Guidelines for Safe Operation and Scientific Maintenance of Benchtop High-Speed Centrifuges

Desktop high-speed centrifuge As an indispensable separation device in the laboratory, its proper use and regular maintenance are crucial for ensuring the accuracy of experimental results and extending the service life of the equipment. The following is a detailed guide on its use and maintenance:
I. Key Points for Safe Use
1. Preparations before use
Make sure the centrifuge is placed on a level, sturdy work surface and avoid placing it in a location with significant vibrations.
Check that all components of the centrifuge are securely fastened and that there are no foreign objects inside the chamber.
Confirm that the power voltage matches and that there is good grounding.
Centrifuge tubes placed in symmetrical positions must have identical weights, with a deviation not exceeding 1 gram.
2. Sample Preparation and Placement
The sample must be pre-equilibrated and weighed on a balance before use.
The sample volume in the centrifuge tube should not exceed two-thirds.
The weight deviation of centrifuge tubes positioned symmetrically should be as small as possible.
The centrifuge tube cap must be tightly sealed to prevent liquid leakage.
Place the centrifuge tubes into the rotor in symmetric positions, ensuring they are properly secured.
3. Operating Procedures
Before turning on the machine, make sure the timer knob is in the "0" position.
The rotation speed adjustment knob should be slowly turned to the desired value.
During the centrifugation process, it is strictly forbidden to open the lid.
If you detect any unusual noise, vibration, or strange sounds, immediately turn off the power.
After centrifugation is complete, you must wait until the rotation has completely stopped before opening the lid.
II. Daily Usage Procedure
Power-on preparation: Check that the machine chamber is clean and ensure there are no residual materials.
Sample placement: Place the equilibrated samples symmetrically into the rotor.
Set parameters: Configure time and speed according to experimental requirements.
Start operation: Close the lid and start the centrifuge.
End the operation: After centrifugation is complete, turn the speed control knob to the minimum setting, reset the timer to zero, and then turn off the power.
Final cleanup: Remove the sample, clean the chamber and rotor, and close the centrifuge lid.

III. Scientific Maintenance and Care
1. After each use
Clean the internal cavity and rotor promptly to ensure there are no residues.
Wipe the exterior of the centrifuge to keep it clean.
Check each component for abnormalities to ensure safety.
2. Regular maintenance
Cleaning and Maintenance: Perform a thorough cleaning every 2-3 weeks to remove stains from the machine cavity.
Component Inspection: Regularly check the wear condition of bearings and seals.
Balance Adjustment: Regularly calibrate the centrifuge’s balance to ensure smooth operation.
Carbon Brush Inspection: The motor carbon brushes should be replaced promptly after approximately 3,000 hours of use.
Drying Treatment: When the centrifuge has not been used for an extended period, open the centrifuge lid for a while before use to dry the internal cavity.
3. Long-term maintenance
Lubricate and maintain rotating parts every 6 months.
Regularly inspect the brake system for wear and replace parts as necessary.
Conduct a comprehensive performance test once a year.
Keep the device clean and dry, and avoid placing it in a humid environment.
Do not use non-corrosion-resistant centrifuges to process highly corrosive materials.
IV. Safety Warnings
It is strictly prohibited to touch the rotor with your hands while the centrifuge is running to prevent accidents.
If any abnormalities occur during the centrifugation process, immediately turn off the power and notify qualified personnel for inspection.
Do not operate at speeds exceeding the rated limit to avoid compromising the equipment's service life and experimental safety.
Turn off the power promptly after use to avoid prolonged standby.
Regularly check the equipment status to ensure safe operation.
V. Troubleshooting Common Issues
Unstable rotational speed: Check for bearing wear or motor failure.
Excessive noise: Check whether internal components are loose or worn.
Unable to start: Check the power connection, control panel malfunction, or start button.
Abnormal vibration: Check whether the sample is properly balanced or whether the rotor is installed correctly.
By following the above guidelines for use and maintenance, you can ensure the proper operation of the desktop high-speed centrifuge, extend its service life, and provide accurate and reliable data support for your experiments. Laboratory personnel should undergo regular operational training to ensure correct equipment usage and eliminate potential safety hazards.