Centrifuges are widely used in biology, chemistry, medicine and other fields. It separates the different components of the sample through the action of centrifugal force, so as to realize the analysis and research of the sample. The development of centrifuges dates back to the 17th century, and today, centrifuges have become an indispensable tool in scientific research and laboratories.
Principle and classification of centrifuges
The basic principle of centrifuge is to use the effect of centrifugal force to separate the different components of the sample. Centrifugal force is generated by the rotating centrifuge rotor, when the sample is loaded into the centrifuge rotor, the rotor begins to rotate, and the groups in the sample are affected by the centrifugal force, thus separating. Centrifuges can be divided into many types according to the way centrifugal force is generated and the form of centrifuge rotor.

  1. Table centrifuge: Table centrifuge is the most common type of centrifuge, suitable for small-scale laboratory work. It usually has a small capacity, low speed, but the operation is simple and convenient, suitable for conventional centrifugal separation experiments.
  2. High-speed centrifuges: High-speed centrifuges are used for experiments requiring higher centrifugal force, such as cell separation, DNA extraction, etc. It has a larger capacity and higher rotational speed, and is able to generate greater centrifugal force, resulting in more efficient separation.
  3. Ultra-centrifuge: Ultra-centrifuge is one of the most advanced centrifuges, capable of producing extremely high centrifugal force. It is mainly used to separate protein, nucleic acid and other polymer compounds, with a high degree of separation effect and accurate control ability.
    Second, the application of centrifuges in biological research
    Centrifuges play a vital role in biological research. It can be used to separate biological samples such as cells, organelles and proteins, so as to realize the study of their structure and function. Here are a few typical applications of centrifuges in biological research.
  4. Cell separation: Centrifuges can be used to separate different types of cells. By adjusting the centrifuge speed and centrifuge time, different types of cells can be settled to different locations, thus achieving separation.
  5. DNA extraction: DNA extraction is one of the common experimental steps in biological research. Centrifuges can be used to separate DNA from other cell components, resulting in a pure DNA sample.
  6. Protein purification: Centrifuges can be used to separate proteins and other cell components. By centrifugation, protein samples with higher purity can be obtained for subsequent studies.
  7. Organelle research: Centrifuges can be used to separate and study organelles, such as mitochondria, lysosomes, etc. By centrifugal separation, a pure organelle sample can be obtained, and its structure and function can be studied in depth.
    Third, the development trend and prospect of centrifuges
    With the continuous progress of science and technology, centrifuges are also constantly developing and innovating. The following are several development trends and prospects for centrifuges.
  8. Automation and intelligence: Future centrifuges will tend to be automated and intelligent. By introducing automatic control and intelligent algorithms, centrifuges can achieve more precise and efficient sample separation with less interference from human operation.
  9. Versatility: Future centrifuges will have more functions. In addition to traditional centrifugal separation, centrifuges may integrate more experimental functions, such as temperature control, fluorescence detection, etc., to meet the needs of more sample handling.
  10. Miniaturization and portability: Future centrifuges may tend to be miniaturized and portable. By reducing the size and weight of the centrifuge, it is more portable and convenient for use in scenarios outside the laboratory, such as field research, medical diagnosis, etc.
    As an important experimental instrument, centrifuge plays an important role in the fields of biology, chemistry and medicine. Through the role of centrifugal force, the centrifuge can separate the different components of the sample, so as to achieve the analysis and research of the sample. Centrifuge development trends include automation and intelligence, versatility, and miniaturization and portability. In the future, centrifuges will continue to play an important role in scientific research and laboratory work, providing scientists with more accurate and efficient experimental tools.

High-speed centrifuge because of the fast speed, it is easy to cause the motor to heat up, usually this time we need to pay attention to the operation of the centrifuge.

Because there are several causes of motor bearing heating, to meticulously analyze the situation in detail.

Now we introduce you to the possible causes of centrifuge motor heating related causes.

First, there may be due to overload or overload, there may be cooling fans and other existing problems, there may be mechanical friction due to the heat generated, but the main problem is whether the bearings can be genuine.
But the main problem is whether the bearings can be authentic, some users in order to low price and purchase low-cost bearings, thus generating bearing heat, hot, so that the bearing burned.

The main problem is whether the bearings are authentic, some users purchase low-cost bearings for the sake of low price, thus resulting in bearing heat, hot, so that the bearing burned and so on. Therefore, the first emphasis on the purchase of authentic bearings.

