The grape harvesters can be carried, towed or self-propelled with their own engine, a model that, compared to the others, offers a higher progression in advance. This type of machinery operates in the screws by means of interfacing, or they pass over them by climbing over them. They need two operators who detach the bunches or only the grapes. The cut is performed by suction or compression, by shaking and by percussion. Vertical shaking models are generally less used. They allow you to organize the branches with a star-shaped tool that hits the cord from the bottom up, or vertically generating the fall of the berries from the stalks. Horizontal shaking machines, on the other hand, begin to have a wider use.
Horizontal shaking grape harvester
The horizontal shaking grape harvesters are mainly used on Guyot-type forms of farming, that is, with vertical walls. These are towed or self-propelled machines capable of managing and self-leveling the operations of the machining systems. They consist of four basic elements: collection group, interception group, transport device, cleaning system. The horizontal shaking machines straddle the row with two nylon shakers on both sides of the machinery, whose synchronized oscillation is transmitted to the row and therefore to the grapes. The shaking part is articulated by a complex of semi-curved vibrating rods, in fiberglass with a cylindrical section, moved by a hydraulic motor that allows a cyclic mechanism.