High-Capacity Centrifuge: Operating Rules and Maintenance Guidelines

I. Introduction
  High-capacity centrifuge Thanks to their large capacity and high efficiency, centrifuges play an important role in various fields such as biochemistry, medical research, and the pharmaceutical industry. However, to ensure the proper operation of centrifuges and prevent equipment damage and safety incidents, it is particularly crucial to master their correct operating procedures and maintenance methods.

II. Operating Rules for High-Capacity Centrifuges
(1) Placement and Installation
Placement Environment: The centrifuge should be placed on a flat, sturdy work surface, ensuring that the unit is level and free from vibration. Meanwhile, the workspace should be kept tidy and clean, well-ventilated, and dry, avoiding direct sunlight or ultraviolet radiation to prevent discoloration and paint chipping on the centrifuge’s exterior.
Install the rotor: Handle rotor installation and removal with care. When removing the rotor, lift it vertically upward to avoid bending the spindle. Before installation, check the rotor for any signs of corrosion or damage. Never run the unit unloaded without the rotor installed.
(2) Operating Procedure
Startup Preparation: Open the centrifuge lid, place test tubes of equal weight inside, and ensure that the samples are arranged symmetrically to prevent unbalanced operation. After closing the centrifuge lid, turn on the power switch; the indicator light will illuminate.
Parameter Settings: According to the separation requirements, set the timer or select the continuous-on mode, and adjust the speed control knob to the desired rotational speed. Note that the selected rotor number must correspond to the rotor that is about to be operated; the set speed and centrifugal force must not exceed the rated speed and centrifugal force specified for the corresponding rotor number.
Operation Monitoring: During centrifuge operation, it is essential to monitor its running status to ensure there are no abnormal vibrations or noises. It is strictly prohibited to open the centrifuge lid while the rotor is spinning, and under no circumstances should you touch the rotating rotor.
Shutdown Procedure: Before each shutdown, turn the speed control knob to the minimum position, set the timer to zero, then turn off the power switch and unplug the power cord.
(3) Safety Precautions
Prohibited Actions: Do not turn your head while the centrifuge is operating under unbalanced loading conditions. Also, do not allow any liquids or other foreign objects to enter the centrifuge’s working chamber, as this could damage the main unit.
Exception Handling: If any abnormal phenomena are detected in the centrifuge—such as excessive vibration or unusual noise—the machine should be immediately stopped for inspection, and a professional should be contacted.

III. Key Maintenance Points for High-Capacity Centrifuges
(1) Daily Maintenance
Cleaning and Maintenance: After each use, the rotor, centrifuge chamber, and centrifuge tubes must be cleaned to ensure the equipment remains clean and hygienic. Regularly inspect all parts of the centrifuge for any signs of damage or looseness; if any damage or looseness is found, repair it promptly.
Lubrication and Maintenance: The bearings of the electric motor should be regularly lubricated to reduce wear and noise.
(2) Regular Maintenance
Rotor Inspection: Regularly check the rotor for corrosion or damage. If any damage is found, replace it promptly. When the rotor is not used for an extended period, it should be removed to prevent the shaft from rusting.
Refrigeration System Inspection: For large-capacity centrifuges equipped with refrigeration systems, it is necessary to regularly check the operational status of the refrigeration system and promptly replenish the refrigerant to ensure stable temperature within the centrifuge chamber.
Seal Inspection: Regularly inspect the centrifuge’s seals, such as the door cover pneumatic support rods and door lock switches, to ensure they are functioning properly. If any deformation or signs of aging are detected, replace them promptly.
(3) Special Maintenance
Anti-contamination measures: For large-capacity centrifuges used to process biological samples, anti-contamination measures must be implemented, such as using disposable centrifuge tubes and performing regular disinfection.
Troubleshooting: In the event of a centrifuge malfunction—such as excessive vibration, loud noise, or the motor failing to rotate—perform troubleshooting and repairs based on the specific fault symptoms. For faults that you cannot resolve on your own, promptly contact qualified professionals for repair.

IV. Conclusion
As one of the essential pieces of equipment in a laboratory, the large-capacity centrifuge’s proper usage guidelines and maintenance methods are crucial for ensuring its smooth operation and extending its service life. By adhering to the usage rules, strengthening daily and periodic maintenance, and implementing special maintenance measures, we can effectively reduce the equipment’s failure rate and enhance both experimental efficiency and safety.