Beckman Centrifuge Rotors

The fixed angle rotor, rated for 14 000 rpm, is designed to   
centrifuge up to six 250-mL containers at a 25-degree angle to the   
axis of rotation. Used in Beckman Coulter J2, J6, and Avanti J series   
centrifuges, the rotor develops centrifugal forces that can efficiently   
pellet bacterial cells from large volumes, or particles from tissue   
homogenates.    
   
The rotor body and lid are made of aluminum and are anodized for   
corrosion resistance—the rotor is black and the lid is blue. The lid   
knob secures the rotor to the drive hub.