Sorvall SM-24 fixed angle (28 degrees) aluminum centrifuge rotor. Has max speed of 20,000 RPM. Has a max RCF of 49,300 x g and 39,700 x g for the outer and inner row, respectively. Can hold 24 tubes. For use in Sorvall RC-2, RC2-B, RC-5, and RC-5B super-speed refrigerated centrifuges. Also, can be used Sorvall SS-3 automatic super-speed centrifuges with the exception of the GS-3.