Second, to pay attention to adhere to the mechanical lubrication, the choice of high quality high temperature lithium grease, lithium grease is also a good poor bearing heat is another major cause.
In addition to your careful examination of the situation, assuming that mechanical friction will be accompanied by noise, mechanical parts will have obvious wear and tear you said the bearing has loosened.

That should be a bearing problem, the need to change the bearing. It is recommended to purchase authentic imported bearings.

Third, the centrifuge spindle concentricity can be accurate, under normal circumstances people do not pay much attention to concentricity, spindle concentricity tendency is easy to constitute a bearing heat.
This requires centrifuge motor production with strong technology and production capacity, some centrifuge manufacturers in order to save production costs, motor shaft and motor stator assembly themselves.

No synchronous assembly in the motor factory, due to the lack of technical guidance, easy to produce concentricity of the spindle tilt, and constitute the bearing heating.

High-speed centrifuge motor heating causes

Development history
Centrifuges, also known as precipitators, range from separation centrifuges, which are used to quickly separate suspended substances from liquids, to preparative large centrifuges, which are used to concentrate and purify particles, to low-speed analytical centrifuges for experimental analysis, and despite the different types of centrifuges, their functions can be considered as separation, concentration, purification and analysis.

Overview of benchtop frozen centrifuge

The development of centrifuges is reflected in the continuous improvement of the structure and centrifugal methods. The improvement of the structure is first reflected in the increase in speed, from the * initial development of only a few dozen revolutions to today’s hundreds of thousands of ultra-high-speed centrifuges have experienced six generations, the life of the drive system from 10 billion revolutions to 20 billion revolutions; working time from a few hours to the effect of ten hours or days; centrifugal rotor (head) of the type of continuous improvement and increase; control of the degree of automation continues to improve; body appearance towards beautiful, practical The major progress is the continuous enrichment and development of centrifugal methods; the application of centrifuges has been expanding.

Centrifuge (benchtop freezing centrifuge) transmission method has gone through the process of hand crank type to electric type, mechanical variable speed, hydraulic and pneumatic powered mechanical variable speed up to today’s variable frequency motor.

Centrifuge (benchtop freezing centrifuge) is a special instrument that uses centrifugal force to separate and precipitate mixed liquids (containing solids). Commonly used electric centrifuges in laboratories are low-speed and high-speed centrifuges and low-speed and high-speed freezing centrifuges, as well as ultra-speed analysis and preparation of dual-use freezing centrifuges and other models.

Three foot centrifuge in use in addition to know the correct method of operation, but also should pay attention to the centrifuge rotor, this is why? The main reason is that the centrifuges have different centrifugal force sizes and different rotor materials. However, the rotor material installed on the centrifuge is fixed and it is not possible to change the rotor because of the high and low centrifugal force requirements of the substance to be separated by the centrifuge. As a result, the rotor of the centrifuge may be damaged. This damage is accumulated over time and does not reflect immediately. Therefore, the centrifuge rotor must be observed primarily each time the centrifuge is used.

Three foot centrifuge in the use of what should pay attention to

Now that we know that three-foot centrifuges need to be used with attention to the rotor, what checks do we need to do during daily use to ensure that the rotor is in proper condition?

Centrifuges should not be used if the rotor and washers show signs of corrosion or other defects.

Only use centrifuges with rotors and accessories approved by the manufacturer. Use of inferior equipment is strictly forbidden; it may be dangerous if glass breaks or if the vessel explodes out of balance at high speeds.

Do not open the lid when the rotor is moving. Do not use any material that could damage the rotor of a three-foot centrifuge. For example, highly corrosive substances can damage the material of the rotor and its gasket and affect its mechanical strength.

Do not put your hand into the rotor cavity when the rotor is moving. Infectious, toxic, pathogenic and radioactive substances must be used in specific rotors and containers. If there is a risk of contamination by toxic, radioactive or pathogenic substances, appropriate measures should be taken to ensure their personal safety.

Centrifuges must not be used if the rotor is overloaded; centrifuges must not be used if the rotor load is asymmetrical.

The precautions related to the centrifugal rotor of the three-foot centrifuge have been explained in great detail, if you want to know more about it, you can get in touch with us, and our staff will solve your problems.

