Laboratory Centrifuges
JP Selecta laboratory centrifuges: universal, micro and refrigerated. Up to 15,000 rpm. Interactive configurator.
Product families (5)
Frequently asked questions
How do I choose the right laboratory centrifuge?
The choice depends on three critical factors: the required speed (RPM or RCF), the total volume and the type of containers (1.5 ml tubes, Falcon tubes, blood bags, etc.), and whether your samples are thermolabile (in which case a refrigerated centrifuge is essential). Our interactive configurator simplifies the selection.
How does the configurator work?
Our centrifuge configurator is an interactive tool where you select the sample type (blood, urine, cultures, etc.), the required capacity and speed. The system instantly shows the compatible models and helps you request a tailored quote.
What is RCF and how does it relate to RPM?
RPM (Revolutions Per Minute) indicates the motor's spin speed, while RCF (Relative Centrifugal Force), measured in × g, represents the real force applied to the sample. RCF is the universal value used in scientific protocols because it depends on both the speed and the radius of the rotor.
What is the difference between a universal centrifuge and a microcentrifuge?
The universal centrifuge is a versatile unit designed to process medium-to-large volumes with various rotor types and includes refrigeration options. The microcentrifuge is a compact, high-speed unit (up to 15,000 rpm) intended exclusively for small volumes in microtubes (0.2 - 2 ml), ideal for molecular biology applications.
Do JP Selecta centrifuges include rotors?
We offer a wide range of interchangeable rotors (angled and swinging) and adapters sold separately. Many of our heads are compatible across different models of the same line, which optimises the investment and allows you to adapt the equipment to new applications without replacing the centrifuge.
What types of rotors exist and when should each be used?
There are two main types: Angled rotors: Hold tubes at a fixed angle (25°-45°). Ideal for fast sedimentation at high speeds and usually used with closed tubes. Swinging rotors: Swing the buckets horizontally during operation, producing a more compact pellet and a cleaner supernatant. Recommended for clinical samples, blood components and density gradients.
How often should a laboratory centrifuge be calibrated?
To guarantee traceability and compliance with ISO/[GMP](https://www.fda.gov/drugs/pharmaceutical-quality-resources/current-good-manufacturing-practice-cgmp-regulations) standards, annual calibration of speed, time and temperature (in refrigerated models) is recommended. At JP Selecta we offer certified calibration with [ENAC](https://www.enac.es/)-traceable documentation.