Motorized Adjustment Screws

   The 840 series of encoded actuators incorporate a non-rotating tip to ensure accurate submicron positioning.  The 840 series actuators' industry standard 0.375-inch nose mount will fit into any device that has a standard manual micrometer.  The 9/16 hex lock nut can be used to attach to translation stages or for bulkhead mounting in flat panel applications.

   840 actuators are a direct replacement drive for existing micrometers or TPI series screws on 331, 100cr, and 200cr stages.  These actuators can be driven with all of our e series and MC2000 controllers and drive the actuator through a closed loop interface between the controller and the motor encoder.  The closed loop connection ensures 0.2 μm and 0.1 μm resolution, respectively.  The encoder coupling also enables the use of the DR1000 digital readout for repeated or relative positioning requirements.

   Travel limit switches are designed inside of the device so that no unnecessary force is imposed on the motor or gear train at travel limit.  All of our motorized systems use quiet running DC motors to ensure noise-free operation, even in sensitive electrophysiology experiments.  High-speed versions available upon request.