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Scientiquipp provides certified fixed-angle and swing-out rotors for all centrifuge models, built from high-performance alloys and traceable by batch number. Designed for high speed and capacity, these rotors support demanding lab protocols and continuous use at maximum speed and +4°C. They require little maintenance, last over 25,000 cycles, and are available for current and legacy lines.
Fixed-angle rotors feature a medium pathlength, a fast run time and excellent resolution. Tubes are held at a constant angle during spinning — typically between 22°–45° from vertical. They're commonly used at higher speeds, for small to large volumes, and for pelleting applications such as bacteria and yeast to recover the pellet and remove particles from a suspension. They're also used for isopycnic banding of DNA. When pelleting, the pellet ends up at the outer bottom wall of the tube, allowing for easy collection. A fixed-angle rotor is ideal for gaining easy access to the pellet.
Batch Traceable
Guaranteed structural integrity for over 25,000 runs.
Continuous use at maximum rated speed, +4°C stability.
Swinging-bucket centrifuge rotors feature a full pathlength, slow run time, and excellent resolution.
The swinging bucket rotor allows the tube to change angle during the run. The buckets are vertical when stopped and horizontal when running. The parallel geometry of the swinging buckets allow the sample to move through the density gradients without interruption, unlike fixed-angle geometry, where the sample hits the wall and smears, which can compromise the separation.