Main Industrial Applications

Axles front and rear shock absorber -MAIN INDUSTRIAL APPLICATIONS- Read more Axles front and rear shock absorber
Cylindrical suspension springs and biconical tapered -MAIN INDUSTRIAL APPLICATIONS- Read more Cylindrical suspension springs and biconical tapered
Stabilizer & torsion bars -MAIN INDUSTRIAL APPLICATIONS- Read more Stabilizer & torsion bars
Other automotive parts -MAIN INDUSTRIAL APPLICATIONS- Read more Other automotive parts


Commitment to quality

The main premise from CAPRESA is based on the fulfillment of the strictest quality standards required by automotive industry customers. This fact has led us to obtain the ISO/TS 16949 certification.
Our desire is to continue to improve our products and services through our detection and control customized Eddy Current systems, studies of advanced planning for new products, traceability controls, identification of the product according to industry automotive standards and continuous improvement groups.

Personalized management

The information systems allow us to coordinate the different production processes to achieve an adequate service according to the needs of our customers.
We are used to work with delivery systems as Just in Time, Kanban, or on request of customer.

Commitment to the client

Thanks to our innovative capacity, we have designed new processes and specific machinery for our customers, including the development of personalized semi finished products.
Our Know-how and experience allow us to have a direct deal with the customer from the different areas of the company, which provides agility and reliability in our answers, ensuring optimal delivery times and excellent supply conditions.


Cold Drawing+Crack Detection+Peeling

This combined process, exclusive of Capresa, makes possible to obtain bars or rods for shock absorbers on the same machine line, also to detect cracks and get the required dimensions of diameter and length requested by customers.


This process is based on the peeling of the bar surface using a head of 4 tools. Finally the bars are straightened through hyperbolic rollers. After this process, the surface is polished and with proper dimensional tolerances according to customer’s needs.

Cold Drawing

It consists in performing cold reduction of approximately 10-20% of the material by means of a die with hard metal core. The result is a surface with a precise round geometry.

CNC Machining

Numerical control machines are perfectly adapted to the manufacture of conical or biconical bars for the production of suspension springs.

Shear cutting

This process allows us to make cold cuttings and obtain length tolerances till 1 mm.


We use systems of facing and chamfering in order to obtain bar ends perpendicular to the surface, without burrs and tolerances of length up to 1 mm.


Process of production Diameter Length min-max (mm) Tolerance
Machined 10-32 0-2100 1,5 mm
Drawn 10-20 1800-6100 h9
Drawn 21-40 2900-7000 h9
Drawn + Peeled 10-22 1600-6300 h9
Peeled 15-80 2900-8000 h10
Shearing cutting 1 10-28 200-1750 1 mm
Shearing cutting 2 18-35 500-2400 2 mm
Chamfered 11-26 270-1700 1 mm

For specific customer requirements, it can be checked and studied.

The list below indicates an example of grades that Capresa produces and offers. For another material, it can be also checked:

  • Carbon steels for the manufacture of shock absorbers rods: SAE-1040, C35R and C45R.
  • Low carbon steels for manufacturing of pieces of the steering system: C15E.
  • Suspension springs and stabilizers: 55Cr3, 54SiCr6, 54SiCrV6, 61SiCr7, 60SiCrV6, and 45SiCrV6.
  • Case hardening steels for manufacturing different kind of parts: 16MnCr5 and 16MnCrS5.
  • Special steels to produce torsion bars: 28Mn6 and C42(MOD).
  • Special steels for the manufacture of bearings for the steering system: 46S20 and 45Cr4S20.



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   Caldes 2 08120 La Llagosta

      Barcelona (Spain)

   +34 935 742 592