Introduction
Aerotech’s ANT-25LA direct-drive linear actuator is designed
and manufactured to overcome the inherent shortcomings of existing
screw-based designs.
Noncontact Direct-Drive
Only a noncontact linear motor drive with linear encoder feedback
offers the high resolution, backlash- and windup free drivetrain
essential to meet the exacting positioning requirements of nano-positioners.
This robust, high-speed actuator employs linear motion guide bearings
and a glass linear encoder equipped with home marker and optical
limits. These elements are connected directly to the output spindle
assembly which is constrained in low-friction bearings.
This directly-coupled mechanical configuration allows backlash-free
operation, industry-leading 10 nanometer resolution, excellent
repeatability, in-position stability, and positioning speed exceeding
250 mm per second. The tip of the actuator output shaft is tapped
with a standard 2 mm thread to facilitate the acceptance of threaded-ball
or clip assemblies.
Maintenance-Free Operation
The ANT-25LA linear actuator is the result of more than thirty
years of experience in designing high accuracy positioning components.
It is designed to meet the rigors of a 24/7 manufacturing environment
because the drivetrain of the actuator is a noncontact device
requiring no maintenance. It is the ideal actuator for trouble-free
fullscale production.
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