Optimum drying with low fuel consumption due to high thermal efficiency and effective usage of heat are the most significant superiorities of SIGMA dryer. The drying drum is thermally insulated and covered with stainless steel sheets on the outer surface.

The drum rings are manufactured out of special forged steel. The drum drive is friction type with four rollers that are individually driven through shaft mounted gear motors, enabling easy regulation of dryer rotation.

Shapes and configurations of the flights and lifters inside the drum are optimally designed for efficient heating.