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High speed centrifuges can be fitted to a wide range of rotors

Dec 17, 2018

High-speed centrifuge microcomputer control, digital display, touch panel, programmable operation, brushless motor, RCF value can be automatically calculated, with electronic door lock, overspeed and other protection and parameter automatic memory function, can adapt to a variety of rotors, With the imported compressor unit, temperature control between -20 °C and 40 °C can be achieved. The high-speed centrifuge is a compact, compact, safe, quiet-running 24-hole benchtop high-speed (freezer) centrifuge. With soft brake function, it can effectively prevent the sample from resuscending and protect sensitive samples. It can meet the needs of every molecular and biological laboratory. In the static pre-cooling mode, the compressor automatically starts cooling when the centrifuge cover is closed.

Analysis of common faults in high speed centrifuge motors:

1. After the high-speed centrifuge is energized, the motor will not turn: first check the power cord, plug and socket. If it is damaged, it should be replaced. If there is no problem, check whether the band switch or varistor is damaged or the cable is disconnected. If it is damaged or opened, replace the damaged component and re-weld the wire. If there is no problem, check whether the motor field coil is broken or open (internal). If the coil is broken, it can be re-welded. If the coil is internally broken, the coil can only be re-wound.

Second, the high-speed centrifuge motor speed does not reach the rated speed: first check the bearing, if the bearing is damaged, replace the bearing. If the bearing is short of oil or too much dirt, the bearing should be cleaned and greased. Check if there is any abnormality on the surface of the commutator or if the brush matches the surface of the commutator. If there is any abnormality on the surface of the commutator, if there is a layer of oxide, sand it with fine sandpaper. If the commutator does not match the brush, it should be adjusted to a good contact. If there is no such problem, check the rotor coil for short circuit. If it is, rewind the coil.

Third, the high-speed centrifuge vibration is severe, the noise is high: check whether there is an imbalance problem. The screw of the fixed machine is loose. If it is, tighten it. Inspect the bearing for damage or bending. Replace the bearing if available. Friction occurs when the machine cover is deformed or incorrectly positioned. If so, adjust it.

4. When the air is cold, the low speed gear of the high speed centrifuge cannot be started: the lubricating oil solidifies or the lubricating oil deteriorates and sticks. At the beginning, you can use your hand to help re-rotate after re-turning or cleaning.

High-speed centrifuge is a commonly used centrifuge product, which is mainly used to separate solid particles from liquid in suspension. It is widely used in chemical, petroleum, food, pharmaceutical, mineral processing, coal, water treatment and other industries.