Improved Flake Thickness Consistency Delivers a 0.3% Increase in Soybean Oil Yield
Published on August 22, 2025
Flake thickness variation in soybean processing is directly linked to lower oil extraction yields. A leading soybean processing facility was looking for ways to improve oil yield.
Precision Roll Grinders partnered with the facility to evaluate the operation and noticed that the operators were struggling with inconsistent flake thickness. In addition, it was found that there was significant machine to machine variation, suggesting that the root cause was not soybean or environmental factors but the machines themselves.
To evaluate the impact of roll precision, PRG conducted a multi-day study on three flakers. 2,700 flake thickness samples were collected across all flake zones and operator shifts. Rolls ground by PRG were compared to traditionally ground rolls.
The results of operating the flakers with precision ground rolls showed:
15.32% less standard deviation in flake thickness overall
More flake measurements falling within the ideal thickness window.
the improved flake consistency delivered a 0.3% increase in oil yield resulting in $288,000 in additional soybean oil annually, from a single flaker.
In soybean processing, even small deviations in roll face geometry can lead to major losses in oil recovery. Precision Roll Grinders restores flaking rolls to the tight tolerances, ensuring optimal oil recovery.
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