A mining operator in South Africa experienced recurring cooling issues with the aluminum radiators used on their CAT 390 excavators.

Under high-dust working conditions, the aluminum fins became easily clogged, reducing cooling performance and shortening service life.

SINRUI Mining replacing the aluminum radiator cores with removable copper fin-tube structures.The copper design allows sections to be removed and cleaned individually, improving serviceability.Copper fins also offer higher thermal conductivity and better resistance to wear from dust and vibration.

After installation, the cooling system performance became more stable, and the maintenance process was simplified.

The new design improved cleaning convenience and durability, extending service intervals and reducing the frequency of radiator replacement.