Patent ID: 7980393

Claim:
A vibrating screening machine ( 1 ) for grading bulk material, comprising a housing ( 2 ) and at least two sidewalls ( 3 , 4 ) on which at least one screen deck ( 5 - 7 ) is mounted, on which a screen lining ( 8 ) is retained, and a drive means ( 19 ) to cause the screen deck ( 5 - 7 ) to vibrate, wherein via at least one material feed ( 10 ), bulk material to be screened is fed and via at least one fine-grain discharge ( 12 ), fine-grain bulk material is discharged, and via at least one coarse-grain discharge ( 11 ), coarse-grain bulk material is discharged, characterized in that at least all mounting points ( 14 ) provided on the sidewalls ( 3 , 4 ) for mounting flanges ( 32 ) of cross-members ( 23 ) and all mounting points ( 27 ) of mounting means ( 26 ) for mounting reinforcing units ( 24 ) on the sidewall ( 3 , 4 ) are aligned with a defined grid ( 15 ), the grid ( 15 ) comprising grid points ( 16 ) aligned with an x-y system of coordinates whose x-coordinate (x) and whose y-coordinate (y) define a system angle, wherein the system angle is different from 90°.