An Indent Cylinder Machine is an essential seed cleaning and grading tool used in agriculture and grain processing industries. It is primarily designed to separate seeds or grains based on their length, ensuring high precision and uniformity in the final product. This machine operates on the principle of selective retention, where indentations on a rotating cylinder pick up grains of specific sizes.
The machine consists of a rotating horizontal or inclined cylinder with perforations (indents) and an adjustable trough. As the cylinder rotates, smaller grains or seeds fit into the indents and are lifted before falling into the collection trough due to centrifugal force or gravity. Larger particles, which do not fit into the indents, are discharged separately.