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Linear Motor Stage from Aerotech

★ By Editor Leave a Comment

The ALS130H, with its sub-nanometer resolution, bi-directional repeatability, and low-velocity performance is the unparalleled solution for high performance test, measurement, inspection, and other demanding applications. The ALS130H employs a center-driven, non-cogging linear motor as the driving element. Since the linear motor is a direct-drive device, there is no backlash, windup, or “stiction” normally associated with a lead screw or ball-screw drive. The moving magnet track design eliminates the need for cable management and further improves long-term reliability.

aerotech als linear stage.png

The linear motor drive also offers the advantage of higher speeds and accelerations. The compact yet powerful linear motor drives the ALS130H to a peak unloaded acceleration of 1 g and a maximum velocity of 300 mm/s. The result is a high-performance stage with outstanding throughput that significantly outperforms comparable high-accuracy screw-driven stages.

Exceptional Resolution
Outstanding step-to-step resolution is critical for alignment applications. The ALS130H meets this demand with a resolution of 0.5 nm. The direct-drive linear motor allows the ALS130H to make precise, small resolution steps, which is particularly important in alignment applications where step accuracy is critical.

Superior Geometry
The ultra-stiff construction and compact two-piece design result in a stage with unmatched geometrical tolerances. Straightness and flatness for the standard ALS130H is <±2 µm over the entire travel.

Smooth TravelThe ALS130H utilizes precision anti-cage-creep cross-roller bearings for the smoothest motion. Since neither the bearing system nor the drive system utilize any recirculating elements, the ALS130H exhibits the ripple-free motion required for high-precision scanning and inspection applications.

www.aerotech.com

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