Beckman JS-13.1 Swing-Out Rotor - 6 x 50mL

The Beckman JS-13.1, rated for 13,000 rpm, is a swinging bucket rotor designed to centrifuge up to six 50-mL tubes. Used in Beckman Coulter J2, J6, and Avanti J centrifuges, the rotor develops centrifugal forces that efficiently process tissue homogenates, cells, and subcellular particles by either pelleting or density gradient separations. Short-column methods (such as partially filled tubes) may be used to shorten run times.

The rotor and lid are made of aluminum—the rotor is painted black and the lid is blue-anodized. The knob in the rotor lid secures the rotor to the drive hub. The air pressure differential caused by the rotor as it spins keeps the lid in place.

A plastic strip (see Figure 1) fits around the edge of the rotor windshield to protect the edges of the windshield and cover. Pins in the rotor drive hole mate with grooves in the centrifuge drive hub (older model centrifuges), or with drive hub teeth (new model centrifuges), to prevent the rotor from slipping during acceleration and deceleration. 

** SEE LINK TO MANUAL FOR MORE INFORMATION