Reduce grain loss
Gleaners are renowned for their ability to clean grain and reduce loss on slopes because of the patented accelerator rolls and two-stage cleaning process.
The cleaning process begins with distribution augers just underneath the threshing and separating system distributing the material flow into a smooth and even cascade into the accelerator rolls.
Two larger-diameter five-fluted rubber accelerator rolls accelerate grain and chaff downward at four times the speed of free fall. The grain is then propelled through an evenly distributed air curtain from a larger 13-inch (330 mm) diameter, cab-controlled transverse fan. Dual-stage outlets provide air for pre-cleaning at the upper duct and final cleaning at the lower duct. The two-stage, high-velocity cleaning provides a high-quality clean tank sample, even at the highest harvesting rates. The separated grain lands on a cushion of grain on the louvered grain pan just ahead of the chaffer.
The cascade pan has a 6-degree angle to move crop quickly to the pneumatic shoe for greater capacity in higher-moisture crops and on downhill operation.
As lighter chaff blows out the rear, material from the pre-cleaning is processed by the chaffer and sieve.