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If samples for the analysis of cornsizedistribution are required, it is not enough to take a controlled section from the solid stream. In order to get a convincing evaluation of the overall product, we recommend to capture the complete product stream and to take a representative cross cut. Our cross cut sampler for verticle gravity chutes is well suited for this type of sample taking. Increments of powder or lumps of solids are taken out and delivered by gravity to a sample bottle or fall into a chute. When activated a cutter pivots through the full product stream, sweeping 90° arc, collecting a true cross-section sample. The cutter inlet is shaped so that all particles from any part of the cross-section have the same probability of being sampled independent of speed of movement. The collected sample quantity can be varied in proportion to the speed of the movement. In order to take samples proportionally over a longer period of time the cross-cut sampler can also be fully automated.