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Automation of sanding in Aerotecnic’s aircraft engine cowlings

Surcontrol automatiza el lijado y pulido de los motores de los aviones

Company

Aerotecnic is a manufacturer specialized in aeronautical components.

For aircraft engine cowlings — panels that cover and protect the engine — the company needed to optimize the sanding process of the internal walls, a key operation to improve aerodynamics and the surface quality of each component.

Challenge

To automate the sanding process of carbon fiber panels in the engine cowling, ensuring a uniform finish, greater manufacturing efficiency, and the complete elimination of variations inherent to manual work.

Problem

  • Slow and variable manual process: Sanding depended heavily on operator skill, leading to differences in finish quality and repeatability.
  • Aerodynamically critical finish: Any surface imperfection could affect airflow performance and overall engine efficiency.
  • Lack of surface uniformity: Manual control made it difficult to maintain consistent quality across complex carbon fiber components.
  • High time dedication: The manual process was demanding, time-consuming, and inefficient for production series.

Solution

How we do it?

We developed a fully automated robot specialized in carbon fiber sanding.

  • Consistent precision and superior finish: The robot applies uniform, controlled pressure, achieving perfectly smooth and repeatable surfaces.
  • Full-cycle automation: Manual intervention is reduced and the finish is standardized across all components, even those with complex geometries.
  • Manufacturing time optimization: Production is accelerated and process stability is enhanced by eliminating human variability.

Results

  • Uniform finish in carbon fiber components essential for engine aerodynamics
  • Reduced variability and increased process repeatability
  • Faster manufacturing times and reduced manual intervention
  • Superior surface quality thanks to automated sanding