The AVL125 represents a significant breakthrough
in vertical alignment of high-precision components. This unique
device incorporates the best high-performance features: high speed
(>100 mm per second), high resolution (9 nm), superior in-position
stability, and high accuracy in one compact package.
Its superior noncontact linear motor drive employs a high-accuracy
encoder for direct position feedback. When combined with Aerotech's
MXH multiplier, it offers an industry-leading 9 nm resolution
in addition to high speed and accuracy.
The design of the AVL125 provides vertical, elevator-like motion,
often necessary in confined spaces. The horizontal payload-mounting
surface gives designers clear access to all sides of the stage,
which is important in automated handling of payloads by overhead
robots.
Bearing elements are recirculating ball style for maximum stiffness
and reliability. These are mounted on an optimized base and wedge
assembly for stiffness and low mass/inertia, enhancing dynamic
performance.
The critical elements of the AVL125 were selected to operate in
a 24/7 industrial environment and, unlike screw- or piezo-based
vertical stages, the AVL125 requires no maintenance and will assure
years of trouble-free operation.
The AVL125 includes a pneumatic counterbalance to hold position
against gravity with very little motor current. This minimizes
thermal heating while holding position.
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