A grader apparatus

Method for separating items supplied to group these items into groups determined by different weights, ie placing the items according to their weight and the weight of the items already placed or select items for your group as a combination of items available for selection , whereby the weight determination and possibly also a determination of the type of the items received is performed, and after which a selective group of articles is carried out in groups determined by the weight and possibly also determined by the type while uses a transport equipment having an associated control unit which provides for the distribution of the individual receiving stations respective for items for different groups articles, and for the selective control related transport equipment, and which is used an arrangement of type transfer robot at least as part of Cargo equipment, ie with a gripping element for the free lift items from a supply position and a system controllable motion to transfer an article caught directly and selectively to a position selected deposit transfer that provision robot type comprising at least two robots.