Technical Overview Header 1. Row independent header with high-speed cutting rotors and freewheel mechanism. 9QS-350 uses a foldable header for road travel, with a minimum width of 2.5m 2. Hydraulic reversal mechanism, tungsten-carbide coated blades, and maize stubble cleaners all provide the best performance. Cutting and Comminution 1. 24 V-form herringbone configuration blades increase cutting efficiency and prolong belt life. …