The Proof Is In The Field

Across field trials the same mechanism does the work in every crop: tight spacing at the front for aggressive threshing, opening progressively as material moves back, so the shoe is fed evenly instead of in surges.

• Wheat and barley: consistent threshing in both dry and tough conditions without beating up the sample — the difference shows in grade rather than on the yield monitor.
• High-moisture corn: the crop most likely to overload a machine. Variable spacing kept separation clean where other concaves plug or throw grain over, with fewer stops to clear the rotor.
• Soybeans: dry beans shatter, wet ones will not release from the pod, and both cost yield. Trials showed fewer lost beans and a cleaner sample, with fewer adjustments through the day than growers were used to.
• Canola: small seed, and a sieve area that overloads easily. Aggressive threshing up front without flooding the shoe meant less rotor loss and better recovery.

The through-line the trials keep returning to is balance: an even flow through the concave section feeds balanced sieves, which is what cuts loss while letting ground speed go up rather than down.