could be the cause of this?
1. Electrical malfunction. If this is determined to be the cause, promptly contact electrical maintenance personnel to inspect and address the electrical components.
2. If the motor overheats and triggers the thermal protector to trip, it may also cause the centrifuge to stop running. In this case, you must promptly contact maintenance personnel for assistance.
3. When the slurry quantity exceeds the allowable limit, the torque arm controller will automatically disengage, triggering the automatic protective mechanism and causing the centrifuge to stop. In this situation, the operator must manually rotate the torque arm clockwise. If there is no obstruction, re-engage the torque arm, restart the centrifuge, and adjust the feed rate accordingly. If there is an obstruction, remove the small end cover, flush the drum with water, and rotate the belt back and forth until you confirm that the drum is free of accumulated material and can rotate smoothly. Only then should you restart the centrifuge. Additionally, depending on the on-site conditions, check whether the centrifuge’s discharge port is blocked by material. If the blockage is severe, it could lead to excessive equipment load and likely trigger an automatic shutdown of the centrifuge. In such a case, you must immediately clear the discharge port, remove the accumulated material, thoroughly clean the drum, and ensure that it is completely free of debris before restarting the centrifuge.
Centrifuge There is a cylindrical drum that rotates at high speed around its own axis, known as the rotor. The rotor is typically driven by an electric motor. After a suspension (or emulsion) is introduced into the rotor, it is rapidly set in rotation at the same speed as the rotor itself. Under the action of centrifugal force, the various components are separated and discharged individually. Generally, the higher the rotational speed of the rotor, the better the separation effect.
Centrifuges operate at high speeds, so it’s important to pay attention to safety when using them. By following these guidelines, your centrifuge can last for decades without breaking down!
1. When the centrifuge is in the pre-cooling state, the centrifuge lid must be closed. After the centrifugation is complete, once the rotor is removed, it should be inverted onto the experimental bench, and any remaining water inside the chamber should be wiped dry. The centrifuge lid should remain open.
2. Turn on the centrifuge once a week and run it at low speed with a rotor installed to ensure its proper functioning.
3. Regularly use a level to check whether the centrifugal shaft or centrifugal housing is horizontal. If it’s not level, adjustments must be made.
4. After each use of the centrifuge, the rotor must be removed immediately.
5. Regularly change the oil in the vacuum pump and diffusion pump to ensure the vacuum system operates properly.
6. Each time the centrifuge is used, detailed records must be kept, and a yearly statistical summary must be prepared. For high-speed centrifuges, both the entire machine and the rotors it uses have a limited service life. The entire machine is warranted for 16 billion revolutions; aluminum rotors can be used for 1,000 cycles or 2,500 hours, while titanium rotors can be used for 5,000 cycles or 10,000 hours. Once these service lives are reached, the centrifuge must be operated at a lower speed or with reduced performance.
7. Centrifuge The main accessories include rotors and centrifuge tubes, among others. When using these accessories, you must strictly follow the instructions provided in their manuals. In daily use, pay close attention to their cleaning, disinfection, and maintenance. If you notice any obvious cracks on the bottom of the rotor’s centrifugal holes or on the bottom or walls of the centrifuge tubes, do not use them.
8. Rotors from different manufacturers cannot be mixed and should be used exclusively with their corresponding centrifuge models; otherwise, the rotor’s lifespan may be shortened, and the centrifuge could even be damaged.
9. As long as the centrifuge is carefully maintained, its operating status is closely monitored, its sounds are listened to, early diagnosis is performed, and any issues are addressed promptly, the centrifuge can operate at its maximum efficiency.
In daily life, we often find that centrifuges automatically shut down—what could be the cause of this?
1. Electrical malfunction. If this is determined to be the cause, promptly contact electrical maintenance personnel to inspect and address the electrical components.
2. If the motor overheats and triggers the thermal protector to trip, it may also cause the centrifuge to stop running. In this case, you must promptly contact maintenance personnel for assistance.
3. When the slurry quantity exceeds the allowable limit, the torque arm controller will automatically disengage, triggering the automatic protective mechanism and causing the centrifuge to stop. In this situation, the operator must manually rotate the torque arm clockwise. If there is no obstruction, re-engage the torque arm, restart the centrifuge, and adjust the feed rate accordingly. If there is an obstruction, remove the small end cover, flush the drum with water, and rotate the belt back and forth until you confirm that the drum is free of accumulated material and can rotate smoothly. Only then should you restart the centrifuge. Additionally, depending on the on-site conditions, check whether the centrifuge’s discharge port is blocked by material. If the blockage is severe, it could lead to excessive equipment load and likely trigger an automatic shutdown of the centrifuge. In such a case, you must immediately clear the discharge port, remove the accumulated material, thoroughly clean the drum, and ensure that it is completely free of debris before restarting the centrifuge.
Centrifuge There is a cylindrical drum that rotates at high speed around its own axis, known as the rotor. The rotor is typically driven by an electric motor. After a suspension (or emulsion) is introduced into the rotor, it is rapidly set in rotation at the same speed as the rotor itself. Under the action of centrifugal force, the various components are separated and discharged individually. Generally, the higher the rotational speed of the rotor, the better the separation effect.
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