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High Force Voice Coil Actuators

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The VCA series actuators were developed to fill a market gap for large, high force, linear voice coil actuators. Two standard sizes are offered that each include a linear bearing, encoder, and thermocouple. The linear bearing can be replaced with a flexure that is tuned to fit application-specific needs. Cleanroom and vacuum-compatible versions are also available as well as customizable interfaces.

 

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APPLICATIONS

  • Shakers
  • Beam steering
  • Stabilized platforms
  • Fatigue testing

KEY ADVANTAGES

  • High accelerations
  • High bandwidths
  • Smooth, precise motion
  • Zero backlash
  • No cogging
  • No commutation

Product Features

VCA-300

VCA-350

   
Stroke length24 mm20 mm
Force constant40 N/Amp147 N/Amp
Max current - air cooled (5 scfm)9 Amps (RMS)12 Amps (RMS)
Max current - uncooled3 Amps (RMS) for 30 minutes3 Amps (RMS) for 30 minutes
Resistance1.6 Ω4.6 Ω
Inductance4 mH35 mH
Frequency outputDC to >1 kHzDC to >1 kHz
Diameter151 mm236 mm
Length196 mm215 mm
Total mass11.5 kg42 kg
Moving mass0.5 kg2 kg
Sensor typeLinear encoderLinear encoder
Sensor resolution0.5 μm0.5 μm

Resources

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