Celli spaders provide a solution to the problem of deep soil cultivation in difficult conditions; they do not make any hard pan (layer of compacted soil in depth), in fact they help eliminating it, improving the water circulation and the aeration of the soil. As these implements do not need to be pulled by the tractor, they can be used in very wet conditions and on steep grounds. Erosion problems can be also reduced thanks to the ideal size of the clods left. Celli manufacture spaders to suit tractors between 20 and 190HP and between 80cm and 3.5m