
Keep the fully filled sunflower seeds
Sunflower seeds can look similar on the outside while containing very different amounts of useful material. Empty hulls and poorly filled seeds add weight and volume to a harvested lot without contributing the same value as fully developed seeds. Metra ADS and ADS-CDC help separate empty and poorly filled sunflower seeds from fully filled ones using controlled airflow.By removing lighter, less developed material, farmers can concentrate valuable, fully filled seeds in the retained fraction.
This is especially useful when preparing sunflower seeds for oil pressing, further processing or sale. The goal is to recover more of the valuable, fully developed portion of the harvest and reduce unwanted material in the finished lot.
How airflow makes the separation
An empty sunflower seed can have nearly the same external dimensions as a fully filled seed. That makes separation by size alone less useful.
Metra ADS and ADS-CDC use a different approach: controlled airflow separates seeds according to their aerodynamic properties, influenced by mass, density, shape and dimensions.
This allows the cleaner to separate sunflower seeds into useful fractions:
– Fully filled seeds: The valuable portion selected for further processing, pressing or marketing.
– Poorly filled seeds: Less developed material directed into separate fractions.
– Empty seeds and lightweight impurities: Material removed from the useful seed stream.
Airflow and fraction settings can be adjusted to the characteristics of the harvested sunflower lot. ADS also offers gentle, screenless handling, making it useful when preserving seed integrity matters. By calibrating the harvested material rather than simply removing visible debris, Metra helps farmers prepare a cleaner, more uniform sunflower seed lot for its intended use.
Start with your sunflower material
See how Metra ADS separates your sunflower seeds.
Metra offers free grain sample testing using your own harvested material. During the demonstration, you can see how the equipment separates fully filled seeds from empty and poorly filled ones, compare the resulting fractions and evaluate how much useful sunflower seed is retained.
The Metra team will help select suitable equipment and airflow settings for your material. You do not need to choose a machine before contacting us.
Contact info@graincleaner.com or call +1 701 515-0488 to arrange your free sample test. Your Metra manager will coordinate the sample quantity, shipping arrangements and any associated costs.


