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VOLUME -27 NUMBER 12
Publication Date: 12/1/2012
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Special Features: Test and Measurement
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December 2012 Issue
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BEI Kimco Intros Latching Voice Coil Actuator
Vista, CA — BEI Kimco Magnetics, a brand of Custom Sensors & Technologies (CST), Inc., has introduced a Linear Voice Coil Actuator with a patented design that incorporates magnetic latches at each end of travel. The new design provides an excellent solution for critical applications where there is a specific "stop" position desired when the coil is de-energized.
Typical applications for the new LAH24-67-000A VCA include proportional valve control, circuit breakers, and load movement in commercial, industrial and military industries.
According to the company, one of the appeals of a traditional voice coil actuator (VCA) has been that it doesn't have to be in any particular position when the coil is de-energized; it simply "floats". However, in many applications, a certain position is required when de-energized. The new product provides this capability, thereby broadening the scope of applications where moving magnet technology is suitable, while still providing all the benefits intrinsic to voice coil technology.
The LAH24-67-000A provides 0.44-in. (11.2mm) travel with 115-lbs. (52kg) peak force and 37-lbs. (17kg) continuous force in a compact footprint of just 2.4-in. (61mm) diameter. The surprisingly high force output given its diameter size is achieved with the devices' split coil, also patented by BEI Kimco Magnetics. The split coil concept (in this case five coils) like using multiple actuators in parallel, allowing the force to multiply without increasing the stroke.
The new VCA incorporates all the inherent advantages of voice coil technology including direct-drive, hysteresis-free operation for highly accurate motion. Other advantages of this type of technology include high acceleration, absence of commutation, and excellent resolution limited only by the encoder used for feedback.
Contact: BEI Kimco Magnetics, 1499 Poinsettia Avenue, Suite 160, Vista, CA 92081
800-572-7560 or 760-597-7042 fax: 760-597-6320 E-mail: email@example.com Web:
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