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The Beckman Coulter JA-20.1 Fixed Angle Rotor is designed to centrifuge up to thirty-two 15-mL tubes in two concentric rows at a 23-degree angle. Used in Beckman Coulter J2 series, J6 series, and Avanti J series centrifuges, the rotor develops centrifugal forces that can efficiently pellet subcellular particles, bacteria, algae, and chloroplasts, or in short-column banding of viruses and subcellular particles. Up to 480 mL of gradient and sample can be centrifuged per run.

Specifications:
- Maximum speed: 20,000
- Tube cavities: 32
- Nominal rotor capacity: 480 mL