HAPA-Driven Flextensional Piezoelectric Actuator (HD-FTA)

Large stroke and high working load


Key Features


  • Large stroke (up to 700 µm) and high working load (up to 80 kg-f )
  • Smaller length compared with commercial FTA of comparable performance
  • Free-free mode resonance frequencies of 1000-2300 Hz

HAPA-Driven Flextensional Piezoelectric Acutator

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Product Description


Vertical displacement ΔH responses of HD-FTA-700, HD-FTA-450, HD-FTA-350 and HD-FTA-250 under different loads

HD-FTA-700
HD-FTA-450
HD-FTA-350
HD-FTA-250

Below show the operating range of the various displacement HAPA-Driven Flextensional actuators currently available at MMT.

Feature HD-FTA-700 HD-FTA-450 HD-FTA-350 HD-FTA-250
Dimensions (L x D x H; mm)(*) 78x20x41(H) 78x20x41.5(H) 78x20x42(H) 78x20x43(H)
Voltage Range (V) 0-150 0-150 0-150 0-150
Stroke, ΔH (µm) @ 150V 700 450 350 250
Max. Working Load (kg-f) 10 22.5 41 80
Approx. Stiffness (N/µm) 0.15 0.37 0.70 3.20
Reson. Freq. (free-free; Hz) 1000 1460 1675 2300
Reson. Freq. (free-blocked; Hz) 200 285 350 475
Op. Temperature Range (°C) -20 to +80 -20 to +80 -20 to +80 -20 to +80
Capacitance (µF) 16.7 16.9 16.8 16.2
Mass (g) 167 173 179 189
Std. mechanical interface 2 flat mounting surfaces of 8mmx20mm & each with two M4 threaded holes
Std. electrical interface 80 mm long wires of 0.8 mm in outer dia. (lead wire dia. = 0.5 mm).