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This sesame processing line is designed for the professional processing and impurity removal of raw white and black sesame seeds. It employs multi-stage purification to eliminate contaminants such as pod fragments, dust, soil, stones of similar size, shriveled or moldy seeds, and metallic impurities, achieving a final product purity of 99.5% with customizable capacities ranging from 3 to 20 tons per hour. The line utilizes bucket elevators for low-breakage, enclosed material feeding, followed by a dual-screen air separator to remove large, small, and lightweight impurities. A gravity destoner removes stones of similar size, while a gravity separator eliminates shriveled and moldy seeds; a magnetic separator removes soil clumps. A negative-pressure dust removal system improves the workshop environment, and optional color sorting and packaging equipment can be integrated. Featuring a modular design, the line allows for variable-frequency adjustment of airflow, vibration amplitude, and feed rate, ensuring minimal material breakage. It meets export quality standards and is compatible with downstream processes such as hulling and oil extraction.

Nigeria is the world's seventh-largest sesame producer and a major exporter. Sesame is a core economic crop in the country's northern and central regions, renowned for its high oil content and high-quality white seeds, with approximately 80% of its production exported.

Both destoners (gravity destoners) and gravity separators (gravity sorters) utilize the difference in specific gravity and suspension velocity to clean impurities from sesame seeds.

Freshly harvested soybeans and mung beans are considered raw grains with a wide variety of impurities.