The sieve bend box has realized automatic tiling and turning,in the production of complete tilting only three minutes of a person at a time,significantly improved the working efficiency,and reduces the labor intensity.The sieve bend operates with vibrating motors and impact device,capable of performing vibration and impact combined functions,the performance of the dewatering,de-sliming and sizing is significantly improved.The automatic iting mechanism has compact structure, operation nimble gradient,remote sensing control,safe and reliable.The sieve has been granted 2 national patents.