The brushless dc (BLDC) motors DIT11-15 and DIH40-49 meet the necessary specifications of individual centrifuges including operating speeds approaching 25,000 rpm. The DIT11-15 motor delivers torque levels of 3 oz-in, is 1.1-in diameter by 1.28-in axial length and incorporates integral drive electronics for a more simplified external control scheme. The DIH40-49 design is capable of power levels approaching 500 W in a size of 4-in diameter by 4.9-in axial length. These two brushless motors provide low noise characteristics that are achieved through precision rotor system design methodologies and bearing selection.
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