Small laboratory centrifuges utilize the powerful centrifugal force generated by high-speed rotation to achieve rapid separation of substances with different densities and particle sizes in suspensions or solutions. The device is compact in size and easy to operate, and can be directly placed on the experimental platform without taking up too much space. Its speed range is wide and can be flexibly adjusted according to experimental needs, suitable for various application scenarios such as cell culture, DNA/RNA extraction, protein purification, etc.

The laboratory small centrifuge is composed of multiple components, each of which plays an important role. The following will provide a detailed introduction to the functional characteristics of each component.

1. Turn around

The turning head is one of the core components, which determines the type and capacity of samples that can be processed. Common types of swivel heads include fixed angle swivel heads, swinging bucket swivel heads, and zone swivel heads.

(1) Fixed angle rotary head: suitable for rapid separation of particles. Due to the sample tube being placed at a certain angle to the rotation axis, particles will form sediment at the bottom of the tube.

(2) Swinging bucket type rotary head: During operation, the sample tube can freely swing, forming a flat interface after particle settling, which is suitable for density gradient centrifugation.

(3) Belt turning head: specially designed for large-scale preparation and continuous flow systems, it can achieve efficient processing of large volume samples.

2. Drive system

The drive system is responsible for providing power to the rotor, causing it to rotate at high speed. Modern equipment usually adopts brushless motor technology, which has the characteristics of fast start-up, low noise, and long service life. In addition, precise speed control is also one of the important characteristics of the drive system, which can ensure stability during the centrifugation process.

3. Control panel

The control panel allows users to set centrifugal parameters such as speed, time, temperature, etc., and monitor the working status of the equipment. Some models are also equipped with touch screen interfaces that support preset program storage, making it easy to perform repetitive experiments.

4. Cooling system

For centrifugal operations that require a low-temperature environment, the cooling system is particularly important. It reduces the temperature inside the chamber through refrigerant circulation, maintaining sample activity or preventing thermal sensitive substances from denaturing. An efficient cooling system can reach and maintain the required temperature in a short period of time.

5. Safety protection device

Safety is always the primary consideration for laboratory equipment. The device is equipped with various security measures, such as an imbalance detector, automatic door lock, emergency stop button, etc. When an abnormal situation is detected, these devices will immediately trigger an alarm and shut down to avoid potential hazards.

6. Sample container

Sample containers, such as centrifuge tubes or bottles, come in various materials (such as plastic and glass), and it is crucial to choose the appropriate specifications and materials according to experimental needs. The correct loading method is equally important, ensuring that all samples are evenly distributed and weight matched to reduce vibration and imbalance risks during centrifugation.

In summary, familiarizing oneself with the functional characteristics of various components of laboratory small centrifuges can not only help researchers better complete experimental tasks, but also be an effective means of ensuring laboratory safety. Regular inspection and maintenance to ensure that it is in good working condition are equally important for extending its service life and improving work efficiency.