APS + Multi-Finger Separation System The same leading threshing technology of the LEXION 700 Series is combined with advanced straw walker separation technology from CLAAS to provide the greatest separation performance possible without compromising straw quality. Model 670 • Extra-long straw walkers with the exclusive Multi-Finger Separation System drum provide unmatched straw walker separation. APS threshing technology “The APS SYSTEM lets me get in the field earlier and stay out later, giving me the largest output per day during our limited harvest window.”