Aerotech’s AVL1000 represents a significant breakthrough
for applications such as flat panel display processing that require
Z articulation for large payloads. Multi-axis systems with high
load inertia can suffer from mechanical stability problems that
limit total machine throughput. The AVL1000 eliminates this problem
through a proprietary design that significantly increases stage
stiffness. The AVL1000 has a wide footprint that increases stiffness
by separating the bearing elements as far as possible. This design
also incorporates mechanical elements that fully constrain the
carriage and virtually eliminate undesired motion.
Superior Mechanical Design
The AVL1000 utilizes a wedge design mounted on high-stiffness
bearings to achieve high lateral and rotational rigidity. All
elements of the AVL1000 were selected to operate in a 24/7 industrial
environment and, unlike screw- or piezo-based vertical stages,
the AVL1000 requires no maintenance and will ensure years of trouble-free
operation.
Brushless Direct-Drive
To maximize positioning performance, the AVL1000 uses Aerotech’s
BLM series brushless, slotless linear motor. This motor has all
the advantages of a brushless direct-drive motor — no brushes
to wear, no gear trains to maintain, and high acceleration and
high speeds. The AVL1000 is ideal for high-bandwidth autofocus
applications because the motor produces no cogging force.
High Accuracy
Positioning performance is assured by using a precision linear
encoder that results in 0.5 nm resolution. The motor and encoder
are directly coupled together, increasing the accuracy of the
stage by eliminating mechanical hysteresis.
Flexible Configurations
Aerotech also manufactures a wide range of servo amplifiers, advanced
controllers, as well as a full line of complementary stage systems
to provide a complete, integrated package.
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