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Reclaiming and recovering foundry sand with microwaves

3 October 2024
Recuperacion de arenas de fundicion por microondas

“The key new feature of this technology is its ability to transform that waste into a reusable and valuable resource”

Revolutionary microwave technology to reclaim and recover foundry sand

The sand recovery process using microwave technology is a significant innovation in the foundry industry. Traditionally, a significant proportion of the sand used in foundry moulds, both chemical and green, was discarded after use, generating large volumes of waste that often ended up in landfill.

The key new feature of this technology is its ability to transform that waste into a reusable and recovered resource, thereby reducing the environmental impact and costs around waste disposal and acquisition of new raw materials.

The use of microwaves, instead of traditional recovery methods, entails much greater energy efficiency and less wear and tear on the material. Microwaves allow a more uniform and controlled heating of the sand, facilitating the removal of binders without degrading the quality of the base material. Furthermore, by reintroducing this reclaimed sand into the production cycle, the need to extract and process new sand is reduced, contributing to a circular economy within the industrial sector.

Sand certification

Another new feature is the possibility of certifying this reclaimed sand as raw material for other sectors. This opens up new opportunities to transform previously discarded waste into a valuable product that can be used in industries such as foundry, construction or other industrial sectors, increasing sustainability in their production.