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New Lower Cost Voice Coil Positioning Stage from H2W

The engineers at H2W have developed a new lower cost voice coil positioning stage that incorporates dual mounting options.  H2W reduced cost by using a lower resolution encoder and simplified design.  This system includes optional air cooling that would allow the stage to achieve higher continuous forces.

The stage has standard mounting holes that allow it to be mounted either vertically or horizontally.  In the vertical orientation, the lighter weight coil assembly is the moving component.  When the stage is oriented horizontally the overall height of the stage is reduced and the magnet assembly becomes the moving component.

The voice coil positioning stage (VCS20-020-LB-12) is a closed loop system that can be used for high speed positioning applications.  The stage is driven by the NCC type actuator (NCC20-18-020-1X) and is guided by precision linear recirculating bearings.  The voice coil has a 2.0" [50 mm] stroke; generates 2 lbs [8.9 N] of continuous force and 6 lbs [26.7 N] of peak force.  It includes a lower cost 12 micron resolution linear encoder.  There are two mounting options: one of which allows it to be oriented vertically with the coil moving, or mounted horizontally with the magnet assembly moving.  Voice coil positioning stages are ideal for applications that require quick, short moves with fast settling times.


  • Lower Cost
  • Dual mounting options
  • High acceleration
  • Compact footprint
  • Optional air cooling
  • Custom strokes and force configurations available

H2W Technologies is dedicated to the design and manufacture of linear and rotary motion products that are used in the motion control industry.  The complete line of linear electric motors includes: single and dual axis linear steppers, DC brush and brushless linear motors, voice coil actuators, and AC induction motors.  Also offered is a complete line of ball screw, lead screw and belt driven positioning stages.

Other motion control products include: limited angle torque motors for compact, limited angular excursion rotary servo applications, 3 phase brushless rotary servo motors with matching digital servo amplifiers and permanent magnet linear brakes for fail-safe, zero power braking for baggage handling and people moving applications as well as amusement park rides.

With over 85 years combined experience in the linear and rotary motion field, the H2W Technologies team of engineers offers the optimal solution to the most demanding motion control requirements.


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