Centrifuges
Centrifuges separate sample components by applying centrifugal force. They are used for applications ranging from routine sample preparation and blood processing to high-speed molecular and biochemical separations.
LabSPX supplies microcentrifuges, benchtop centrifuges, floor-standing centrifuges, refrigerated centrifuges and high-speed centrifuges throughout the Benelux. The appropriate system depends on the required RCF, sample volume, rotor type, temperature control and daily throughput.
What are the different types of centrifuges?
Centrifuges differ in their physical format, sample capacity, achievable centrifugal force and temperature-control capabilities. Compact microcentrifuges process small-volume tubes, while larger benchtop and floor-standing systems accommodate higher sample volumes and greater throughput.
Some categories overlap. A refrigerated centrifuge may be either a compact benchtop model or a large floor-standing system. High-speed centrifuges are also available in several formats. The best choice therefore depends on both the centrifuge configuration and the requirements of the separation method.
Microcentrifuges are compact instruments designed for small-volume tubes. They are commonly used for rapid pelleting, nucleic-acid preparation, sample clarification and other molecular biology workflows.
Their small rotors can reach relatively high centrifugal forces while occupying little bench space. Depending on the model, they can support standard microtubes, capillary tubes, PCR strips or small clinical tubes.
Benchtop centrifuges provide more capacity and rotor flexibility than most microcentrifuges while remaining suitable for installation on a laboratory bench.
They can support different tube sizes, bottles and rotor configurations. This makes them suitable for general sample preparation, clinical testing, cell processing and routine research applications.
Falcon benchtop centrifuge
Designed for high-volume sample processing in medical, biochemical, industrial, and research laboratories
Floor-standing centrifuges are designed for larger sample volumes and higher-throughput workflows. Their larger cabinets can accommodate high-capacity rotors and larger sample containers.
These centrifuges are commonly used in blood processing, pharmaceutical laboratories, biotechnology and facilities processing large sample batches.
CELLSEP 6/720R
Floor-standing refrigerated centrifuge for routine and production laboratory applications
Refrigerated centrifuges control chamber temperature during operation. This helps protect temperature-sensitive samples from the heat generated during prolonged or high-speed centrifugation.
Refrigeration is particularly relevant when working with live cells, proteins, enzymes, nucleic acids and other biological materials whose stability may be affected by temperature changes.
Micro Centaur R centrifuge
Refrigerated microcentrifuge that delivers temperature-controlled performance
CELLSEP 6/720R
Floor-standing refrigerated centrifuge for routine and production laboratory applications
High-speed centrifuges generate greater centrifugal forces for applications that require the separation of smaller particles or more demanding sample preparation.
The required speed should always be selected according to the method and expressed primarily as relative centrifugal force. The same RPM can produce different RCF values depending on the rotor radius.
How to choose a centrifuge
Choosing a centrifuge involves more than comparing maximum speed. The system must support the required sample format, separation force, throughput and temperature conditions.
Important selection criteria include:
- Required RCF
- Sample number and volume
- Compatible tube and bottle sizes
- Fixed-angle or swing-out rotor
- Benchtop or floor-standing installation
- Need for refrigeration
- Maximum sample capacity
- Expected daily throughput
- Rotor and adapter availability
- Safety and imbalance-detection features
Fixed-angle rotors are commonly used for efficient pelleting. Swing-out rotors are useful when horizontal tube positioning, clear sample layering or a flat pellet is required.
Applications involving cells, proteins or enzymes may require refrigeration. High-throughput workflows or large sample containers may instead require a floor-standing, high-capacity system.
Not sure which centrifuge fits your application?
Compare RCF, capacity, rotor type, refrigeration and compatible sample formats.