SORTER

PROBLEM TO BE SOLVED: To provide a sorter which is capable of reducing the burden of replacement work of a grid bar.SOLUTION: A sorter includes a vibration screen 5 which conducts the sorting in accordance with the particle size of an object to be sorted, and a coarse sorting device 24 which is arranged at the front stage of the vibration screen 5. The coarse sorting device 24 has a base frame 72 and a sieve member 73 which is connected with the base frame 72. The sieve member 73 has a sieve frame 75 which is connected so as to be rotatable to the vertical direction against the base frame 72 around one side of the sieve frame 75 as a fulcrum and a plurality of grid bars 76 bridged over from one side to the other side of the sieve frame 75. The grid bars 76 are composed so that they are rotatable to the sieve frame 75 around the other side connected with the sieve frame 75 as a fulcrum, one side of the grid bar is placed and supported on one side of the sieve frame 75, and they are removable from the bracket 86 which is fitted to a shaft 88 and can be inserted and withdrawn to the radial direction of the shaft 88.