This Beckman JA-20 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-20 Fixed-Angle Aluminum Rotor, 8 x 50 mL, 20,000 rpm, 48,400 x g JA-20 Fixed-Angle Rotor, Aluminum, Biosafety Lid Major applications: Harvesting bacteria and cell membranes, processing tissue homogenates, separating cell particulates. For use in Avanti J Series centrifuges Product Specifications Platform Avanti Rotor Type Fixed-Angle (High Performance) Maximum RPM 20,000 rpm k-Factor 770 Nominal Capacity 400 mL rMAX 108 rMIN 32 rAV 70 mm Materials Anondized aluminum