Laboratory Centrifuges

Centrifuge is an equipment in which liquid or solid particles of varying densities are separated by rotating them in a horizontal circle inside a tube. Denser particles tend to move along the length of the tube to a larger radius of rotation, moving the less dense particles to the other end. The force applied on the rotating particles in a liquid is described in terms of relative centrifugal force. Different centrifuges are rated by their RCFs .

Centrifuges are used in various laboratories. Laboratory centrifuges have varieties of uses in chemistry, biology, and biochemistry laboratories for separating and isolating solids from liquids in a suspension. A laboratory centrifuge is driven by a motor, causing the liquid samples to rotate at higher speed. The laboratory centrifuges come in two different sizes. The larger ones are known simply as centrifuges while the smaller centrifuges are known as micro-centrifuges or microfuges.


We cater to wholesale supply of laboratory centrifuges, analytical laboratory centrifuges, preparative laboratory centrifuges, microcentrifuge, table top centrifuges, mini microcentrifuges etc.Click here to send enquiry

Types of Laboratory Centrifuges
The most commonly used types of laboratory centrifuges are as follows:

• Preparative Laboratory Centrifuges : The preparative centrifuges are used to isolate specific particles. They are classified into two types: density and differential. Density centrifuges are used to separate two fluids of different densities. The mixture of liquids is rotated inside a rotating container, the denser fluid is pushed to the wall of the container while the lighter fluid is forced toward the center. Differential centrifuges isolate particles from a liquid medium or separate particles of different masses into separate fractions of the liquid.
• Analytical Laboratory Centrifuges : These centrifuges are used to measure the physical properties of particle, such as molecular weight and sedimentation coefficient.
• Microcentrifuge: This type of laboratory centrifuge, which is smaller in size compared to the general centrifuge. It is also called microfuge. Microcentrifuge works on the principle of sedimentation, where the centripetal acceleration is used to separate substances of different densities. Due to their small sizes, microcentrifuges are perfect for school and college uses. These microcentrifuges are low cost and specifically designed for pupils access to 'cutting-edge' biotechnology work.
• Table top or bench top centrifuges: They are used in small laboratories and research centers. These centrifuges are small in sizes and can be easily moved from one place to another. The table top centrifuges are equipped with all the latest technologies. The bench top centrifuges have fixed rotor, provided with variable number of tube holders.
• Mini Microcentrifuges: Mini microcentrifuges are space saving centrifuges, which have small diameters. They are able to fulfill a variety of applications, including microfiltration, quick spin downs, and low speed separations. Operating a mini microcentrifuge is extremely simple. Switches are provided to control the speed of rotor and to release the lid lock. Power switch can be used to start and stop operation.
Centrifuge Accessories
Centrifuge Tubes
Centrifuge tubes are used for putting samples or specimen in the centrifuges. Centrifuge tubes are chemically resistant to the solvents used. They should be able to withstand the maximum centrifugal force and temperature. Centrifuge tubes are made from glass as well as plastics. Glass Centrifuge tubes are made from high quality glasses. The glass tubes are expensive than the plastic Centrifuge tube and they don't perform well at higher centrifugal forces. Plastic Centrifuge tubes are made from polystyrene or polypropylene. They are found in both variations, disposable as well as non-disposable. These tubes are provided with covers to prevent the samples from spilling.

Micro Centrifuge Sample Pestle
The sample pestles used in micro centrifuges are perfect for resuspending precipitates or lyophilized products. They can also be used for homogenizing samples in a microcentrifuge tube. The pestles are made of PTFE mounted on stainless steel shafts. These pestles may be hand held or mounted in a motorized chuck.

Double Ended Pestle
The double ended pestles can be used from both ends for the same purposes as the simple pestles. These double ended pestles are mounted on a stainless steel shaft. At both the ends, nylon pestles are attached to the shaft. They may be hand held or mounted in a motorized chuck.

Microcentrifuge Tube Racks
The microcentrifuge tube racks are ideal for holding microcentrifuge tubes. These racks are usually made of polypropylene. They are stackable and don't float in water bath. These microcentrifuge racks have sturdy construction. The capacity of holding microcentrifuge tubes cover a wide range. They capacity can be as small as 5 to hundreds of tubes.