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High Force Voice Coil Actuators

The VCA series actuators were developed to听fill a market gap for large, high force, linear听voice coil actuators. Two standard sizes are听offered that each include a linear bearing,听encoder, and thermocouple. The linear bearing听can be replaced with a flexure that is tuned听to fit application-specific needs. Cleanroom听and vacuum-compatible versions are also听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 length 24 mm 20 mm
Force constant 40 N/Amp 147 N/Amp
Max current - air cooled (5 scfm) 9 Amps (RMS) 12 Amps (RMS)
Max current - uncooled 3 Amps (RMS) for 30 minutes 3 Amps (RMS) for 30 minutes
Resistance 1.6 惟 4.6 惟
Inductance 4 mH 35 mH
Frequency output DC to >1 kHz DC to >1 kHz
Diameter 151 mm 236 mm
Length 196 mm 215 mm
Total mass 11.5 kg 42 kg
Moving mass 0.5 kg 2 kg
Sensor type Linear encoder Linear encoder
Sensor resolution 0.5 渭m 0.5 渭m