4-Pack Nitinol Tension SpringsWhen the springs are cool, they can be expanded or deformed to a length of about 5.5 inches (14cm) with a force of around 6N. It can contract to about 1.14 inches (29mm) overall length when heated, with a force of 8.4N and a current of 3 amps. Wire diameter of 750 micrometers activates between 55 and 85 degrees Celsius. For longer distance, use several in series, or numerous in parallel for increased force. The force and amperage numbers in this product are for demonstration purposes only, and they may differ according to your application.Features 350 gram hanging mass; will stretch to a length of 60mm When heated to 70-80C with 2A current, it will shorten to 1.18" and lift the mass Coil outside diameter: 6mm Wire diameter: 750Amicrom Comes in a pack of 4 springs
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