The SW 32 Ti and SW 32.1 Ti are swinging bucket rotors designed to centrifuge up to six tubes each. Used in Beckman Coulter class H, R, and S preparative ultracentrifuges, these rotors develop centrifugal forces for the separation of subcellular particles and viruses in density gradients. The rotors have a common rotor body with buckets that can be used interchangeably. Bucket and rotor body positions are numbered for operator convenience.
The rotor body and buckets are made of titanium, finished with polyurethane paint. Bucket caps are made of aluminum, anodized for corrosion resistance. Each bucket and cap assembly sets into grooves in the rotor body. O-rings, made of Buna N rubber, between each bucket and bucket cap maintain atmospheric pressure inside the buckets during centrifugation.