Drum shafts in solvent extractors are key components that support and drive the rotation of the extraction drum. Typically made from durable materials like stainless steel, these shafts ensure the smooth and reliable operation of the drum as it processes the material. The drum shafts are designed to handle the mechanical stresses and forces involved in the extraction process, maintaining precise alignment and stability. Their robust construction helps in achieving consistent performance and efficiency, contributing to the overall effectiveness of the solvent extraction system.