DELTA BOX frame In consideration of the particular stresses the flail-hedger mowers are subjected during work, Ferri developed a new concept of frame, called «DELTA BOX». Made of two sheet walls, which are laser-cut and joined through bent sheets. The whole is welded on a robotized system; The structure obtained is extremely light and strong. The «delta» shape of the frame reacts to the vertical thrusts both downwards and upwards exerted by the arm and head weight. The « box» shape of the frame reacts to the horizontal forces of the arm both forwards and backwards. The tank is no longer an integral part of the frame. It is only supported by the frame, so it is protected from the twisting to which the frame structure is subjected.

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