Centrifugation utilizes centripetal force to drive the separation of a heterogeneous solution into supernatant and pellet. The modern centrifuge amplifies the force of gravity by spinning solutions at a high rate of speed to increase the rate of sedimentation. During this process, materials with a high particle density will sediment towards the axis of centrifugation (down the tube), while materials with a lower particle density will sediment away from the axis of centrifugation. For example, bacterial cells in suspension have a high particle density and will tend to settle to the bottom.
A process that normally takes hours or days under the force of normal gravity (1 g) can be shortened to minutes when a force of 10,000 g is applied with a relatively inexpensive and easy-to-use piece of equipment. The faster the centrifuge turns (i.e., the higher the RPM), the faster the faster the sedimentation. Relative centrifugal force (RCF) is another way of expressing the gravitational force (g-force), or the turning of the rotor, which allows researchers to easily separate tissues, cells, organelles, and macromolecules for further investigation.
The centrifuge incorporates one of two types of rotors, which house the tubes where separation occurs. Fixed-angle rotors hold tubes at a stable angle (typically 45°) relative to the axis of rotation. A swinging-bucket rotor swings out when centripetal force is applied and holds the cells at an approximate 90° angle relative to the angle of rotation. Recall that more dense materials will separate towards the angle of the centripetal force. Therefore in swinging-bucket rotors, the pelleted material will form at the bottom of the conical centrifuge tube whereas tubes processed in a fixed-angle rotor will form sedimentation on the side. This could be problematic if the solids get caught in the angle of the tube.
Centrifuge accessories such as fixed-angle and swinging bucket rotors, adapters, and buckets
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33种产品
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离心功能
Floor Model 4L Megafuge ST4F and ST4F R Plus Centrifuges by Thermo Fisher Scientific
地板模型,IVD认证的4L独立式巨型ST4F和ST4F R Plus离心机在通风和冷藏模型中,由Thermo Fisher Scientific
Hermle Z32 HK High-Speed Refrigerated Centrifuge
Hermle’s compact high-speed refrigerated centrifuge has automatic rotor recognition. Recall stored protocols using the microprocessor control with LCD display.
Thermo Fisher mySPIN 12 Mini Centrifuge
mySPIN Mini Centrifuges have a quiet and low vibration operation making them ideal micro volume benchtop centrifuges. mySPIN 12 models include safety feature adjustable speed and a back-lit display for rpm or RCF.
Thermo Fisher Scientific Heraeus Megafuge 8台式离心机
Heraeus Megafuge Benchtop Centrifuge from Thermo Fisher is designed for clinical and research labs. Use control panel to process samples in tubes and microplates.
Mini/Micro Centrifuges by Benchmark Scientific and Thermo Fisher
Compact Benchtop Centrifuges from Thermo Scientific
Benchmark MyFuge 12 Mini Centrifuge Quasar Instuments
Mini/Micro Centrifuges by Benchmark Scientific and Thermo Fisher
Ventilated and refrigerated floor standing 4-liter Multifuge X4F Pro Series Centrifuge by Thermo Fisher Scientific saves on tabletop space; 100-program memory a|1717-PP-04displayedFloor standing Multifuge X4F Pro Series Centrifuges by Thermo Fisher Scientific
Cell culture and blood tube centrifuge packages for 1.6L Megafuge ST1 and ST1R Plus models include TX-400 or H-Flex 1 rotors with biocontainment lids and adapte|6708-PP-01displayed1.6L Megafuge ST1 and ST1R Plus Centrifuge Packages with swinging bucket rotor by Thermo Fisher Scientific
4 l通风、冷藏Multifuge X4和X4R Pro Centrifuges by Thermo Scientific with a 100-program memory and a touchscreen LCD display; FDA listed|1717-PP-03displayedMultifuge X4 and X4R Pro Benchtop Centrifuges by Thermo Fisher Scientific
1.6L Multifuge X1R Pro Refrigerated Centrifuge by Thermo Fisher Scientific with a touchscreen interface, 100-program memory and a 4 x 400 mL capacity|1717-60displayedIVD Certified Multifuge X1R Pro Benchtop Refrigerated Centrifuge by Thermo Fisher Scientific
4-Liter Megafuge ST4 and ST4R Plus Benchtop Centrifuges by Thermo Scientific with AutoLock rotor exchange spin up to 196 x 5/7 mL blood tubes|1717-PP-02displayedMegafuge ST4 Plus系列台式离心机由Thermo Fisher Scientific
1.6L Megafuge ST1/ST1R Plus Centrifuges by Thermo Scientific have a 15,200 maximum rpm and 6-program memory|6707-PP-14displayed台式Megafuge ST1和ST1R Plus离心机Thermo Fisher Scientific
紧凑型11英寸单元,带有无维护,感应转子,AM高级微处理器和13,500 rpm的最大rpm拟合常见的微管;在115V和230V模型中Benchtop Z207-M Microcentrifuge by Hermle
Cold room safe MC-24 Touch High Speed Microcentrifuge by Benchmark Scientific with a full-color touchscreen accepts microtubes and PCR tubes/strips|2829-PP-15displayedMC-24触摸基准科学的高速微量离心机
Models with 12-tube or 24-tube rotors have a max speed of 3,000rpm (centrifuge); 1200rpm (wash); 350 to 500rpm (decant)|1108-PP-07displayedCW3 Centra Cell Washers by Thermo Fisher ScientificCompact blood cell washers with automated cycling reduce the risk of cross-contamination and process 24 samples in three minutes; features a digital display and alerts
Thermo Fisher Scientific general product manager, John Collings on the compact benchtop centrifugesCompact Benchtop Centrifuges from Thermo ScientificShort video demonstrating the benefits of the compact benchtop centrifuge
Benchmark My Fuge 12 Mini Centrifuge being shown in a short video demonstrationBenchmark MyFuge 12 Mini Centrifuge Quasar Instuments简短的视频演示了基准12迷你离心机的工作方式
Choose from a wide range of microcentrifuges ideal for quick spin down of tubes, PCR tubes and microplates; rotors and adapters sold separately|2812-PP-01displayedMini/Micro Centrifuges by Benchmark Scientific and Thermo FisherMyFuge迷你离心机(显示)包括用于微管和PCR管/带的转子;MyFuge 5,12,Stripspin 12,Platefuge MC-12高速和Myspin型号也可从基准科学提供
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