Intellidrives direct-drive rotary stages rotate up to 300 rpm

Intellidrives AccuRing series direct-drive rotary stages

AccuRing series direct-drive rotary stages feature up to 300 rpm continuous rotation, angular contact bearings, and a precision-machined mounting shaft to minimize wobble. The large aperture stages use brushless modular RotoLinear motor technology and provide encoder resolutions up to 0.18 arc-sec for position accuracy.
Philadelphia, PA;

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Large center aperture 254 mm
Low profile 68 mm

AccuRing series direct-drive rotary stages provide superior angular positioning and velocity control with exceptionally large apertures.

Advantage of AccuRings
Large aperture rotary stages 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 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 stages  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.

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

low profile
high resolution
precision bearings
large center aperture
direct drive brushless motor
can be mounted in any orientation


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