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- Centrifuges
Centrifuges
Centrifuges
Buch & Holm has been dealing with centrifuges since 1935 and knows what it takes to provide advice, support and service for this type of equipment.
Our program covers everything from bench-top centrifuges to floor centrifuges with a capacity of up to 12 liters. Vacuum centrifuges, micro-centrifuges, mini centrifuges as well as high-speed centrifuges at speeds up to 300,000 rpm. and 70.121 x g.
What centrifuge should I choose?
- Capacity and throughput: Assess how many samples you need to run per batch and how often. Swing-out rotors provide flexible capacity for many tubes and bottles, while angle rotors typically provide higher g-forces and shorter run times. Consider future needs, so you don't outgrow the solution.
- RCF (× g) vs. RPM (rpm): It is RCF that drives the separation. Most protocols specify × g; choose a centrifuge/rotor that reaches the required RCF at reasonable RPM. Remember that RCF depends on the radius of the rotor – two centrifuges with The same RPM can deliver different × g.
- Rotor type: Swing-out for planar separation, large volumes and gentle pellets/layers; angle rotor for high g-force and fast spin-downs; special rotors for plates, hematocrit, filtration or biosafe handling. Choose lids/inserts that fit your containers exactly.
- Temperature control: Refrigerated models stabilize temperature for long runs, volatile solvents, or heat-sensitive samples. Combined cooling/heating can accelerate protocols with controlled temperature profile, while uncooled Models are ideal for quick, routine tasks.
- Safety and biosecurity: Consider aerosol-tight lids, imbalance detection, automatic lock, and certified biosafety rotors in clinical work. Proper accessories reduce the risk of spillage and contamination and increase operator safety.
- Ergonomics and noise: Noise level, door height, loading height and rotor handling affect daily comfort. Auxiliary equipment such as trolleys and insert racks improve workflow and space utilization – especially in small laboratories.
- Space and infrastructure: Check external dimensions, weight, ventilation and power requirements. Floor models provide large capacity without taking up desk space, while benchtop models can be integrated close to the workstation for shorter turnarounds.
- Compliance and documentation: Need validation, logging, user profiles or audit trails? Choose operating systems and firmware that support SOPs, locked applications, service log, and optionally network integration.
- Service and total economy: Look at available rotors/adapters, price of wear parts (gaskets, lids, filters), service intervals and response time. A well-thought-out service plan and modular accessories reduce downtime and total cost of ownership.
Use
Our range includes both simple spin-downs and advanced separations. In biology and clinic, we handle everything from pelletization of cells, bacteria and yeast to serum/plasma preparation, virus work and PCR workflows in microplates. In chemistry and analysis, centrifuges are suitable for clarifying HPLC samples, filtration through spin columns, and pre-treatment for mass spectrometry. In process and bioproduction, high-capacity, high-speed models provide stable performance during long runs, while vacuum concentrators speed up drying/concentration of sensitive samples. Whether you're in research, diagnostics, or manufacturing, we can configure the same platform for multiple tasks, reduce equipment space, and standardize SOPs across teams.
Customization, safety and service
Needs vary from lab to lab – that's why we offer custom adapters, inserts and rotors to fit your pipes and plates, including special formats and sterile single-use solutions. We advise on biosafety upgrades (aerosol-tight lids, suitable filter solutions) and assist with validation, IQ/OQ documentation and user training. Our service team handles installation, preventative maintenance, speed/temperature/RCF calibration, and quick troubleshooting to keep you focused on your business. The result is reproducible separations, longer equipment life and lower total cost.
Brands and selection
We have a wide range of centrifuges from e.g. Eppendorf, IKA, Labnet, Heathrow Scientific and Grant Instruments. It includes micro and mini centrifuges for fast spin-downs, flexible benchtop centrifuges with a wide range of accessories, as well as refrigerated and combined cooling/heating models for temperature-critical applications. In addition, there is an extensive range of rotors (swing-out and angled), insert inserts for standard and specialty pipes, plates and bottles, allowing you to scale from method development to routine operation without changing platforms.
Why buy from us?
With almost 90 years of experience, we combine professional advice with fast delivery and solid service support. We'll help you choose the right combination of centrifuge, rotor and accessories, implement it into your workflow and keep it running with scheduled service and support. That means fewer interruptions, higher reproducibility, and a set that can grow with your needs.