Grain elevator of varying length, which may be incorporated in buckets 4 or similar road or rail implements, and which is indicated by the numerical reference (1), characterized in that it consists of a rectangular or square tube (2), divided into two parts, one of them of larger section indicated by the numerical reference (3) and fixedly mounted in the tank or bucket (4)； the part (3) of the smaller section pipe (2) is provided with an adjustable opening called a gate (5) at the bottom, which is mechanically or hydraulically actuated, allowing the flow of the product to the elevator (1) to be controlled； the second part, also called the movable part (6), has at its upper part an orientable discharge nozzle (7) through which the granular material exits； the lifting device (1) may have its length varying between two positions, ie retracted tube and extended tube； rollers or gears are placed at the ends of the fixed and movable tubes as indicated by the numerical reference (8) mounted on shafts, one with free rotation and the other driven by force, hydraulic power or others； on the upper and lower axle assemblies are mounted the bands or chains (9) having attached equidistant separate buckets or hubs (10)； the buckets (10) perform the function of promoting the transport of granular material from the bottom of the elevator (1) to the upper exit, where the discharge nozzle (7) is mounted； By the action of a hydraulic cylinder (11) placed inside the fixedly anchored elevator (12) in the fixed tube and the other free end (13) in the movable tube the length of the elevator (1) can be changed.dispositivo elevador de grãos de comprimento variável, o qual pode ser incorporado em caçambas 4 ou implementos rodoviários ou ferroviários congêneres, e que é indicado pela referência numérica (1), sendo caracterizado por consistir de um tubo de seção retangular ou quadrada (2), dividido em duas partes, sendo uma delas de maior seção indicada pela referência numérica (3) e montada de
