Preparation of metal specimens for tensile testing

Preparación de muestras metálicas para ensayos de tracción

Servosis has extensive experience in the world of parts and materials testing, 25 years of work endorse us as a reference in the sector.

Our range of products includes all kinds of fields: aeronautics, automotive, construction, wood, composites and also the development of tooling, such as our series of clamping jaws.

We are in contact with the main manufacturers and research centers of the sector in order to be able to offer updated products, adapted to the most recent regulations of the sector.

On the other hand, our differential factor is the ability to offer customized solutions, according to the specific needs of each of our customers.


To validate whether the conditions of the steel bars are correct for sale, manufacturers must test pieces of this material in a tensile machine, but prior to this test, the bars must be straightened. This process is usually done manually, but in Servosis we have in our catalog a machine that straightens these bars, offering a very interesting solution, since this process is much more efficient.

The manufacture of this machine complies with the Structural Concrete Instruction. Annex 23, published by the Comisión Permanente del Hormigón del Ministerio de Transportes, Movilidad, y Agenda Urbana.

There are two models:

  • A manual one (Mod EBM), where the rollers straightening the bar are manually regulated by handwheels.
  • An automatic one (Mod EBA), where the straightening rollers are adjusted hydraulically.

Both models are available in the following versions:

-14: For bars from Ø8 to Ø14.

-25: For bars from Ø 16 to Ø 25.

The process of straightening steel bars, both smooth and corrugated, is simplified with the use of this type of machine, the user only has to select the diameter of the bar to be straightened.

For more information about the straightening process or about our products, please contact us!