Pushing coil spring that compresses into a very flat profile

Conical spring

A conical spring functions as a pushing coil spring in normal use. It differs from a normal compression spring in that a conical spring can be compressed into a very flat profile. With the right dimensioning, the coils of a conical spring fold into each other, compressing the length of the spring to its wire diameter (Lc=d), or completely flat. Possible applications of conical springs include battery springs, stove handles and vibration springs.

Conical spring characteristics

  • the force of a conical spring increases progressively as the coils compress
  • it is possible to manufacture demanding conical spring shapes, such as battery springs, barrel springs or vibration springs
  • materials include spring steel, oil-quenched spring steel and galvanised, stainless and acid-proof spring wire as well as other special steels, such as heat-resistant spring steel
  • tin bronze is also used for battery springs
  • the most common coating options for battery springs are gold plating and gloss nickel plating
  • wire diameters can range between 0.2 and 9.0 mm
Contact us early, during the product design stage, and we will get your springs straightened out. Explore our conical spring selection below and request a quote.
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