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Flat Spiral Springs, Power Springs & Constant Force Springs

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Flat Spiral Springs, Power Springs & Constant Force Springs


Our custom-designed Flat Spiral, Power and Constant Force Springs are produced in a wide variety of sizes from a wide assortment of materials that are non-magnetic, high temperature and high fatigue. Size range is 0.003” to 0.250” thickness, and 0.125” x 3.50” wide. These types of springs store and release energy in the form of torque.


Flat Coil, Power and Constant Force springs are utilized in the Automotive/Transportation industry, Aerospace & Defense, Medical, Industrial, Durable/Commercial Goods and Electronics markets in a variety of applications:

  • Rewind devices
  • Office equipment
  • Motors
  • Generators
  • Counterbalances
  • Door closers
  • Electrical switchgear
  • Home décor
  • Retracting devices
  • Point of purchase displays

Flat spiral springs are also known as spiral torsion, clock springs or brush springs. They are characterized by the requirement that the coil contact is minimized during operation. Springs are designed to customer requirements and are used in the automotive, medical, industrial and office equipment markets.

Power springs (also known as Recoil springs or Motor springs) store and release rotational energy in the form of torque. Spiral-wound flat metal strips are available in a wide range of sizes and attachment methods for gas-powered lawn and garden equipment, mechanical motors, counter-balance mechanisms, reel returns and rewind devices.

Divisional Specialties

  • Supply complete spring assemblies
  • Supply as sub-assemblies
  • Wind directly into customer supplied housings
  • Complete torque testing capabilities

Our plants are third-party certified to AS9100, ISO9001 or TS16949 and ISO 14001 depending on the markets serviced.

How to Specify:

A blueprint or sketch is the best way to specify your custom power or flat spiral spring. Consultation with Associated Spring engineers early in the design stage will often result in lifecycle cost optimization.

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