... .55790TQSF40175022-272*0.55850Working principleThe material flow into upper sieve through feeding hopper, under the function of sieve to-and-fro ... stone sieve and up air current make the sandstone moving through the gather stone area and examing area. At last,stone ... bend and deformation. If found the sieve surface has wear through place, should change it immediately.3. The motor bearing should ...