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Round wire extension springs

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ISB Srl produces extension springs according to customer design.

By implementing automated solutions, ISB produces small prototype batches as wells as large mass production.

Machine checks carried out by means of video detection devices and inspections by our staff guarantee top quality standards.

The products are made on specific requests by the customer, which we also support during the development and design phase also as a result of programs that enable 3D simulation of the part.

The extension springs are used in various sectors, including automotive, medical, agricultural machinery, household appliances sector and industrial automation.

Technical features

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Cross-section of materials:

Wire diameters: from 0.2mm to 10mm.

Different materials are usually used, such as:

  • Carbon steels
  • SiCr-alloyed pre-quenched steels
  • Stainless steel
  • Copper, bronze and brass alloys

At the customer’s request, productions are made with titanium alloys.

All parts can be supplied with antioxidant coatings and/or surface treatments and heat treatments.

Download materials table

Eyelets: German, English eyelets

Rotating hooks