Nitinol Expansion Spring

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Nitinol Expansion Spring

Nitinol Expansion Spring

When cool, spring can be extended to 14 cm (5-1/2"). Heated, contracts to 29 mm (1-1/8") overall. With 350 gram hanging mass shrinks from 60 mm (2-1/4") long coil (cool) to 30 mm (1-1/8") long (heated) with 2 Amps. 6 mm (1/4") coil, 750 Ám (.03") wire, activates at 45-55░ C equivalent to (131-149░ F). Use several in series for greater distance, or in parallel for greater force.


PDF Manual

Nitinol tension coil spring

Wire diameter 0.75mm (0.030in), mean coil diameter 5.55mm (0.22in), Alloy M

Analysis

  • Wire diameter: 0.754 mm
  • Mean coil diameter: 5.50 mm
  • Total turns: 21.4
  • Free length: 26.8 mm
  • Austenite finish: 51.5ºC
  • Nickel: 55.36%
  • Titanium: Balance

Item Niti-ES - $44.95

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