This Beckman JA-21 Avanti J Series Fixed-Angle Centrifuge Rotor is in used condition and is guaranteed to be fully functional. This item came from a local lab that had surplus equipment and shows some aesthetic signs of normal use. We urge customers to view all photos as they show overall condition, included accessories and useful information. Sale of unit comes with a 30-day full money back guarantee return policy. Please feel free to contact us with any questions. JA-21 Fixed-Angle Rotor- 18 x 10 mL, 21,000 rpm, 50,400 x g JA-21 Fixed-Angle Rotor, Aluminum. Major applications: Rapid, efficient separation of many samples in small volumes, such as viruses, bacteriophage, mitochondria, and nuclei. For use in Avanti J Series and J2 Series centrifuges. Product Specifications Platform Avanti Rotor Type Fixed-Angle (High Performance) Maximum RPM 21,000 rpm k-Factor 470 Nominal Capacity 180 mL rMAX 102 rMIN 45 rAV 73 mm