Change tail block support for stretch support,reduce noise farthest,improve grade performance; Low conk out,little maintain,handle facility;gear-box adopt non-gear wheel running manner,do without lubricate,avoided oil leak; Inside clipper-built design,without material aggradation,avoid pollute; Grading sieve setup convenience exchange sieve fleety; Have two layer sieve,three layer sieve and two layer sieve double material can select; Apply to grain material¡¢power material clean up and grade dispose.
