Faster than
a ball screw, more accurate than a belt drive, the LMA series
actuators harness the speed, acceleration, and accuracy capability
of a linear motor for the latest in high-throughput linear actuator
technology. This modular stage is ideal for pick-and-place machines,
gantry axes, shuttle stages, assembly machines, or as a general-purpose
positioner. LMA series actuators integrate the mechanical and
electrical components to eliminate the guesswork involved with
choosing bearings, motors, encoders, and the other components
required for a linear motor system.
With a no-load acceleration of 3 g and a top speed of 3 m/s, LMA
series actuators are the ideal solution to increase throughput.
A high-power brushless linear servomotor drives LMA actuators
to speeds and resolutions that are impossible with a ball screw.
The feedback
device is a directly coupled, high-accuracy linear encoder. Since
the encoder is mounted in close proximity to the work surface,
accuracy problems associated with pitch, roll, and yaw are greatly
reduced. Repeatability is ±5 µm over the length of
travel. The linear encoder is a robust, noncontacting scale with
resolution options ranging from 0.1 µm to 1.0 µm.
For applications
requiring integration into a custom machine, an OEM version is
available. The OEM version offers all of the same performance
characteristics as the standard actuator, but allows the user
to eliminate or modify different characteristics of the actuator.
For example, the user can provide their own cable management system,
choose a different bearing system, or customize the mounting holes.
The LMA's
linear-motor-drive-system consists of two noncontacting parts,
making the actuators virtually maintenance-free. As a result,
there is no backlash, windup, wear, or maintenance that is normally
associated with contacting-type systems such as ball screws or
belts.
For more information, please contact
Aerotech, Inc., 101 Zeta Drive, Pittsburgh, PA 15238, Phone: 412-963-7470,
Fax: 412-963-7459, e-mail: sales@aerotech.com.
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