The JA-14.50 fixed-angle rotor is designed to hold up to sixteen 50-mL tubes at a 35-degree angle. Used in Beckman Coulter Avanti J series centrifuges, the JA-14.50 rotor develops centrifugal forces that can efficiently pellet cells, bacteria, and food products; separate proteins, viruses, and subcellular fractions, and do phase separation and binding studies.