Abstract: Disclosed is a combine harvester (1) comprising, a crop material conveyor (2) arranged to convey harvested crop material (3) in a conveying direction (CD) towards a threshing apparatus (4). The threshing apparatus (4) comprising a thresher plate (5) and a rotating thresher (6) arranged to rotate around a thresher rotation axis (7) 5 extending in a transverse direction in relation to the conveying direction (CD). The thresher plate (5) partly encircles the rotating thresher (6) such that the harvested crop material (3) is beat against the thresher plate (5) by the rotating thresher (6). An apex (8) of the crop material conveyor is arranged above the thresher rotation axis (7), so that the harvested crop material (3) is deposited to the threshing apparatus (4) from 10 above the thresher rotation axis (7).

Abstract: Disclosed is a grain separating apparatus (1) for a combine harvester (2). The grain separating apparatus (1) comprises at least a first walker-sieve (3) and a second walker-sieve (4) arranged side by side, wherein the first walker-sieve (3) and the second walker-sieve (4) are suspended in at least two suspension points (5,6) in the combine harvester (2) and wherein at least one of the two suspension points (5,6) is arranged to describe a rotational motion. A rotational motion drive (7) is arranged to drive the rotational motion of the first walker-sieve (3) out of phase with the rotational motion of the second walker-sieve (4), wherein each of the at least two walker-sieves (3,4) include a straw walker (8) comprising drivers (9) for conveying a straw material (10) and wherein grain (11) and debris (12) are separated from the straw material (10) through walker apertures (13) arranged in the straw walker (8).