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Our manufacture process

Our manufacture process


We produce with cutting-edge technology

In our aggregate operations we apply cutting-edge and innovative technologies to optimise and control processes, ensuring that we always work in balance with the environment and maximising the prevention of occupational hazards.


We care for our future

We devote significant efforts and resources to applying the fundamental principles and concepts of sustainable development at our open-pit mines and their processing plants.


We control quality

We integrate environmental, social and economic aspects in the different stages of rock extraction, its subsequent treatment to obtain aggregates and transport to consumption centres, offering products with high quality standards.

Aggregate manufacture

The conception and design of quarries, as well as the operating technique used, vary when it comes to extracting massive rocks (quarries) or unconsolidated materials, either dry or wet, such as gravels and sands (gravel pits).


Voladura 1When it comes to exploiting massive packages (consolidated materials), extraction is carried out by blasting with explosives for the controlled fragmentation of the rock mass.

Gravel pits

Extraction of sands and gravels (unconsolidated materials) is carried out with mechanical extraction equipment (excavator, loader, dragline, bulldozer).graveras2



Transport to the treatment plant by trucks, dumpers or conveyor belts.





medio01Crushing allows the particle size to be reduced in successive stages, using crushing and crushing equipment:

jaw crushers, percussion or gyratory crushers, cone crushers, ball mills or rod mills.


The Movement


The movement of the aggregates between the different equipment in the treatment plant is carried out by means of a system of conveyor belts.


Screening, where aggregates are separated by size.

Storage and dispatch

At the storage and dispatch stages, thanks to the control of the highly automated manufacturing process, quality products are already available, sorted according to particle size and stored in silos or stacked.