How to use the centrifuge correctly

Have you read the instructions for using the centrifuge? Do you use the correct method? The use of centrifuges has largely liberated people’s labor productivity and accelerated production efficiency, so to speak, centrifuges have been able to take the lead in industry, but centrifuges should still be used in strict accordance with the use of the method of.

How to use the centrifuge correctly

Tabletop low-speed large-capacity centrifuge use clarification.

Tabletop low-speed large-capacity centrifuge Overview.

Table-top low-speed large-capacity centrifuge is suitable for sedimentation, mixture, etc.. This machine uses brushless motor, microcomputer control, with RCF automatic accounting and setting. With a variety of program maintenance, simple operation, maintenance-free benefits.

Tabletop low-speed large-capacity centrifuge primary technical instructions.

  1. Use of power: AC 220V ± 10v 50HZ
  2. Machine power: 500W
  3. Speed: 500 ~ 5000 rpm ± 50 rpm adjustable digital flash
  4. Centrifugal capacity: 8 × 50mL 28 × 10mL 4 × 100mL 2 × 400mL 4 × 250mL 36 × 10mL
  5. Relative centrifugal force: 4390xg digital flash
  6. Appearance standard: 420×460×320(mm)
  7. Timekeeping: 1 to 99 minutes digital flash
  8. Weight: 48kg
  9. Noise: ≤ 65db at maximum speed

Tabletop low-speed large-capacity centrifuge using methods.

First of all, the machine with the centrifuge tube to participate in the need to separate the materials, respectively, stabbed into the centrifugal head hole, the mass of each centrifuge tube added material necessary to the bottom equal, close the cover, turn on the power, turn on the power switch (behind the instrument).

  1. Press the selector key according to the flashing screen indication (flashing number), and then use the ▲▼ keys to select the desired rotor number (2).
  2. Press the selector key again to select the desired speed according to the flashing screen (flashing number), and then use the ▲▼ keys to select the desired speed.
  3. Press the selection key again to select the desired operating time according to the flashing number on the flashing screen, and then use the ▲▼ keys.
  4. Press the approval key, then press the start key, and the centrifuge will operate initially. When the set operating time is reached, the alarm will be automatically announced.

Centrifuge is one of the equipment used in industry, can help people achieve higher efficiency, so only centrifuges can get better maintenance and maintenance, in order to play a higher efficiency, so the following is mainly for you to summarize some of the correct maintenance methods on the centrifuge, for reference only, details consulting.

  1. Before the operation of the centrifuge should first block the power supply and first release the centrifuge brake, you can try rolling the drum by hand to see if there is a braking situation.
  2. Check other parts for looseness and abnormal conditions.
  3. Turn on the power supply and start the machine against the clockwise direction (generally it takes about 40-60 seconds from the stop condition to normal operation).
  4. Generally, each piece of equipment must be empty after arriving at the factory for about 3 hours, no abnormal conditions can be operated.
  5. Material should be placed as evenly as possible.
  6. It is necessary to have a person to operate, and the capacity should not exceed the rated amount.
  7. Forbid the machine to work at excessive speed to avoid affecting the life of the machine.
  8. After the machine is started, if there is an abnormal condition, it is necessary to park and check, and if necessary, it should be dismantled and repaired.
  9. The operation of the centrifuge is high-speed operation, so do not use your body to touch the drum to prevent accidents.
  10. The mesh of the filter cloth should be based on the size of the solid particles of the material to be separated, otherwise it will affect the effect of separation.
  11. Other filter cloth equipment should be filter cloth seal ring embedded in the drum sealing groove to prevent the material from running into.
  12. To ensure the normal operation of the centrifuge, rolling parts please refuel and maintain after every 6 months.
  13. Check the smooth operation of the bearings, whether there is wear and tear; brake equipment in the parts of the wear condition, serious to replace; bearing cover oil leakage condition.
  14. Machine use is over, should make good cleaning work, adhere to the machine neat.
  15. Do not separate the non-anti-corrosive centrifuges from the highly corrosive materials; other strictly in accordance with the equipment requirements, rules of operation, non-explosion-proof centrifuges must not be used for flammable, explosive occasions.

Centrifuge maintenance is something that staff must be concerned about, only to get better maintenance methods, to be able to use longer than others, of course, good maintenance methods can not be separated from the better quality of centrifuges, choose high-quality centrifuges