Miniature linear actuator used in locking system
A
PBC Linear product story
Edited by the Engineeringtalk editorial team
May 15, 2009
A medical supply company has incorporated the MLA miniature linear actuator from PBC Linear into a cabinet locking system.
Using its smallest model, PBC Linear helped the medical company design an automated keypad lock for a transportable medical storage unit.
To maintain control over the stock of medicine, tools and other delicate devices used, the medical supply company required a linear positioning system small enough to fit into its compact drawers and installed into a keypad lock system.
The lock relied on the precise smooth and quiet linear motion to successfully operate the locking pin in and out of position.
Traditionally in these systems, a solenoid is used to operate the locking mechanism; however, the clinic found solenoids to be too inaccurate to reliably and repeatedly perform the necessary tasks.
Compact and robust, the MLA measures 28mm x 32mm in width and height, with lengths available as short as 190mm.
The MLA's profile is precision machined using PBC Linear's SIMO (Simultaneous Integral Milling Operation) process.
The SIMO process utilises multiple mills working together to machine all the actuator's critical surfaces simultaneously to ensure accuracy and smooth linear motion at no added cost.
This provides a low-cost straight actuating system without bow or twist.
The MLA is also equipped with a self-lubricated polymer slider to support the actuator's compact design and facilitate stable linear guidance.
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