Conventional rotary table ACR-250

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AccuRing series direct-drive rotary tables (DDR) provide superior angular positioning and velocity control with exceptionally large apertures. Advantage of AccuRings Large aperture rotary tables with zero backlash, and no gear wear or gear vibration are now available. Direct drive AccuRings are significantly faster than worm and gear drives. System accuracy and repeatability of the stage will be maintained over time. Higher accuracy and no backlash allow customers to produce more accurate and consistent products. Applications for the AccuRings rotary tables include single and multi-axis laser testing, antenna testing, inertial navigation device testing, photonic component alignment, high-accuracy laser machining and precision wafer inspection. These rotary stages can also be configured as multi-axis gimbals. High Speed Conventional transmission based rotary tables with similar apertures and payload capacity operate only to 10 rpm or less. AccuRing direct-drive stages have been tested to 300 rpm continuous rotation. Superior Mechanical Design Angular contact bearings are used to maximize performance with respect to wobble, moment stiffness, and rotating friction. A precision-machined rotating shaft further minimizes wobble. Brushless Direct-Drive To maximize positioning performance, AccuRing Series direct-drive rotary tables utilizes brushless modular RotoLinear motor technology. This motor has all of the advantages of a brushless direct drive motor – no brushes to wear, no gear trains to maintain, and high acceleration and high speeds. This makes the AccuRings ideal for the applications requiring contoured motion, smooth scan velocity and precise incremental steps.