Arc Springs

Global leader in arc spring

We work with the necessary know-how and always provide the perfect arc spring for your project

Arc springs are one of the applications with the greatest demand for FEM analysis at RPK Group. It is a good example of how Finite Element Analysis (FEA) is used to ensure a safe and optimized design of this type of springs.

Regarding the material, we use eddy current tested qualities of torsion and valve spring wires. Depending on your application, stresses, and space we can make them with round and profiled wire cross-sections. At RPK Group, we deliver these arc springs as single springs with a linear torque characteristic or as a spring set variant for multistage torque characteristics.  Our springs are manufactured in wire diameters from 2.00 mm to 5.00 mm, so they are ideal for various applications. 

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Arc Springs

Advantages and benefits of arc springs

  • We provide arc springs as single springs or as a spring set variant
  • We have accumulated plenty of experience in Finite Element Analysis (FEA) for this type of product
  • We use round and profiled wire cross-sections


  • Wire diameter: 2-5 mm (0.08-0.2 in)
  • Other dimensions as required


The choice of the right material, surface treatment and coating are critical for the final quality and safety of the product. From stainless steels to the most specific materials bought in from the best suppliers. 

  • Carbon steel
  • Stainless steel
  • Inconel  
  • Elgiloy 
  • Hastelloy 
  • Chrome silicon
  • Other materials according to your special requirements

Industries / Applications

Go to Automotive

Get the most out of our expertise

Our engineers work alongside our customers to find the best solution for them, applying scientific methods and knowledge accumulated over almost 50 years.

Do you need help for your next project?

Contact our engineering and sales teams. We will help you find the best solution for your applications.

+34 945 25 77 00

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