Beckman Type 75TI 8 Position, 75,000 RPM, Fixed Angle Centrifuge Rotor

Description

Beckman Type 75TI 8 Position, 75,000 RPM, Fixed Angle Centrifuge Rotor
Description:
This is a Beckman Type 75TI 8 Position, 75,000 RPM, Fixed Angle Centrifuge Rotor in excellent condition.
O-Rings on these rotors may or may not be present.  If they are shown in the pictures, they are included.  But O-Rings are a consumable and they may need to be replaced.  Please keep this in mind when making the purchase.
Specifications:
Maximum speed . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 75 000 rpm
At
r
max (91.9 mm) . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 502 000
×
g
k
factor at maximum speed . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 35
Number of tube cavities . . . . . . . . . . . . . . . .. . . . . . . . . . . . . . . . . . . . . 8
Number of Tubes × Nominal Capacity (mL) of Largest Tube . . 8 x 13.5
Nominal tube dimensions (largest tube) . . . . . . . . . . . .. . . 25
×
89 mm
Nominal rotor capacity . . . . . . . . . . . . . . . . . .. . . . . . . . . . . . . . . 108 mL
Rotor material . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . titanium
The Type 75 Ti, rated for 75 000 rpm, is a fixed angle rotor designed to centrifuge up to eight tubes at a 23-degree angle to the axis of rotation. Used in Beckman Coulter class H, R, and S preparative ultracentrifuges, the rotor develops centrifugal forces sufficient for applications including pelleting of small particles, and purification of viruses and subcellular organelles using sucrose gradients. Up to 312 mL of sample and gradient can be centrifuged per run. The rotor is made of titanium and is finished with black polyurethane paint. The aluminum lid and handle are anodized for corrosion resistance. The handle is interchangeable with the Type 70.1 Ti rotor handle but no others. O-rings made of Buna N rubber in the lid and handle maintain atmospheric pressure inside the rotor during centrifugation, if they are properly lubricated. The lid is a patented design that seats on the rotor body so that centrifugal force aids sealing. Four small holes in the lid provide a temporary vent, preventing pressure build-up and extrusion of the large lid O-ring in the event of leakage. Because of the weight of the rotor, drive pins are not required in the rotor drive hub cavity. For overspeed protection, a photoelectrical detector in the ultracentrifuge monitors the overspeed disk on the rotor bottom and shuts down the run if speeds exceeding 70 000 rpm are detected.