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You are here: Home > News- Rotary Tables ACR250

News- Rotary Tables ACR250

DIRECT DRIVE ROTARY TABLE ACCURING ACR-250 Large center aperture 254 mm Low profile 68 mm	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.
	Accurate Positioning Performance is assured with encoder resolutions up to 0.18 arc sec. The motor and ring encoder are directly coupled to a rotating shaft. The absence of gear trains and mechanical couplings eliminates position errors caused by hysteresis, windup or backlash. As a result, accuracy of ±5 arc sec and bi-directional repeatability of ±0.5 arc sec are attainable.
	Flexible Configurations IntelLiDrives offers a wide range of servo amplifiers and advanced controllers to provide a complete, integrated package.
Features low profile high resolution precision bearings large center aperture direct drive brushless motor can be mounted in any orientation	Specifications torque 115 to 350 Nm resolution to 0.18 and 0.36 arc-sec speed 200 rpm accuracy 5-20 arc-sec table height 68 mm clear aperture 254 mm

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