Dewulf’s Kwatro Xtreme self-propelled harvester is aimed at potato growers working with four x 90 cm rows or 1.8m beds. Replacing the current 3 x 90cm Kwatro, the Xtreme’s harvesting unit is positioned in front of the 900mm-wide tracks so the ridges remain intact. At the rear, the optional Mitas 1250 / 50R32 tyres ensure minimum soil compaction, and says Dewulf, allows harvesting to continue even in adverse conditions.

Automatically following the rows, the harvesting unit is equipped with automatic depth control based on two skids, separate harvesting shares and hydraulically-driven cutting discs. The sieving path comprises a digger web followed by two sieving webs. All stages are 1.76m wide, which the Belgian company reckons is unique in the four-row, 90cm, self-propelled segment. This results in an unobstructed crop flow through the machine and the possibility to operate at faster speeds.

The three-section distribution belt spreads potatoes across the entire width of the ring elevator, which in turn is fitted with active side plates to prevent damage. At the top, a cleaning module can be integrated in the discharge conveyor, before the crop reaches the Kwatro’s 17.5cu.m. bunker.