• Medium and Heavy Steel parts

    Advice + Experience + Quality
  • 1

Certified by TüvRheinland

Certified by TüvRheinland

Soldadura homologada

Welding procedures
Qualified Welders and Welding Operators


Constant inhouse and external inspections to provide the best quality

Production Process

Our technical office linked to the assembly capacity of large and complex structures and thanks to the quality controls make us a competitive company at European level.


Finished steel constructions according to customer specifications

Stabilized welding - Heat treatment

After the stresses generated by the welding, we manage its stabilization to eliminate them, by techniques of THERMAL TREATMENT and STABILIZED BY VIBRATION. A graph of the entire process is generated showing the heating, maintenance and cooling times.

Shot blasting

We apply shot blasting to remove surface impurities from industrial sheets, and also those produced during the oxygen cutting and manufacturing process. The oxide generated during the heat treatment is also removed. ISO standard 8501-1 Shot blasting Sa 2½


The application of the printing paint after the shot blasting process allows adequate protection of the workpiece surface. The quality and thickness applied are those requested by the customer.

Finishing operations in Juan Lasa

Depending on customer's specifications, parts can be subjected to complementary processes such as screw re-profiling, surfaces polishing, application of grease coatings for surface protection, etc.

Parts Machining

If the customer requests machining the part before expedition we, at Juan Lasa, have a long and close relationship with the best local machining companies, offering the best ratio Quality/Price.


We also offer regular transport services throughout Europe with the best international agencies, including special transport.


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