Specifications include, but are not limited to:. The following specifications detail the minimum requirements that must be associated with bid quotations for a new small plot research combine. Basic machine components: Header features: Five (5) foot, (1.5 meter) cutting table. Floating header with adjustable skid plates. Crop lifters for short / lodged crops. Single intake auger. Pneumatic cleaning system. Right and left row dividers. 5-part reel with brushes. Hydraulically controlled sickle and reel speed. Horizontal hydraulic reel adjustment. Combine configured for corn or all-crop header attachments. Threshing and Cleaning Systems: Variable speed rasp bar style threshing drum with digital tachometer. Standard cereal grain concave with hydraulic adjustment capabilities. Reversable drum and intake auger to prevent plugging. Variable speed cleaning fan with digital tachometer.