Nitinol pre-trained 2-way memory helical/coil spring expands and exerts force when heated to 60C. Once cooled to room temperature, the spring contracts on its own with substantial pulling force. The spring contracts completely at room temperature by itself. Force is exerted in both directions entropy.

Characteristics

This variant of the NiTi spring expands when heated and contracts on its own when cooled, providing force in both directions (2-way).

• Spring wire gauge: 0.7 mm
• Diameter: 9 mm
• Fully contracted (cold) length: 14 mm
• Fully extended (hot) length: 85 mm
• Weight: 1.28 grams