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BEI Kimco Magnetics, a company of Custom Sensors &
Technologies (CST), Inc., has announced an exciting breakthrough in
miniaturization for cylindrical shaped voice coil actuators with the
introduction of the Model LA05-05-000A. The actuator measures only 0.5 in.
diameter by 0.5 in. length at mid-stroke, approximately 0.5 in. smaller than
typical models on the market. This size reduction offers engineers a new
solution in meeting tight packaging constraints for medical and industrial
applications.
"To our knowledge, the new actuator is unique—there is no other cylindrical VCA this small on the market," says Miguel Hermosillo, BEI Kimco's applications engineer for VCAs. "With its tiny size, customers can now use a VCA in spaces they previously couldn't, opening a whole new realm of design options. Previously an application may have required a BLDC motor with other components to accomplish what the LA05-05-000A can now do with a single component."
The miniature actuator provides outstanding performance characteristics including a force of 2.5 ozf, a total stroke of 1.02 mm, and an actuator constant of 1.04 N/sqrt (watt). The new actuator features direct drive, hysteresis-free, and cog-free operation while delivering high-acceleration and infinite position resolution, particularly important in mission critical applications where precision is paramount.
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