Allegra® 6R Series Centrifuges, Beckman Coulter (rotor must be ordered separately). The Allegra® 6 series centrifuges provide expanded versatile, large volume performance in a compact unit. Accepts the exclusive ARIES™ GH-3.8 and GH-3.8A rotors with smart balance technology that automatically identifies and corrects imbalances up to ±50 grams. The horizontal and fixed angle rotors (sold separately) handle a wide range of tubes, bottles, plates, and bloodbags. Convenient analog controls and digital speed display simplify operation. 5,710 g (6,100 rpm) with Fixed Angle Rotor 4,560 g (4,730 rpm) with Swinging Bucket Rotor Accepts Samples from 1.5 to 750 mL Exclusive Rotor with Automatic Rotor Imbalance Equilibrium System (ARIES™)Smart Balance Technology Spins Tubes, Bottles, Microplates, Specialty Bottles, and Blood Bags.