Muscle wire used in smart projects with extension springs

Available on back-order

Muscle wire is electronic wire which can expand or contract, ideal for smart textiles and model-making projects.

This pack includes 50 extension springs & 50 x 150mm Crimped Muscle Wire.

  • When a current passes through the muscle wire the composition of the wire changes which makes it contract. This movement can be increased by the use of levers etc to produce moving parts within models.
  • Muscle wire (also known as smart wire and nitinol wire) with crimped copper ring terminals
  • Fitted copper ring terminals make model making simple
  • Wires can easily be soldered on to the copper ring terminals
  • Muscle wire can be repeatedly used
  • Movement can also be controlled using a 555 timer circuit with a supply voltage of 4.5V, this allows the correct 3V to operate the muscle wire
  • Movement can also be controlled using PIC chips to activate and de-activate the muscle wire using the correct 3V supply.
  • Approximate diameter 0.015mm (0.006in.)
  • Free downloadable book with information about muscle wire and a project for a Dancing Toy

This product can be ordered it will take  4 weeks as this product is made to order.  Please contact us with your requirements 


  1. Lloyd Reynolds

    Fast delivery, highly recommended Lloyd Reynolds

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