Centrifuge Machine - An Essential Innovation

In the laboratory, the process of centrifuge includes sedimentation that separates the particle-based on their dense, where high denser particle settles in the bottom named pellet and less dense ones float in the top named as supernatant.

 

Most of the laboratories use a device named centrifuge used in fluids separation, liquid, or gas separation, based on density. It contains a spinning vessel which spins at high speed and pushes the heavier or denser materials to the outer side of the vessel by its centrifugal force.

 

 

Benjamin robins 1707 – 1751 who invented an apparatus with whirling arm to determine drag. In 1864, Antonin Prandtl, who proposed this dairy centrifuge idea to separate cream from milk. A centrifuge is equipment that puts an object or a source in a rotational axis that is in a fixed position that applies a force perpendicular to the axis of spin. The working principle of centrifuge is based on the centrifugal acceleration results in denser particles outward in a radial direction. Objects with less dense are displaced and moved to the center. In the laboratory, the process of centrifuge includes sedimentation that separates the particle-based on their dense, where high denser particle settles in the bottom named pellet and less dense ones float in the top named as supernatant.

 

 

There are three different centrifuge designed for various applications. They are,

·         Industrial-scale centrifuges: Used in manufacturing and waste processing to sediment suspended solids, or to separate immiscible liquids. Example is diaries and products that are done with separating creams. Particles are separated to the finest level of Nano-scale, and molecules of different masses.

 

 

·         Large centrifuges: These are used in an accelerating environment and to stimulate high gravity (e.g.: high-G training for test pilots). Centrifuges with Medium sizes are used at swimming pools to drain water out of fabrics and washing machine dryers.

 

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  Gas centrifuges: Used in isotope separation, to enrich nuclear fuel for fissile isotopes.

 

A centrifuge is equipment that makes use of rotor to separate things in different applications.

·         Fixed-angle centrifuges are the designed texture that holds the sample containers at a constant angle relative to the central axis.

·         Swinging head centrifuges are in contrast to fixed-angle centrifuges that contain a hinge where the sample containers are attached to the central rotor. The samples swing outwards as the centrifuge is spun.

·         Continuous tubular centrifuges are used for high volume applications and do not have individual sample vessels.

 

LABORATORY CENTRIFUGES:

 

These are commonly used instruments with several types and models, but with various sizes, usage capabilities. These include super-speed centrifuges, preparative ultra-centrifuges, and clinical centrifuge.

 

 

ANALYTICAL ULTRACENTRIFUGES

This uses the principle devised by Theodor Svedberg that perform sedimentation analysis of macromolecules.

 

 

HAEMATOCRIT CENTRIFUGE

These are the centrifuges that are used to measure the volume percentage of red blood cells in whole blood.

 

 

INDUSTRIAL CENTRIFUGAL SEPARATOR:

To separate particles from grinding machining coolant, a liquid-like coolant filtration system is used. It is also capable of separating non-ferrous particles such as glass, graphite, silicon, ceramic, and more. This filtering process does not consume parts like filters or bags, which is environment-friendly.

 

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