Skalsorter

Skalsorter is a term used in Nordic industrial contexts to describe equipment designed to separate a continuous flow of material into distinct fractions, typically by size, density, or other physical properties. The term is not tied to a single standardized technology and its exact meaning can vary by country, industry, and application.

A typical skalsorter system includes a feeding arrangement, one or more grading elements such as screens or perforated decks, and collection points for each fraction. The screening or grading stages may be vibratory or fixed, and the line often incorporates conveyors and gates to route material to different bins. Many installations also employ supplementary separation methods, such as air classifiers, gravity-based devices, or magnetic and optical components for specialized sorting tasks.

The guiding principle of skalsorter equipment is to partition material into fractions that are more uniform in size or other properties, enabling easier downstream processing or reuse. Separation efficiency depends on factors such as feed rate, screen size, vibration, and the interplay of density and flow dynamics. Variants range from simple grain graders to integrated mineral processing or recycling lines that combine multiple separation stages.

Common applications include agricultural handling (grain and seed grading), mineral processing (size fractions for beneficiation), and recycling or waste management (sorting plastics, metals, and composites). The exact configuration and terminology can differ between regions and industries, reflecting local standards and objectives. See also sorting machinery, sieving, and air classification.