Aerotech’s ARA1000 rotary actuator represents a significant
breakthrough for applications such as flat panel display processing
that require articulation for large payloads. Multi-axis systems
with high load inertia can suffer from mechanical instability
that limits total machine throughput. The ARA1000 eliminates this
problem through a proprietary design that significantly increases
stage stiffness. The ARA1000 incorporates a standard 57.2 mm aperture
which allows for easy pass-through of vacuum lines. The tabletop
includes a standard mounting pattern that allows for easy chuck
mounting.
Superior Design
The ARA1000 utilizes large air-bearing surfaces for high stiffness
and load capacity in a low profile design.
Cable management is a snap with integral motor power and feedback
connectors. Because the ARA1000 is a self-contained unit, it can
be integrated easily into multi-stage stacks. Either a service
loop or an integrated Aerotech cable management system (CMS) can
be provided for a highly reliable solution.
Brushless Direct-Drive
To maximize positioning performance, the ARA1000 utilizes Aerotech’s
S-series brushless, slotless motor. 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.
Since it is a slotless, ironless design, there is zero cogging,
meaning that there is absolutely no torque ripple. This makes
the ARA1000 ideal for applications requiring outstanding contoured
motion or precise incremental steps. Zero backlash makes the ARA1000
the ideal solution for applications requiring frequent directional
changes.
Accurate Positioning
Performance is assured with a 150-line-per-degree encoder that results
in 0.012 arc sec resolution. The motor and high-performance rotary
encoder are directly coupled to a common shaft.
Flexible Configurations
Aerotech manufactures a wide range of servo amplifiers and advanced
controllers to provide a complete, integrated package.
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