Nitinol Compression Spring

Compression Spring ­ When cool, can be pressed down to 16 mm ( 5/8" ). Heated with 3 Amps, it extends to 30 mm (1-1/4") with over 4 Newtons of force! 8 mm (5/16") coil, 950 µm (.04") wire, activates at 55-65° C equivalent to (131-149° F).

 

Nitinol compression coil spring

Wire diameter 1.0mm (0.039in), Mean coil diameter 7.0mm (0.27in), Alloy M

Analysis

• Wire diameter: 1.001 mm
• Mean coil diameter: 7.05 mm
• Total turns: 16.5
• Free length: 36.8 mm
• Austenite finish: 62.5ºC
• Nickel: 55.14%
• Titanium: Balance